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PHP Cross Reference of WordPress Trunk (Updated Daily) |
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1 <?php 2 /** 3 * Option API 4 * 5 * @package WordPress 6 * @subpackage Option 7 */ 8 9 /** 10 * Retrieves an option value based on an option name. 11 * 12 * If the option does not exist, and a default value is not provided, 13 * boolean false is returned. This could be used to check whether you need 14 * to initialize an option during installation of a plugin, however that 15 * can be done better by using add_option() which will not overwrite 16 * existing options. 17 * 18 * Not initializing an option and using boolean `false` as a return value 19 * is a bad practice as it triggers an additional database query. 20 * 21 * The type of the returned value can be different from the type that was passed 22 * when saving or updating the option. If the option value was serialized, 23 * then it will be unserialized when it is returned. In this case the type will 24 * be the same. For example, storing a non-scalar value like an array will 25 * return the same array. 26 * 27 * In most cases non-string scalar and null values will be converted and returned 28 * as string equivalents. 29 * 30 * Exceptions: 31 * 32 * 1. When the option has not been saved in the database, the `$default_value` value 33 * is returned if provided. If not, boolean `false` is returned. 34 * 2. When one of the Options API filters is used: {@see 'pre_option_$option'}, 35 * {@see 'default_option_$option'}, or {@see 'option_$option'}, the returned 36 * value may not match the expected type. 37 * 3. When the option has just been saved in the database, and get_option() 38 * is used right after, non-string scalar and null values are not converted to 39 * string equivalents and the original type is returned. 40 * 41 * Examples: 42 * 43 * When adding options like this: `add_option( 'my_option_name', 'value' )` 44 * and then retrieving them with `get_option( 'my_option_name' )`, the returned 45 * values will be: 46 * 47 * - `false` returns `string(0) ""` 48 * - `true` returns `string(1) "1"` 49 * - `0` returns `string(1) "0"` 50 * - `1` returns `string(1) "1"` 51 * - `'0'` returns `string(1) "0"` 52 * - `'1'` returns `string(1) "1"` 53 * - `null` returns `string(0) ""` 54 * 55 * When adding options with non-scalar values like 56 * `add_option( 'my_array', array( false, 'str', null ) )`, the returned value 57 * will be identical to the original as it is serialized before saving 58 * it in the database: 59 * 60 * array(3) { 61 * [0] => bool(false) 62 * [1] => string(3) "str" 63 * [2] => NULL 64 * } 65 * 66 * @since 1.5.0 67 * 68 * @global wpdb $wpdb WordPress database abstraction object. 69 * 70 * @param string $option Name of the option to retrieve. Expected to not be SQL-escaped. 71 * @param mixed $default_value Optional. Default value to return if the option does not exist. 72 * @return mixed Value of the option. A value of any type may be returned, including 73 * scalar (string, boolean, float, integer), null, array, object. 74 * Scalar and null values will be returned as strings as long as they originate 75 * from a database stored option value. If there is no option in the database, 76 * boolean `false` is returned. 77 */ 78 function get_option( $option, $default_value = false ) { 79 global $wpdb; 80 81 if ( is_scalar( $option ) ) { 82 $option = trim( $option ); 83 } 84 85 if ( empty( $option ) ) { 86 return false; 87 } 88 89 /* 90 * Until a proper _deprecated_option() function can be introduced, 91 * redirect requests to deprecated keys to the new, correct ones. 92 */ 93 $deprecated_keys = array( 94 'blacklist_keys' => 'disallowed_keys', 95 'comment_whitelist' => 'comment_previously_approved', 96 ); 97 98 if ( isset( $deprecated_keys[ $option ] ) && ! wp_installing() ) { 99 _deprecated_argument( 100 __FUNCTION__, 101 '5.5.0', 102 sprintf( 103 /* translators: 1: Deprecated option key, 2: New option key. */ 104 __( 'The "%1$s" option key has been renamed to "%2$s".' ), 105 $option, 106 $deprecated_keys[ $option ] 107 ) 108 ); 109 return get_option( $deprecated_keys[ $option ], $default_value ); 110 } 111 112 /** 113 * Filters the value of an existing option before it is retrieved. 114 * 115 * The dynamic portion of the hook name, `$option`, refers to the option name. 116 * 117 * Returning a value other than false from the filter will short-circuit retrieval 118 * and return that value instead. 119 * 120 * @since 1.5.0 121 * @since 4.4.0 The `$option` parameter was added. 122 * @since 4.9.0 The `$default_value` parameter was added. 123 * 124 * @param mixed $pre_option The value to return instead of the option value. This differs from 125 * `$default_value`, which is used as the fallback value in the event 126 * the option doesn't exist elsewhere in get_option(). 127 * Default false (to skip past the short-circuit). 128 * @param string $option Option name. 129 * @param mixed $default_value The fallback value to return if the option does not exist. 130 * Default false. 131 */ 132 $pre = apply_filters( "pre_option_{$option}", false, $option, $default_value ); 133 134 /** 135 * Filters the value of all existing options before it is retrieved. 136 * 137 * Returning a truthy value from the filter will effectively short-circuit retrieval 138 * and return the passed value instead. 139 * 140 * @since 6.1.0 141 * 142 * @param mixed $pre_option The value to return instead of the option value. This differs from 143 * `$default_value`, which is used as the fallback value in the event 144 * the option doesn't exist elsewhere in get_option(). 145 * Default false (to skip past the short-circuit). 146 * @param string $option Name of the option. 147 * @param mixed $default_value The fallback value to return if the option does not exist. 148 * Default false. 149 */ 150 $pre = apply_filters( 'pre_option', $pre, $option, $default_value ); 151 152 if ( false !== $pre ) { 153 return $pre; 154 } 155 156 if ( defined( 'WP_SETUP_CONFIG' ) ) { 157 return false; 158 } 159 160 // Distinguish between `false` as a default, and not passing one. 161 $passed_default = func_num_args() > 1; 162 163 if ( ! wp_installing() ) { 164 $alloptions = wp_load_alloptions(); 165 /* 166 * When getting an option value, we check in the following order for performance: 167 * 168 * 1. Check the 'alloptions' cache first to prioritize existing loaded options. 169 * 2. Check the 'notoptions' cache before a cache lookup or DB hit. 170 * 3. Check the 'options' cache prior to a DB hit. 171 * 4. Check the DB for the option and cache it in either the 'options' or 'notoptions' cache. 172 */ 173 if ( isset( $alloptions[ $option ] ) ) { 174 $value = $alloptions[ $option ]; 175 } else { 176 // Check for non-existent options first to avoid unnecessary object cache lookups and DB hits. 177 $notoptions = wp_cache_get( 'notoptions', 'options' ); 178 179 if ( ! is_array( $notoptions ) ) { 180 $notoptions = array(); 181 wp_cache_set( 'notoptions', $notoptions, 'options' ); 182 } 183 184 if ( isset( $notoptions[ $option ] ) ) { 185 /** 186 * Filters the default value for an option. 187 * 188 * The dynamic portion of the hook name, `$option`, refers to the option name. 189 * 190 * @since 3.4.0 191 * @since 4.4.0 The `$option` parameter was added. 192 * @since 4.7.0 The `$passed_default` parameter was added to distinguish between a `false` value and the default parameter value. 193 * 194 * @param mixed $default_value The default value to return if the option does not exist 195 * in the database. 196 * @param string $option Option name. 197 * @param bool $passed_default Was `get_option()` passed a default value? 198 */ 199 return apply_filters( "default_option_{$option}", $default_value, $option, $passed_default ); 200 } 201 202 $value = wp_cache_get( $option, 'options' ); 203 204 if ( false === $value ) { 205 206 $row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) ); 207 208 // Has to be get_row() instead of get_var() because of funkiness with 0, false, null values. 209 if ( is_object( $row ) ) { 210 $value = $row->option_value; 211 wp_cache_add( $option, $value, 'options' ); 212 } else { // Option does not exist, so we must cache its non-existence. 213 $notoptions[ $option ] = true; 214 wp_cache_set( 'notoptions', $notoptions, 'options' ); 215 216 /** This filter is documented in wp-includes/option.php */ 217 return apply_filters( "default_option_{$option}", $default_value, $option, $passed_default ); 218 } 219 } 220 } 221 } else { 222 $suppress = $wpdb->suppress_errors(); 223 $row = $wpdb->get_row( $wpdb->prepare( "SELECT option_value FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) ); 224 $wpdb->suppress_errors( $suppress ); 225 226 if ( is_object( $row ) ) { 227 $value = $row->option_value; 228 } else { 229 /** This filter is documented in wp-includes/option.php */ 230 return apply_filters( "default_option_{$option}", $default_value, $option, $passed_default ); 231 } 232 } 233 234 // If home is not set, use siteurl. 235 if ( 'home' === $option && '' === $value ) { 236 return get_option( 'siteurl' ); 237 } 238 239 if ( in_array( $option, array( 'siteurl', 'home', 'category_base', 'tag_base' ), true ) ) { 240 $value = untrailingslashit( $value ); 241 } 242 243 /** 244 * Filters the value of an existing option. 245 * 246 * The dynamic portion of the hook name, `$option`, refers to the option name. 247 * 248 * @since 1.5.0 As 'option_' . $setting 249 * @since 3.0.0 250 * @since 4.4.0 The `$option` parameter was added. 251 * 252 * @param mixed $value Value of the option. If stored serialized, it will be 253 * unserialized prior to being returned. 254 * @param string $option Option name. 255 */ 256 return apply_filters( "option_{$option}", maybe_unserialize( $value ), $option ); 257 } 258 259 /** 260 * Primes specific options into the cache with a single database query. 261 * 262 * Only options that do not already exist in cache will be loaded. 263 * 264 * @since 6.4.0 265 * 266 * @global wpdb $wpdb WordPress database abstraction object. 267 * 268 * @param string[] $options An array of option names to be loaded. 269 */ 270 function wp_prime_option_caches( $options ) { 271 global $wpdb; 272 273 $alloptions = wp_load_alloptions(); 274 $cached_options = wp_cache_get_multiple( $options, 'options' ); 275 $notoptions = wp_cache_get( 'notoptions', 'options' ); 276 if ( ! is_array( $notoptions ) ) { 277 $notoptions = array(); 278 } 279 280 // Filter options that are not in the cache. 281 $options_to_prime = array(); 282 foreach ( $options as $option ) { 283 if ( 284 ( ! isset( $cached_options[ $option ] ) || false === $cached_options[ $option ] ) 285 && ! isset( $alloptions[ $option ] ) 286 && ! isset( $notoptions[ $option ] ) 287 ) { 288 $options_to_prime[] = $option; 289 } 290 } 291 292 // Bail early if there are no options to be loaded. 293 if ( empty( $options_to_prime ) ) { 294 return; 295 } 296 297 $results = $wpdb->get_results( 298 $wpdb->prepare( 299 sprintf( 300 "SELECT option_name, option_value FROM $wpdb->options WHERE option_name IN (%s)", 301 implode( ',', array_fill( 0, count( $options_to_prime ), '%s' ) ) 302 ), 303 $options_to_prime 304 ) 305 ); 306 307 $options_found = array(); 308 foreach ( $results as $result ) { 309 /* 310 * The cache is primed with the raw value (i.e. not maybe_unserialized). 311 * 312 * `get_option()` will handle unserializing the value as needed. 313 */ 314 $options_found[ $result->option_name ] = $result->option_value; 315 } 316 wp_cache_set_multiple( $options_found, 'options' ); 317 318 // If all options were found, no need to update `notoptions` cache. 319 if ( count( $options_found ) === count( $options_to_prime ) ) { 320 return; 321 } 322 323 $options_not_found = array_diff( $options_to_prime, array_keys( $options_found ) ); 324 325 // Add the options that were not found to the cache. 326 $update_notoptions = false; 327 foreach ( $options_not_found as $option_name ) { 328 if ( ! isset( $notoptions[ $option_name ] ) ) { 329 $notoptions[ $option_name ] = true; 330 $update_notoptions = true; 331 } 332 } 333 334 // Only update the cache if it was modified. 335 if ( $update_notoptions ) { 336 wp_cache_set( 'notoptions', $notoptions, 'options' ); 337 } 338 } 339 340 /** 341 * Primes the cache of all options registered with a specific option group. 342 * 343 * @since 6.4.0 344 * 345 * @global array $new_allowed_options 346 * 347 * @param string $option_group The option group to load options for. 348 */ 349 function wp_prime_option_caches_by_group( $option_group ) { 350 global $new_allowed_options; 351 352 if ( isset( $new_allowed_options[ $option_group ] ) ) { 353 wp_prime_option_caches( $new_allowed_options[ $option_group ] ); 354 } 355 } 356 357 /** 358 * Retrieves multiple options. 359 * 360 * Options are loaded as necessary first in order to use a single database query at most. 361 * 362 * @since 6.4.0 363 * 364 * @param string[] $options An array of option names to retrieve. 365 * @return array An array of key-value pairs for the requested options. 366 */ 367 function get_options( $options ) { 368 wp_prime_option_caches( $options ); 369 370 $result = array(); 371 foreach ( $options as $option ) { 372 $result[ $option ] = get_option( $option ); 373 } 374 375 return $result; 376 } 377 378 /** 379 * Sets the autoload values for multiple options in the database. 380 * 381 * Autoloading too many options can lead to performance problems, especially if the options are not frequently used. 382 * This function allows modifying the autoload value for multiple options without changing the actual option value. 383 * This is for example recommended for plugin activation and deactivation hooks, to ensure any options exclusively used 384 * by the plugin which are generally autoloaded can be set to not autoload when the plugin is inactive. 385 * 386 * @since 6.4.0 387 * @since 6.7.0 The autoload values 'yes' and 'no' are deprecated. 388 * 389 * @global wpdb $wpdb WordPress database abstraction object. 390 * 391 * @param array $options Associative array of option names and their autoload values to set. The option names are 392 * expected to not be SQL-escaped. The autoload values should be boolean values. For backward 393 * compatibility 'yes' and 'no' are also accepted, though using these values is deprecated. 394 * @return array Associative array of all provided $options as keys and boolean values for whether their autoload value 395 * was updated. 396 */ 397 function wp_set_option_autoload_values( array $options ) { 398 global $wpdb; 399 400 if ( ! $options ) { 401 return array(); 402 } 403 404 $grouped_options = array( 405 'on' => array(), 406 'off' => array(), 407 ); 408 $results = array(); 409 foreach ( $options as $option => $autoload ) { 410 wp_protect_special_option( $option ); // Ensure only valid options can be passed. 411 412 /* 413 * Sanitize autoload value and categorize accordingly. 414 * The values 'yes', 'no', 'on', and 'off' are supported for backward compatibility. 415 */ 416 if ( 'off' === $autoload || 'no' === $autoload || false === $autoload ) { 417 $grouped_options['off'][] = $option; 418 } else { 419 $grouped_options['on'][] = $option; 420 } 421 $results[ $option ] = false; // Initialize result value. 422 } 423 424 $where = array(); 425 $where_args = array(); 426 foreach ( $grouped_options as $autoload => $options ) { 427 if ( ! $options ) { 428 continue; 429 } 430 $placeholders = implode( ',', array_fill( 0, count( $options ), '%s' ) ); 431 $where[] = "autoload != '%s' AND option_name IN ($placeholders)"; 432 $where_args[] = $autoload; 433 foreach ( $options as $option ) { 434 $where_args[] = $option; 435 } 436 } 437 $where = 'WHERE ' . implode( ' OR ', $where ); 438 439 /* 440 * Determine the relevant options that do not already use the given autoload value. 441 * If no options are returned, no need to update. 442 */ 443 // phpcs:ignore WordPress.DB.PreparedSQL.InterpolatedNotPrepared,WordPress.DB.PreparedSQLPlaceholders.UnfinishedPrepare 444 $options_to_update = $wpdb->get_col( $wpdb->prepare( "SELECT option_name FROM $wpdb->options $where", $where_args ) ); 445 if ( ! $options_to_update ) { 446 return $results; 447 } 448 449 // Run UPDATE queries as needed (maximum 2) to update the relevant options' autoload values to 'yes' or 'no'. 450 foreach ( $grouped_options as $autoload => $options ) { 451 if ( ! $options ) { 452 continue; 453 } 454 $options = array_intersect( $options, $options_to_update ); 455 $grouped_options[ $autoload ] = $options; 456 if ( ! $grouped_options[ $autoload ] ) { 457 continue; 458 } 459 460 // Run query to update autoload value for all the options where it is needed. 461 $success = $wpdb->query( 462 $wpdb->prepare( 463 "UPDATE $wpdb->options SET autoload = %s WHERE option_name IN (" . implode( ',', array_fill( 0, count( $grouped_options[ $autoload ] ), '%s' ) ) . ')', 464 array_merge( 465 array( $autoload ), 466 $grouped_options[ $autoload ] 467 ) 468 ) 469 ); 470 if ( ! $success ) { 471 // Set option list to an empty array to indicate no options were updated. 472 $grouped_options[ $autoload ] = array(); 473 continue; 474 } 475 476 // Assume that on success all options were updated, which should be the case given only new values are sent. 477 foreach ( $grouped_options[ $autoload ] as $option ) { 478 $results[ $option ] = true; 479 } 480 } 481 482 /* 483 * If any options were changed to 'on', delete their individual caches, and delete 'alloptions' cache so that it 484 * is refreshed as needed. 485 * If no options were changed to 'on' but any options were changed to 'no', delete them from the 'alloptions' 486 * cache. This is not necessary when options were changed to 'on', since in that situation the entire cache is 487 * deleted anyway. 488 */ 489 if ( $grouped_options['on'] ) { 490 wp_cache_delete_multiple( $grouped_options['on'], 'options' ); 491 wp_cache_delete( 'alloptions', 'options' ); 492 } elseif ( $grouped_options['off'] ) { 493 $alloptions = wp_load_alloptions( true ); 494 495 foreach ( $grouped_options['off'] as $option ) { 496 if ( isset( $alloptions[ $option ] ) ) { 497 unset( $alloptions[ $option ] ); 498 } 499 } 500 501 wp_cache_set( 'alloptions', $alloptions, 'options' ); 502 } 503 504 return $results; 505 } 506 507 /** 508 * Sets the autoload value for multiple options in the database. 509 * 510 * This is a wrapper for {@see wp_set_option_autoload_values()}, which can be used to set different autoload values for 511 * each option at once. 512 * 513 * @since 6.4.0 514 * @since 6.7.0 The autoload values 'yes' and 'no' are deprecated. 515 * 516 * @see wp_set_option_autoload_values() 517 * 518 * @param string[] $options List of option names. Expected to not be SQL-escaped. 519 * @param bool $autoload Autoload value to control whether to load the options when WordPress starts up. 520 * For backward compatibility 'yes' and 'no' are also accepted, though using these values is 521 * deprecated. 522 * @return array Associative array of all provided $options as keys and boolean values for whether their autoload value 523 * was updated. 524 */ 525 function wp_set_options_autoload( array $options, $autoload ) { 526 return wp_set_option_autoload_values( 527 array_fill_keys( $options, $autoload ) 528 ); 529 } 530 531 /** 532 * Sets the autoload value for an option in the database. 533 * 534 * This is a wrapper for {@see wp_set_option_autoload_values()}, which can be used to set the autoload value for 535 * multiple options at once. 536 * 537 * @since 6.4.0 538 * @since 6.7.0 The autoload values 'yes' and 'no' are deprecated. 539 * 540 * @see wp_set_option_autoload_values() 541 * 542 * @param string $option Name of the option. Expected to not be SQL-escaped. 543 * @param bool $autoload Autoload value to control whether to load the option when WordPress starts up. 544 * For backward compatibility 'yes' and 'no' are also accepted, though using these values is 545 * deprecated. 546 * @return bool True if the autoload value was modified, false otherwise. 547 */ 548 function wp_set_option_autoload( $option, $autoload ) { 549 $result = wp_set_option_autoload_values( array( $option => $autoload ) ); 550 if ( isset( $result[ $option ] ) ) { 551 return $result[ $option ]; 552 } 553 return false; 554 } 555 556 /** 557 * Protects WordPress special option from being modified. 558 * 559 * Will die if $option is in protected list. Protected options are 'alloptions' 560 * and 'notoptions' options. 561 * 562 * @since 2.2.0 563 * 564 * @param string $option Option name. 565 */ 566 function wp_protect_special_option( $option ) { 567 if ( 'alloptions' === $option || 'notoptions' === $option ) { 568 wp_die( 569 sprintf( 570 /* translators: %s: Option name. */ 571 __( '%s is a protected WP option and may not be modified' ), 572 esc_html( $option ) 573 ) 574 ); 575 } 576 } 577 578 /** 579 * Prints option value after sanitizing for forms. 580 * 581 * @since 1.5.0 582 * 583 * @param string $option Option name. 584 */ 585 function form_option( $option ) { 586 echo esc_attr( get_option( $option ) ); 587 } 588 589 /** 590 * Loads and caches all autoloaded options, if available or all options. 591 * 592 * @since 2.2.0 593 * @since 5.3.1 The `$force_cache` parameter was added. 594 * 595 * @global wpdb $wpdb WordPress database abstraction object. 596 * 597 * @param bool $force_cache Optional. Whether to force an update of the local cache 598 * from the persistent cache. Default false. 599 * @return array List of all options. 600 */ 601 function wp_load_alloptions( $force_cache = false ) { 602 global $wpdb; 603 604 /** 605 * Filters the array of alloptions before it is populated. 606 * 607 * Returning an array from the filter will effectively short circuit 608 * wp_load_alloptions(), returning that value instead. 609 * 610 * @since 6.2.0 611 * 612 * @param array|null $alloptions An array of alloptions. Default null. 613 * @param bool $force_cache Whether to force an update of the local cache from the persistent cache. Default false. 614 */ 615 $alloptions = apply_filters( 'pre_wp_load_alloptions', null, $force_cache ); 616 if ( is_array( $alloptions ) ) { 617 return $alloptions; 618 } 619 620 if ( ! wp_installing() || ! is_multisite() ) { 621 $alloptions = wp_cache_get( 'alloptions', 'options', $force_cache ); 622 } else { 623 $alloptions = false; 624 } 625 626 if ( ! $alloptions ) { 627 $suppress = $wpdb->suppress_errors(); 628 $alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options WHERE autoload IN ( '" . implode( "', '", esc_sql( wp_autoload_values_to_autoload() ) ) . "' )" ); 629 630 if ( ! $alloptions_db ) { 631 $alloptions_db = $wpdb->get_results( "SELECT option_name, option_value FROM $wpdb->options" ); 632 } 633 $wpdb->suppress_errors( $suppress ); 634 635 $alloptions = array(); 636 foreach ( (array) $alloptions_db as $o ) { 637 $alloptions[ $o->option_name ] = $o->option_value; 638 } 639 640 if ( ! wp_installing() || ! is_multisite() ) { 641 /** 642 * Filters all options before caching them. 643 * 644 * @since 4.9.0 645 * 646 * @param array $alloptions Array with all options. 647 */ 648 $alloptions = apply_filters( 'pre_cache_alloptions', $alloptions ); 649 650 wp_cache_add( 'alloptions', $alloptions, 'options' ); 651 } 652 } 653 654 /** 655 * Filters all options after retrieving them. 656 * 657 * @since 4.9.0 658 * 659 * @param array $alloptions Array with all options. 660 */ 661 return apply_filters( 'alloptions', $alloptions ); 662 } 663 664 /** 665 * Primes specific network options for the current network into the cache with a single database query. 666 * 667 * Only network options that do not already exist in cache will be loaded. 668 * 669 * If site is not multisite, then call wp_prime_option_caches(). 670 * 671 * @since 6.6.0 672 * 673 * @see wp_prime_network_option_caches() 674 * 675 * @param string[] $options An array of option names to be loaded. 676 */ 677 function wp_prime_site_option_caches( array $options ) { 678 wp_prime_network_option_caches( null, $options ); 679 } 680 681 /** 682 * Primes specific network options into the cache with a single database query. 683 * 684 * Only network options that do not already exist in cache will be loaded. 685 * 686 * If site is not multisite, then call wp_prime_option_caches(). 687 * 688 * @since 6.6.0 689 * 690 * @global wpdb $wpdb WordPress database abstraction object. 691 * 692 * @param int $network_id ID of the network. Can be null to default to the current network ID. 693 * @param string[] $options An array of option names to be loaded. 694 */ 695 function wp_prime_network_option_caches( $network_id, array $options ) { 696 global $wpdb; 697 698 if ( wp_installing() ) { 699 return; 700 } 701 702 if ( ! is_multisite() ) { 703 wp_prime_option_caches( $options ); 704 return; 705 } 706 707 if ( $network_id && ! is_numeric( $network_id ) ) { 708 return; 709 } 710 711 $network_id = (int) $network_id; 712 713 // Fallback to the current network if a network ID is not specified. 714 if ( ! $network_id ) { 715 $network_id = get_current_network_id(); 716 } 717 718 $cache_keys = array(); 719 foreach ( $options as $option ) { 720 $cache_keys[ $option ] = "{$network_id}:{$option}"; 721 } 722 723 $cache_group = 'site-options'; 724 $cached_options = wp_cache_get_multiple( array_values( $cache_keys ), $cache_group ); 725 726 $notoptions_key = "$network_id:notoptions"; 727 $notoptions = wp_cache_get( $notoptions_key, $cache_group ); 728 729 if ( ! is_array( $notoptions ) ) { 730 $notoptions = array(); 731 } 732 733 // Filter options that are not in the cache. 734 $options_to_prime = array(); 735 foreach ( $cache_keys as $option => $cache_key ) { 736 if ( 737 ( ! isset( $cached_options[ $cache_key ] ) || false === $cached_options[ $cache_key ] ) 738 && ! isset( $notoptions[ $option ] ) 739 ) { 740 $options_to_prime[] = $option; 741 } 742 } 743 744 // Bail early if there are no options to be loaded. 745 if ( empty( $options_to_prime ) ) { 746 return; 747 } 748 749 $query_args = $options_to_prime; 750 $query_args[] = $network_id; 751 $results = $wpdb->get_results( 752 $wpdb->prepare( 753 sprintf( 754 "SELECT meta_key, meta_value FROM $wpdb->sitemeta WHERE meta_key IN (%s) AND site_id = %s", 755 implode( ',', array_fill( 0, count( $options_to_prime ), '%s' ) ), 756 '%d' 757 ), 758 $query_args 759 ) 760 ); 761 762 $data = array(); 763 $options_found = array(); 764 foreach ( $results as $result ) { 765 $key = $result->meta_key; 766 $cache_key = $cache_keys[ $key ]; 767 $data[ $cache_key ] = maybe_unserialize( $result->meta_value ); 768 $options_found[] = $key; 769 } 770 wp_cache_set_multiple( $data, $cache_group ); 771 // If all options were found, no need to update `notoptions` cache. 772 if ( count( $options_found ) === count( $options_to_prime ) ) { 773 return; 774 } 775 776 $options_not_found = array_diff( $options_to_prime, $options_found ); 777 778 // Add the options that were not found to the cache. 779 $update_notoptions = false; 780 foreach ( $options_not_found as $option_name ) { 781 if ( ! isset( $notoptions[ $option_name ] ) ) { 782 $notoptions[ $option_name ] = true; 783 $update_notoptions = true; 784 } 785 } 786 787 // Only update the cache if it was modified. 788 if ( $update_notoptions ) { 789 wp_cache_set( $notoptions_key, $notoptions, $cache_group ); 790 } 791 } 792 793 /** 794 * Loads and primes caches of certain often requested network options if is_multisite(). 795 * 796 * @since 3.0.0 797 * @since 6.3.0 Also prime caches for network options when persistent object cache is enabled. 798 * @since 6.6.0 Uses wp_prime_network_option_caches(). 799 * 800 * @param int $network_id Optional. Network ID of network for which to prime network options cache. Defaults to current network. 801 */ 802 function wp_load_core_site_options( $network_id = null ) { 803 if ( ! is_multisite() || wp_installing() ) { 804 return; 805 } 806 $core_options = array( 'site_name', 'siteurl', 'active_sitewide_plugins', '_site_transient_timeout_theme_roots', '_site_transient_theme_roots', 'site_admins', 'can_compress_scripts', 'global_terms_enabled', 'ms_files_rewriting', 'WPLANG' ); 807 808 wp_prime_network_option_caches( $network_id, $core_options ); 809 } 810 811 /** 812 * Updates the value of an option that was already added. 813 * 814 * You do not need to serialize values. If the value needs to be serialized, 815 * then it will be serialized before it is inserted into the database. 816 * Remember, resources cannot be serialized or added as an option. 817 * 818 * If the option does not exist, it will be created. 819 820 * This function is designed to work with or without a logged-in user. In terms of security, 821 * plugin developers should check the current user's capabilities before updating any options. 822 * 823 * @since 1.0.0 824 * @since 4.2.0 The `$autoload` parameter was added. 825 * @since 6.7.0 The autoload values 'yes' and 'no' are deprecated. 826 * 827 * @global wpdb $wpdb WordPress database abstraction object. 828 * 829 * @param string $option Name of the option to update. Expected to not be SQL-escaped. 830 * @param mixed $value Option value. Must be serializable if non-scalar. Expected to not be SQL-escaped. 831 * @param bool|null $autoload Optional. Whether to load the option when WordPress starts up. 832 * Accepts a boolean, or `null` to stick with the initial value or, if no initial value is 833 * set, to leave the decision up to default heuristics in WordPress. 834 * For existing options, `$autoload` can only be updated using `update_option()` if `$value` 835 * is also changed. 836 * For backward compatibility 'yes' and 'no' are also accepted, though using these values is 837 * deprecated. 838 * Autoloading too many options can lead to performance problems, especially if the 839 * options are not frequently used. For options which are accessed across several places 840 * in the frontend, it is recommended to autoload them, by using true. 841 * For options which are accessed only on few specific URLs, it is recommended 842 * to not autoload them, by using false. 843 * For non-existent options, the default is null, which means WordPress will determine 844 * the autoload value. 845 * @return bool True if the value was updated, false otherwise. 846 */ 847 function update_option( $option, $value, $autoload = null ) { 848 global $wpdb; 849 850 if ( is_scalar( $option ) ) { 851 $option = trim( $option ); 852 } 853 854 if ( empty( $option ) ) { 855 return false; 856 } 857 858 /* 859 * Until a proper _deprecated_option() function can be introduced, 860 * redirect requests to deprecated keys to the new, correct ones. 861 */ 862 $deprecated_keys = array( 863 'blacklist_keys' => 'disallowed_keys', 864 'comment_whitelist' => 'comment_previously_approved', 865 ); 866 867 if ( isset( $deprecated_keys[ $option ] ) && ! wp_installing() ) { 868 _deprecated_argument( 869 __FUNCTION__, 870 '5.5.0', 871 sprintf( 872 /* translators: 1: Deprecated option key, 2: New option key. */ 873 __( 'The "%1$s" option key has been renamed to "%2$s".' ), 874 $option, 875 $deprecated_keys[ $option ] 876 ) 877 ); 878 return update_option( $deprecated_keys[ $option ], $value, $autoload ); 879 } 880 881 wp_protect_special_option( $option ); 882 883 if ( is_object( $value ) ) { 884 $value = clone $value; 885 } 886 887 $value = sanitize_option( $option, $value ); 888 $old_value = get_option( $option ); 889 890 /** 891 * Filters a specific option before its value is (maybe) serialized and updated. 892 * 893 * The dynamic portion of the hook name, `$option`, refers to the option name. 894 * 895 * @since 2.6.0 896 * @since 4.4.0 The `$option` parameter was added. 897 * 898 * @param mixed $value The new, unserialized option value. 899 * @param mixed $old_value The old option value. 900 * @param string $option Option name. 901 */ 902 $value = apply_filters( "pre_update_option_{$option}", $value, $old_value, $option ); 903 904 /** 905 * Filters an option before its value is (maybe) serialized and updated. 906 * 907 * @since 3.9.0 908 * 909 * @param mixed $value The new, unserialized option value. 910 * @param string $option Name of the option. 911 * @param mixed $old_value The old option value. 912 */ 913 $value = apply_filters( 'pre_update_option', $value, $option, $old_value ); 914 915 /* 916 * If the new and old values are the same, no need to update. 917 * 918 * Unserialized values will be adequate in most cases. If the unserialized 919 * data differs, the (maybe) serialized data is checked to avoid 920 * unnecessary database calls for otherwise identical object instances. 921 * 922 * See https://core.trac.wordpress.org/ticket/38903 923 */ 924 if ( $value === $old_value || maybe_serialize( $value ) === maybe_serialize( $old_value ) ) { 925 return false; 926 } 927 928 /** This filter is documented in wp-includes/option.php */ 929 if ( apply_filters( "default_option_{$option}", false, $option, false ) === $old_value ) { 930 return add_option( $option, $value, '', $autoload ); 931 } 932 933 $serialized_value = maybe_serialize( $value ); 934 935 /** 936 * Fires immediately before an option value is updated. 937 * 938 * @since 2.9.0 939 * 940 * @param string $option Name of the option to update. 941 * @param mixed $old_value The old option value. 942 * @param mixed $value The new option value. 943 */ 944 do_action( 'update_option', $option, $old_value, $value ); 945 946 $update_args = array( 947 'option_value' => $serialized_value, 948 ); 949 950 if ( null !== $autoload ) { 951 $update_args['autoload'] = wp_determine_option_autoload_value( $option, $value, $serialized_value, $autoload ); 952 } else { 953 // Retrieve the current autoload value to reevaluate it in case it was set automatically. 954 $raw_autoload = $wpdb->get_var( $wpdb->prepare( "SELECT autoload FROM $wpdb->options WHERE option_name = %s LIMIT 1", $option ) ); 955 $allow_values = array( 'auto-on', 'auto-off', 'auto' ); 956 if ( in_array( $raw_autoload, $allow_values, true ) ) { 957 $autoload = wp_determine_option_autoload_value( $option, $value, $serialized_value, $autoload ); 958 if ( $autoload !== $raw_autoload ) { 959 $update_args['autoload'] = $autoload; 960 } 961 } 962 } 963 964 $result = $wpdb->update( $wpdb->options, $update_args, array( 'option_name' => $option ) ); 965 if ( ! $result ) { 966 return false; 967 } 968 969 $notoptions = wp_cache_get( 'notoptions', 'options' ); 970 971 if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) { 972 unset( $notoptions[ $option ] ); 973 wp_cache_set( 'notoptions', $notoptions, 'options' ); 974 } 975 976 if ( ! wp_installing() ) { 977 if ( ! isset( $update_args['autoload'] ) ) { 978 // Update the cached value based on where it is currently cached. 979 $alloptions = wp_load_alloptions( true ); 980 981 if ( isset( $alloptions[ $option ] ) ) { 982 $alloptions[ $option ] = $serialized_value; 983 wp_cache_set( 'alloptions', $alloptions, 'options' ); 984 } else { 985 wp_cache_set( $option, $serialized_value, 'options' ); 986 } 987 } elseif ( in_array( $update_args['autoload'], wp_autoload_values_to_autoload(), true ) ) { 988 // Delete the individual cache, then set in alloptions cache. 989 wp_cache_delete( $option, 'options' ); 990 991 $alloptions = wp_load_alloptions( true ); 992 993 $alloptions[ $option ] = $serialized_value; 994 wp_cache_set( 'alloptions', $alloptions, 'options' ); 995 } else { 996 // Delete the alloptions cache, then set the individual cache. 997 $alloptions = wp_load_alloptions( true ); 998 999 if ( isset( $alloptions[ $option ] ) ) { 1000 unset( $alloptions[ $option ] ); 1001 wp_cache_set( 'alloptions', $alloptions, 'options' ); 1002 } 1003 1004 wp_cache_set( $option, $serialized_value, 'options' ); 1005 } 1006 } 1007 1008 /** 1009 * Fires after the value of a specific option has been successfully updated. 1010 * 1011 * The dynamic portion of the hook name, `$option`, refers to the option name. 1012 * 1013 * @since 2.0.1 1014 * @since 4.4.0 The `$option` parameter was added. 1015 * 1016 * @param mixed $old_value The old option value. 1017 * @param mixed $value The new option value. 1018 * @param string $option Option name. 1019 */ 1020 do_action( "update_option_{$option}", $old_value, $value, $option ); 1021 1022 /** 1023 * Fires after the value of an option has been successfully updated. 1024 * 1025 * @since 2.9.0 1026 * 1027 * @param string $option Name of the updated option. 1028 * @param mixed $old_value The old option value. 1029 * @param mixed $value The new option value. 1030 */ 1031 do_action( 'updated_option', $option, $old_value, $value ); 1032 1033 return true; 1034 } 1035 1036 /** 1037 * Adds a new option. 1038 * 1039 * You do not need to serialize values. If the value needs to be serialized, 1040 * then it will be serialized before it is inserted into the database. 1041 * Remember, resources cannot be serialized or added as an option. 1042 * 1043 * You can create options without values and then update the values later. 1044 * Existing options will not be updated and checks are performed to ensure that you 1045 * aren't adding a protected WordPress option. Care should be taken to not name 1046 * options the same as the ones which are protected. 1047 * 1048 * @since 1.0.0 1049 * @since 6.6.0 The $autoload parameter's default value was changed to null. 1050 * @since 6.7.0 The autoload values 'yes' and 'no' are deprecated. 1051 * 1052 * @global wpdb $wpdb WordPress database abstraction object. 1053 * 1054 * @param string $option Name of the option to add. Expected to not be SQL-escaped. 1055 * @param mixed $value Optional. Option value. Must be serializable if non-scalar. 1056 * Expected to not be SQL-escaped. 1057 * @param string $deprecated Optional. Description. Not used anymore. 1058 * @param bool|null $autoload Optional. Whether to load the option when WordPress starts up. 1059 * Accepts a boolean, or `null` to leave the decision up to default heuristics in 1060 * WordPress. For backward compatibility 'yes' and 'no' are also accepted, though using 1061 * these values is deprecated. 1062 * Autoloading too many options can lead to performance problems, especially if the 1063 * options are not frequently used. For options which are accessed across several places 1064 * in the frontend, it is recommended to autoload them, by using true. 1065 * For options which are accessed only on few specific URLs, it is recommended 1066 * to not autoload them, by using false. 1067 * Default is null, which means WordPress will determine the autoload value. 1068 * @return bool True if the option was added, false otherwise. 1069 */ 1070 function add_option( $option, $value = '', $deprecated = '', $autoload = null ) { 1071 global $wpdb; 1072 1073 if ( ! empty( $deprecated ) ) { 1074 _deprecated_argument( __FUNCTION__, '2.3.0' ); 1075 } 1076 1077 if ( is_scalar( $option ) ) { 1078 $option = trim( $option ); 1079 } 1080 1081 if ( empty( $option ) ) { 1082 return false; 1083 } 1084 1085 /* 1086 * Until a proper _deprecated_option() function can be introduced, 1087 * redirect requests to deprecated keys to the new, correct ones. 1088 */ 1089 $deprecated_keys = array( 1090 'blacklist_keys' => 'disallowed_keys', 1091 'comment_whitelist' => 'comment_previously_approved', 1092 ); 1093 1094 if ( isset( $deprecated_keys[ $option ] ) && ! wp_installing() ) { 1095 _deprecated_argument( 1096 __FUNCTION__, 1097 '5.5.0', 1098 sprintf( 1099 /* translators: 1: Deprecated option key, 2: New option key. */ 1100 __( 'The "%1$s" option key has been renamed to "%2$s".' ), 1101 $option, 1102 $deprecated_keys[ $option ] 1103 ) 1104 ); 1105 return add_option( $deprecated_keys[ $option ], $value, $deprecated, $autoload ); 1106 } 1107 1108 wp_protect_special_option( $option ); 1109 1110 if ( is_object( $value ) ) { 1111 $value = clone $value; 1112 } 1113 1114 $value = sanitize_option( $option, $value ); 1115 1116 /* 1117 * Make sure the option doesn't already exist. 1118 * We can check the 'notoptions' cache before we ask for a DB query. 1119 */ 1120 $notoptions = wp_cache_get( 'notoptions', 'options' ); 1121 1122 if ( ! is_array( $notoptions ) || ! isset( $notoptions[ $option ] ) ) { 1123 /** This filter is documented in wp-includes/option.php */ 1124 if ( apply_filters( "default_option_{$option}", false, $option, false ) !== get_option( $option ) ) { 1125 return false; 1126 } 1127 } 1128 1129 $serialized_value = maybe_serialize( $value ); 1130 1131 $autoload = wp_determine_option_autoload_value( $option, $value, $serialized_value, $autoload ); 1132 1133 /** 1134 * Fires before an option is added. 1135 * 1136 * @since 2.9.0 1137 * 1138 * @param string $option Name of the option to add. 1139 * @param mixed $value Value of the option. 1140 */ 1141 do_action( 'add_option', $option, $value ); 1142 1143 $result = $wpdb->query( $wpdb->prepare( "INSERT INTO `$wpdb->options` (`option_name`, `option_value`, `autoload`) VALUES (%s, %s, %s) ON DUPLICATE KEY UPDATE `option_name` = VALUES(`option_name`), `option_value` = VALUES(`option_value`), `autoload` = VALUES(`autoload`)", $option, $serialized_value, $autoload ) ); 1144 if ( ! $result ) { 1145 return false; 1146 } 1147 1148 if ( ! wp_installing() ) { 1149 if ( in_array( $autoload, wp_autoload_values_to_autoload(), true ) ) { 1150 $alloptions = wp_load_alloptions( true ); 1151 $alloptions[ $option ] = $serialized_value; 1152 wp_cache_set( 'alloptions', $alloptions, 'options' ); 1153 } else { 1154 wp_cache_set( $option, $serialized_value, 'options' ); 1155 } 1156 } 1157 1158 // This option exists now. 1159 $notoptions = wp_cache_get( 'notoptions', 'options' ); // Yes, again... we need it to be fresh. 1160 1161 if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) { 1162 unset( $notoptions[ $option ] ); 1163 wp_cache_set( 'notoptions', $notoptions, 'options' ); 1164 } 1165 1166 /** 1167 * Fires after a specific option has been added. 1168 * 1169 * The dynamic portion of the hook name, `$option`, refers to the option name. 1170 * 1171 * @since 2.5.0 As "add_option_{$name}" 1172 * @since 3.0.0 1173 * 1174 * @param string $option Name of the option to add. 1175 * @param mixed $value Value of the option. 1176 */ 1177 do_action( "add_option_{$option}", $option, $value ); 1178 1179 /** 1180 * Fires after an option has been added. 1181 * 1182 * @since 2.9.0 1183 * 1184 * @param string $option Name of the added option. 1185 * @param mixed $value Value of the option. 1186 */ 1187 do_action( 'added_option', $option, $value ); 1188 1189 return true; 1190 } 1191 1192 /** 1193 * Removes an option by name. Prevents removal of protected WordPress options. 1194 * 1195 * @since 1.2.0 1196 * 1197 * @global wpdb $wpdb WordPress database abstraction object. 1198 * 1199 * @param string $option Name of the option to delete. Expected to not be SQL-escaped. 1200 * @return bool True if the option was deleted, false otherwise. 1201 */ 1202 function delete_option( $option ) { 1203 global $wpdb; 1204 1205 if ( is_scalar( $option ) ) { 1206 $option = trim( $option ); 1207 } 1208 1209 if ( empty( $option ) ) { 1210 return false; 1211 } 1212 1213 wp_protect_special_option( $option ); 1214 1215 // Get the ID, if no ID then return. 1216 $row = $wpdb->get_row( $wpdb->prepare( "SELECT autoload FROM $wpdb->options WHERE option_name = %s", $option ) ); 1217 if ( is_null( $row ) ) { 1218 return false; 1219 } 1220 1221 /** 1222 * Fires immediately before an option is deleted. 1223 * 1224 * @since 2.9.0 1225 * 1226 * @param string $option Name of the option to delete. 1227 */ 1228 do_action( 'delete_option', $option ); 1229 1230 $result = $wpdb->delete( $wpdb->options, array( 'option_name' => $option ) ); 1231 1232 if ( ! wp_installing() ) { 1233 if ( in_array( $row->autoload, wp_autoload_values_to_autoload(), true ) ) { 1234 $alloptions = wp_load_alloptions( true ); 1235 1236 if ( is_array( $alloptions ) && isset( $alloptions[ $option ] ) ) { 1237 unset( $alloptions[ $option ] ); 1238 wp_cache_set( 'alloptions', $alloptions, 'options' ); 1239 } 1240 } else { 1241 wp_cache_delete( $option, 'options' ); 1242 } 1243 1244 $notoptions = wp_cache_get( 'notoptions', 'options' ); 1245 1246 if ( ! is_array( $notoptions ) ) { 1247 $notoptions = array(); 1248 } 1249 $notoptions[ $option ] = true; 1250 1251 wp_cache_set( 'notoptions', $notoptions, 'options' ); 1252 } 1253 1254 if ( $result ) { 1255 1256 /** 1257 * Fires after a specific option has been deleted. 1258 * 1259 * The dynamic portion of the hook name, `$option`, refers to the option name. 1260 * 1261 * @since 3.0.0 1262 * 1263 * @param string $option Name of the deleted option. 1264 */ 1265 do_action( "delete_option_{$option}", $option ); 1266 1267 /** 1268 * Fires after an option has been deleted. 1269 * 1270 * @since 2.9.0 1271 * 1272 * @param string $option Name of the deleted option. 1273 */ 1274 do_action( 'deleted_option', $option ); 1275 1276 return true; 1277 } 1278 1279 return false; 1280 } 1281 1282 /** 1283 * Determines the appropriate autoload value for an option based on input. 1284 * 1285 * This function checks the provided autoload value and returns a standardized value 1286 * ('on', 'off', 'auto-on', 'auto-off', or 'auto') based on specific conditions. 1287 * 1288 * If no explicit autoload value is provided, the function will check for certain heuristics around the given option. 1289 * It will return `auto-on` to indicate autoloading, `auto-off` to indicate not autoloading, or `auto` if no clear 1290 * decision could be made. 1291 * 1292 * @since 6.6.0 1293 * @access private 1294 * 1295 * @param string $option The name of the option. 1296 * @param mixed $value The value of the option to check its autoload value. 1297 * @param mixed $serialized_value The serialized value of the option to check its autoload value. 1298 * @param bool|null $autoload The autoload value to check. 1299 * Accepts 'on'|true to enable or 'off'|false to disable, or 1300 * 'auto-on', 'auto-off', or 'auto' for internal purposes. 1301 * Any other autoload value will be forced to either 'auto-on', 1302 * 'auto-off', or 'auto'. 1303 * 'yes' and 'no' are supported for backward compatibility. 1304 * @return string Returns the original $autoload value if explicit, or 'auto-on', 'auto-off', 1305 * or 'auto' depending on default heuristics. 1306 */ 1307 function wp_determine_option_autoload_value( $option, $value, $serialized_value, $autoload ) { 1308 1309 // Check if autoload is a boolean. 1310 if ( is_bool( $autoload ) ) { 1311 return $autoload ? 'on' : 'off'; 1312 } 1313 1314 switch ( $autoload ) { 1315 case 'on': 1316 case 'yes': 1317 return 'on'; 1318 case 'off': 1319 case 'no': 1320 return 'off'; 1321 } 1322 1323 /** 1324 * Allows to determine the default autoload value for an option where no explicit value is passed. 1325 * 1326 * @since 6.6.0 1327 * 1328 * @param bool|null $autoload The default autoload value to set. Returning true will be set as 'auto-on' in the 1329 * database, false will be set as 'auto-off', and null will be set as 'auto'. 1330 * @param string $option The passed option name. 1331 * @param mixed $value The passed option value to be saved. 1332 */ 1333 $autoload = apply_filters( 'wp_default_autoload_value', null, $option, $value, $serialized_value ); 1334 if ( is_bool( $autoload ) ) { 1335 return $autoload ? 'auto-on' : 'auto-off'; 1336 } 1337 1338 return 'auto'; 1339 } 1340 1341 /** 1342 * Filters the default autoload value to disable autoloading if the option value is too large. 1343 * 1344 * @since 6.6.0 1345 * @access private 1346 * 1347 * @param bool|null $autoload The default autoload value to set. 1348 * @param string $option The passed option name. 1349 * @param mixed $value The passed option value to be saved. 1350 * @param mixed $serialized_value The passed option value to be saved, in serialized form. 1351 * @return bool|null Potentially modified $default. 1352 */ 1353 function wp_filter_default_autoload_value_via_option_size( $autoload, $option, $value, $serialized_value ) { 1354 /** 1355 * Filters the maximum size of option value in bytes. 1356 * 1357 * @since 6.6.0 1358 * 1359 * @param int $max_option_size The option-size threshold, in bytes. Default 150000. 1360 * @param string $option The name of the option. 1361 */ 1362 $max_option_size = (int) apply_filters( 'wp_max_autoloaded_option_size', 150000, $option ); 1363 $size = ! empty( $serialized_value ) ? strlen( $serialized_value ) : 0; 1364 1365 if ( $size > $max_option_size ) { 1366 return false; 1367 } 1368 1369 return $autoload; 1370 } 1371 1372 /** 1373 * Deletes a transient. 1374 * 1375 * @since 2.8.0 1376 * 1377 * @param string $transient Transient name. Expected to not be SQL-escaped. 1378 * @return bool True if the transient was deleted, false otherwise. 1379 */ 1380 function delete_transient( $transient ) { 1381 1382 /** 1383 * Fires immediately before a specific transient is deleted. 1384 * 1385 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 1386 * 1387 * @since 3.0.0 1388 * 1389 * @param string $transient Transient name. 1390 */ 1391 do_action( "delete_transient_{$transient}", $transient ); 1392 1393 if ( wp_using_ext_object_cache() || wp_installing() ) { 1394 $result = wp_cache_delete( $transient, 'transient' ); 1395 } else { 1396 $option_timeout = '_transient_timeout_' . $transient; 1397 $option = '_transient_' . $transient; 1398 $result = delete_option( $option ); 1399 1400 if ( $result ) { 1401 delete_option( $option_timeout ); 1402 } 1403 } 1404 1405 if ( $result ) { 1406 1407 /** 1408 * Fires after a transient is deleted. 1409 * 1410 * @since 3.0.0 1411 * 1412 * @param string $transient Deleted transient name. 1413 */ 1414 do_action( 'deleted_transient', $transient ); 1415 } 1416 1417 return $result; 1418 } 1419 1420 /** 1421 * Retrieves the value of a transient. 1422 * 1423 * If the transient does not exist, does not have a value, or has expired, 1424 * then the return value will be false. 1425 * 1426 * @since 2.8.0 1427 * 1428 * @param string $transient Transient name. Expected to not be SQL-escaped. 1429 * @return mixed Value of transient. 1430 */ 1431 function get_transient( $transient ) { 1432 1433 /** 1434 * Filters the value of an existing transient before it is retrieved. 1435 * 1436 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 1437 * 1438 * Returning a value other than false from the filter will short-circuit retrieval 1439 * and return that value instead. 1440 * 1441 * @since 2.8.0 1442 * @since 4.4.0 The `$transient` parameter was added 1443 * 1444 * @param mixed $pre_transient The default value to return if the transient does not exist. 1445 * Any value other than false will short-circuit the retrieval 1446 * of the transient, and return that value. 1447 * @param string $transient Transient name. 1448 */ 1449 $pre = apply_filters( "pre_transient_{$transient}", false, $transient ); 1450 1451 if ( false !== $pre ) { 1452 return $pre; 1453 } 1454 1455 if ( wp_using_ext_object_cache() || wp_installing() ) { 1456 $value = wp_cache_get( $transient, 'transient' ); 1457 } else { 1458 $transient_option = '_transient_' . $transient; 1459 if ( ! wp_installing() ) { 1460 // If option is not in alloptions, it is not autoloaded and thus has a timeout. 1461 $alloptions = wp_load_alloptions(); 1462 1463 if ( ! isset( $alloptions[ $transient_option ] ) ) { 1464 $transient_timeout = '_transient_timeout_' . $transient; 1465 wp_prime_option_caches( array( $transient_option, $transient_timeout ) ); 1466 $timeout = get_option( $transient_timeout ); 1467 if ( false !== $timeout && $timeout < time() ) { 1468 delete_option( $transient_option ); 1469 delete_option( $transient_timeout ); 1470 $value = false; 1471 } 1472 } 1473 } 1474 1475 if ( ! isset( $value ) ) { 1476 $value = get_option( $transient_option ); 1477 } 1478 } 1479 1480 /** 1481 * Filters an existing transient's value. 1482 * 1483 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 1484 * 1485 * @since 2.8.0 1486 * @since 4.4.0 The `$transient` parameter was added 1487 * 1488 * @param mixed $value Value of transient. 1489 * @param string $transient Transient name. 1490 */ 1491 return apply_filters( "transient_{$transient}", $value, $transient ); 1492 } 1493 1494 /** 1495 * Sets/updates the value of a transient. 1496 * 1497 * You do not need to serialize values. If the value needs to be serialized, 1498 * then it will be serialized before it is set. 1499 * 1500 * @since 2.8.0 1501 * 1502 * @param string $transient Transient name. Expected to not be SQL-escaped. 1503 * Must be 172 characters or fewer in length. 1504 * @param mixed $value Transient value. Must be serializable if non-scalar. 1505 * Expected to not be SQL-escaped. 1506 * @param int $expiration Optional. Time until expiration in seconds. Default 0 (no expiration). 1507 * @return bool True if the value was set, false otherwise. 1508 */ 1509 function set_transient( $transient, $value, $expiration = 0 ) { 1510 1511 $expiration = (int) $expiration; 1512 1513 /** 1514 * Filters a specific transient before its value is set. 1515 * 1516 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 1517 * 1518 * @since 3.0.0 1519 * @since 4.2.0 The `$expiration` parameter was added. 1520 * @since 4.4.0 The `$transient` parameter was added. 1521 * 1522 * @param mixed $value New value of transient. 1523 * @param int $expiration Time until expiration in seconds. 1524 * @param string $transient Transient name. 1525 */ 1526 $value = apply_filters( "pre_set_transient_{$transient}", $value, $expiration, $transient ); 1527 1528 /** 1529 * Filters the expiration for a transient before its value is set. 1530 * 1531 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 1532 * 1533 * @since 4.4.0 1534 * 1535 * @param int $expiration Time until expiration in seconds. Use 0 for no expiration. 1536 * @param mixed $value New value of transient. 1537 * @param string $transient Transient name. 1538 */ 1539 $expiration = apply_filters( "expiration_of_transient_{$transient}", $expiration, $value, $transient ); 1540 1541 if ( wp_using_ext_object_cache() || wp_installing() ) { 1542 $result = wp_cache_set( $transient, $value, 'transient', $expiration ); 1543 } else { 1544 $transient_timeout = '_transient_timeout_' . $transient; 1545 $transient_option = '_transient_' . $transient; 1546 wp_prime_option_caches( array( $transient_option, $transient_timeout ) ); 1547 1548 if ( false === get_option( $transient_option ) ) { 1549 $autoload = true; 1550 if ( $expiration ) { 1551 $autoload = false; 1552 add_option( $transient_timeout, time() + $expiration, '', false ); 1553 } 1554 $result = add_option( $transient_option, $value, '', $autoload ); 1555 } else { 1556 /* 1557 * If expiration is requested, but the transient has no timeout option, 1558 * delete, then re-create transient rather than update. 1559 */ 1560 $update = true; 1561 1562 if ( $expiration ) { 1563 if ( false === get_option( $transient_timeout ) ) { 1564 delete_option( $transient_option ); 1565 add_option( $transient_timeout, time() + $expiration, '', false ); 1566 $result = add_option( $transient_option, $value, '', false ); 1567 $update = false; 1568 } else { 1569 update_option( $transient_timeout, time() + $expiration ); 1570 } 1571 } 1572 1573 if ( $update ) { 1574 $result = update_option( $transient_option, $value ); 1575 } 1576 } 1577 } 1578 1579 if ( $result ) { 1580 1581 /** 1582 * Fires after the value for a specific transient has been set. 1583 * 1584 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 1585 * 1586 * @since 3.0.0 1587 * @since 3.6.0 The `$value` and `$expiration` parameters were added. 1588 * @since 4.4.0 The `$transient` parameter was added. 1589 * 1590 * @param mixed $value Transient value. 1591 * @param int $expiration Time until expiration in seconds. 1592 * @param string $transient The name of the transient. 1593 */ 1594 do_action( "set_transient_{$transient}", $value, $expiration, $transient ); 1595 1596 /** 1597 * Fires after the value for a transient has been set. 1598 * 1599 * @since 6.8.0 1600 * 1601 * @param string $transient The name of the transient. 1602 * @param mixed $value Transient value. 1603 * @param int $expiration Time until expiration in seconds. 1604 */ 1605 do_action( 'set_transient', $transient, $value, $expiration ); 1606 1607 /** 1608 * Fires after the transient is set. 1609 * 1610 * @since 3.0.0 1611 * @since 3.6.0 The `$value` and `$expiration` parameters were added. 1612 * @deprecated 6.8.0 Use {@see 'set_transient'} instead. 1613 * 1614 * @param string $transient The name of the transient. 1615 * @param mixed $value Transient value. 1616 * @param int $expiration Time until expiration in seconds. 1617 */ 1618 do_action_deprecated( 'setted_transient', array( $transient, $value, $expiration ), '6.8.0', 'set_transient' ); 1619 } 1620 1621 return $result; 1622 } 1623 1624 /** 1625 * Deletes all expired transients. 1626 * 1627 * Note that this function won't do anything if an external object cache is in use. 1628 * 1629 * The multi-table delete syntax is used to delete the transient record 1630 * from table a, and the corresponding transient_timeout record from table b. 1631 * 1632 * @global wpdb $wpdb WordPress database abstraction object. 1633 * 1634 * @since 4.9.0 1635 * 1636 * @param bool $force_db Optional. Force cleanup to run against the database even when an external object cache is used. 1637 */ 1638 function delete_expired_transients( $force_db = false ) { 1639 global $wpdb; 1640 1641 if ( ! $force_db && wp_using_ext_object_cache() ) { 1642 return; 1643 } 1644 1645 $wpdb->query( 1646 $wpdb->prepare( 1647 "DELETE a, b FROM {$wpdb->options} a, {$wpdb->options} b 1648 WHERE a.option_name LIKE %s 1649 AND a.option_name NOT LIKE %s 1650 AND b.option_name = CONCAT( '_transient_timeout_', SUBSTRING( a.option_name, 12 ) ) 1651 AND b.option_value < %d", 1652 $wpdb->esc_like( '_transient_' ) . '%', 1653 $wpdb->esc_like( '_transient_timeout_' ) . '%', 1654 time() 1655 ) 1656 ); 1657 1658 if ( ! is_multisite() ) { 1659 // Single site stores site transients in the options table. 1660 $wpdb->query( 1661 $wpdb->prepare( 1662 "DELETE a, b FROM {$wpdb->options} a, {$wpdb->options} b 1663 WHERE a.option_name LIKE %s 1664 AND a.option_name NOT LIKE %s 1665 AND b.option_name = CONCAT( '_site_transient_timeout_', SUBSTRING( a.option_name, 17 ) ) 1666 AND b.option_value < %d", 1667 $wpdb->esc_like( '_site_transient_' ) . '%', 1668 $wpdb->esc_like( '_site_transient_timeout_' ) . '%', 1669 time() 1670 ) 1671 ); 1672 } elseif ( is_multisite() && is_main_site() && is_main_network() ) { 1673 // Multisite stores site transients in the sitemeta table. 1674 $wpdb->query( 1675 $wpdb->prepare( 1676 "DELETE a, b FROM {$wpdb->sitemeta} a, {$wpdb->sitemeta} b 1677 WHERE a.meta_key LIKE %s 1678 AND a.meta_key NOT LIKE %s 1679 AND b.meta_key = CONCAT( '_site_transient_timeout_', SUBSTRING( a.meta_key, 17 ) ) 1680 AND b.meta_value < %d", 1681 $wpdb->esc_like( '_site_transient_' ) . '%', 1682 $wpdb->esc_like( '_site_transient_timeout_' ) . '%', 1683 time() 1684 ) 1685 ); 1686 } 1687 } 1688 1689 /** 1690 * Saves and restores user interface settings stored in a cookie. 1691 * 1692 * Checks if the current user-settings cookie is updated and stores it. When no 1693 * cookie exists (different browser used), adds the last saved cookie restoring 1694 * the settings. 1695 * 1696 * @since 2.7.0 1697 */ 1698 function wp_user_settings() { 1699 1700 if ( ! is_admin() || wp_doing_ajax() ) { 1701 return; 1702 } 1703 1704 $user_id = get_current_user_id(); 1705 if ( ! $user_id ) { 1706 return; 1707 } 1708 1709 if ( ! is_user_member_of_blog() ) { 1710 return; 1711 } 1712 1713 $settings = (string) get_user_option( 'user-settings', $user_id ); 1714 1715 if ( isset( $_COOKIE[ 'wp-settings-' . $user_id ] ) ) { 1716 $cookie = preg_replace( '/[^A-Za-z0-9=&_]/', '', $_COOKIE[ 'wp-settings-' . $user_id ] ); 1717 1718 // No change or both empty. 1719 if ( $cookie === $settings ) { 1720 return; 1721 } 1722 1723 $last_saved = (int) get_user_option( 'user-settings-time', $user_id ); 1724 $current = 0; 1725 1726 if ( isset( $_COOKIE[ 'wp-settings-time-' . $user_id ] ) ) { 1727 $current = (int) preg_replace( '/[^0-9]/', '', $_COOKIE[ 'wp-settings-time-' . $user_id ] ); 1728 } 1729 1730 // The cookie is newer than the saved value. Update the user_option and leave the cookie as-is. 1731 if ( $current > $last_saved ) { 1732 update_user_option( $user_id, 'user-settings', $cookie, false ); 1733 update_user_option( $user_id, 'user-settings-time', time() - 5, false ); 1734 return; 1735 } 1736 } 1737 1738 // The cookie is not set in the current browser or the saved value is newer. 1739 $secure = ( 'https' === parse_url( admin_url(), PHP_URL_SCHEME ) ); 1740 setcookie( 'wp-settings-' . $user_id, $settings, time() + YEAR_IN_SECONDS, SITECOOKIEPATH, '', $secure ); 1741 setcookie( 'wp-settings-time-' . $user_id, time(), time() + YEAR_IN_SECONDS, SITECOOKIEPATH, '', $secure ); 1742 $_COOKIE[ 'wp-settings-' . $user_id ] = $settings; 1743 } 1744 1745 /** 1746 * Retrieves user interface setting value based on setting name. 1747 * 1748 * @since 2.7.0 1749 * 1750 * @param string $name The name of the setting. 1751 * @param string|false $default_value Optional. Default value to return when $name is not set. Default false. 1752 * @return mixed The last saved user setting or the default value/false if it doesn't exist. 1753 */ 1754 function get_user_setting( $name, $default_value = false ) { 1755 $all_user_settings = get_all_user_settings(); 1756 1757 return isset( $all_user_settings[ $name ] ) ? $all_user_settings[ $name ] : $default_value; 1758 } 1759 1760 /** 1761 * Adds or updates user interface setting. 1762 * 1763 * Both `$name` and `$value` can contain only ASCII letters, numbers, hyphens, and underscores. 1764 * 1765 * This function has to be used before any output has started as it calls `setcookie()`. 1766 * 1767 * @since 2.8.0 1768 * 1769 * @param string $name The name of the setting. 1770 * @param string $value The value for the setting. 1771 * @return bool|null True if set successfully, false otherwise. 1772 * Null if the current user is not a member of the site. 1773 */ 1774 function set_user_setting( $name, $value ) { 1775 if ( headers_sent() ) { 1776 return false; 1777 } 1778 1779 $all_user_settings = get_all_user_settings(); 1780 $all_user_settings[ $name ] = $value; 1781 1782 return wp_set_all_user_settings( $all_user_settings ); 1783 } 1784 1785 /** 1786 * Deletes user interface settings. 1787 * 1788 * Deleting settings would reset them to the defaults. 1789 * 1790 * This function has to be used before any output has started as it calls `setcookie()`. 1791 * 1792 * @since 2.7.0 1793 * 1794 * @param string $names The name or array of names of the setting to be deleted. 1795 * @return bool|null True if deleted successfully, false otherwise. 1796 * Null if the current user is not a member of the site. 1797 */ 1798 function delete_user_setting( $names ) { 1799 if ( headers_sent() ) { 1800 return false; 1801 } 1802 1803 $all_user_settings = get_all_user_settings(); 1804 $names = (array) $names; 1805 $deleted = false; 1806 1807 foreach ( $names as $name ) { 1808 if ( isset( $all_user_settings[ $name ] ) ) { 1809 unset( $all_user_settings[ $name ] ); 1810 $deleted = true; 1811 } 1812 } 1813 1814 if ( $deleted ) { 1815 return wp_set_all_user_settings( $all_user_settings ); 1816 } 1817 1818 return false; 1819 } 1820 1821 /** 1822 * Retrieves all user interface settings. 1823 * 1824 * @since 2.7.0 1825 * 1826 * @global array $_updated_user_settings 1827 * 1828 * @return array The last saved user settings or empty array. 1829 */ 1830 function get_all_user_settings() { 1831 global $_updated_user_settings; 1832 1833 $user_id = get_current_user_id(); 1834 if ( ! $user_id ) { 1835 return array(); 1836 } 1837 1838 if ( isset( $_updated_user_settings ) && is_array( $_updated_user_settings ) ) { 1839 return $_updated_user_settings; 1840 } 1841 1842 $user_settings = array(); 1843 1844 if ( isset( $_COOKIE[ 'wp-settings-' . $user_id ] ) ) { 1845 $cookie = preg_replace( '/[^A-Za-z0-9=&_-]/', '', $_COOKIE[ 'wp-settings-' . $user_id ] ); 1846 1847 if ( strpos( $cookie, '=' ) ) { // '=' cannot be 1st char. 1848 parse_str( $cookie, $user_settings ); 1849 } 1850 } else { 1851 $option = get_user_option( 'user-settings', $user_id ); 1852 1853 if ( $option && is_string( $option ) ) { 1854 parse_str( $option, $user_settings ); 1855 } 1856 } 1857 1858 $_updated_user_settings = $user_settings; 1859 return $user_settings; 1860 } 1861 1862 /** 1863 * Private. Sets all user interface settings. 1864 * 1865 * @since 2.8.0 1866 * @access private 1867 * 1868 * @global array $_updated_user_settings 1869 * 1870 * @param array $user_settings User settings. 1871 * @return bool|null True if set successfully, false if the current user could not be found. 1872 * Null if the current user is not a member of the site. 1873 */ 1874 function wp_set_all_user_settings( $user_settings ) { 1875 global $_updated_user_settings; 1876 1877 $user_id = get_current_user_id(); 1878 if ( ! $user_id ) { 1879 return false; 1880 } 1881 1882 if ( ! is_user_member_of_blog() ) { 1883 return; 1884 } 1885 1886 $settings = ''; 1887 foreach ( $user_settings as $name => $value ) { 1888 $_name = preg_replace( '/[^A-Za-z0-9_-]+/', '', $name ); 1889 $_value = preg_replace( '/[^A-Za-z0-9_-]+/', '', $value ); 1890 1891 if ( ! empty( $_name ) ) { 1892 $settings .= $_name . '=' . $_value . '&'; 1893 } 1894 } 1895 1896 $settings = rtrim( $settings, '&' ); 1897 parse_str( $settings, $_updated_user_settings ); 1898 1899 update_user_option( $user_id, 'user-settings', $settings, false ); 1900 update_user_option( $user_id, 'user-settings-time', time(), false ); 1901 1902 return true; 1903 } 1904 1905 /** 1906 * Deletes the user settings of the current user. 1907 * 1908 * @since 2.7.0 1909 */ 1910 function delete_all_user_settings() { 1911 $user_id = get_current_user_id(); 1912 if ( ! $user_id ) { 1913 return; 1914 } 1915 1916 update_user_option( $user_id, 'user-settings', '', false ); 1917 setcookie( 'wp-settings-' . $user_id, ' ', time() - YEAR_IN_SECONDS, SITECOOKIEPATH ); 1918 } 1919 1920 /** 1921 * Retrieve an option value for the current network based on name of option. 1922 * 1923 * @since 2.8.0 1924 * @since 4.4.0 The `$use_cache` parameter was deprecated. 1925 * @since 4.4.0 Modified into wrapper for get_network_option() 1926 * 1927 * @see get_network_option() 1928 * 1929 * @param string $option Name of the option to retrieve. Expected to not be SQL-escaped. 1930 * @param mixed $default_value Optional. Value to return if the option doesn't exist. Default false. 1931 * @param bool $deprecated Whether to use cache. Multisite only. Always set to true. 1932 * @return mixed Value set for the option. 1933 */ 1934 function get_site_option( $option, $default_value = false, $deprecated = true ) { 1935 return get_network_option( null, $option, $default_value ); 1936 } 1937 1938 /** 1939 * Adds a new option for the current network. 1940 * 1941 * Existing options will not be updated. Note that prior to 3.3 this wasn't the case. 1942 * 1943 * @since 2.8.0 1944 * @since 4.4.0 Modified into wrapper for add_network_option() 1945 * 1946 * @see add_network_option() 1947 * 1948 * @param string $option Name of the option to add. Expected to not be SQL-escaped. 1949 * @param mixed $value Option value, can be anything. Expected to not be SQL-escaped. 1950 * @return bool True if the option was added, false otherwise. 1951 */ 1952 function add_site_option( $option, $value ) { 1953 return add_network_option( null, $option, $value ); 1954 } 1955 1956 /** 1957 * Removes an option by name for the current network. 1958 * 1959 * @since 2.8.0 1960 * @since 4.4.0 Modified into wrapper for delete_network_option() 1961 * 1962 * @see delete_network_option() 1963 * 1964 * @param string $option Name of the option to delete. Expected to not be SQL-escaped. 1965 * @return bool True if the option was deleted, false otherwise. 1966 */ 1967 function delete_site_option( $option ) { 1968 return delete_network_option( null, $option ); 1969 } 1970 1971 /** 1972 * Updates the value of an option that was already added for the current network. 1973 * 1974 * @since 2.8.0 1975 * @since 4.4.0 Modified into wrapper for update_network_option() 1976 * 1977 * @see update_network_option() 1978 * 1979 * @param string $option Name of the option. Expected to not be SQL-escaped. 1980 * @param mixed $value Option value. Expected to not be SQL-escaped. 1981 * @return bool True if the value was updated, false otherwise. 1982 */ 1983 function update_site_option( $option, $value ) { 1984 return update_network_option( null, $option, $value ); 1985 } 1986 1987 /** 1988 * Retrieves a network's option value based on the option name. 1989 * 1990 * @since 4.4.0 1991 * 1992 * @see get_option() 1993 * 1994 * @global wpdb $wpdb WordPress database abstraction object. 1995 * 1996 * @param int $network_id ID of the network. Can be null to default to the current network ID. 1997 * @param string $option Name of the option to retrieve. Expected to not be SQL-escaped. 1998 * @param mixed $default_value Optional. Value to return if the option doesn't exist. Default false. 1999 * @return mixed Value set for the option. 2000 */ 2001 function get_network_option( $network_id, $option, $default_value = false ) { 2002 global $wpdb; 2003 2004 if ( $network_id && ! is_numeric( $network_id ) ) { 2005 return false; 2006 } 2007 2008 $network_id = (int) $network_id; 2009 2010 // Fallback to the current network if a network ID is not specified. 2011 if ( ! $network_id ) { 2012 $network_id = get_current_network_id(); 2013 } 2014 2015 /** 2016 * Filters the value of an existing network option before it is retrieved. 2017 * 2018 * The dynamic portion of the hook name, `$option`, refers to the option name. 2019 * 2020 * Returning a value other than false from the filter will short-circuit retrieval 2021 * and return that value instead. 2022 * 2023 * @since 2.9.0 As 'pre_site_option_' . $key 2024 * @since 3.0.0 2025 * @since 4.4.0 The `$option` parameter was added. 2026 * @since 4.7.0 The `$network_id` parameter was added. 2027 * @since 4.9.0 The `$default_value` parameter was added. 2028 * 2029 * @param mixed $pre_site_option The value to return instead of the option value. This differs from 2030 * `$default_value`, which is used as the fallback value in the event 2031 * the option doesn't exist elsewhere in get_network_option(). 2032 * Default false (to skip past the short-circuit). 2033 * @param string $option Option name. 2034 * @param int $network_id ID of the network. 2035 * @param mixed $default_value The fallback value to return if the option does not exist. 2036 * Default false. 2037 */ 2038 $pre = apply_filters( "pre_site_option_{$option}", false, $option, $network_id, $default_value ); 2039 2040 if ( false !== $pre ) { 2041 return $pre; 2042 } 2043 2044 // Prevent non-existent options from triggering multiple queries. 2045 $notoptions_key = "$network_id:notoptions"; 2046 $notoptions = wp_cache_get( $notoptions_key, 'site-options' ); 2047 2048 if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) { 2049 2050 /** 2051 * Filters the value of a specific default network option. 2052 * 2053 * The dynamic portion of the hook name, `$option`, refers to the option name. 2054 * 2055 * @since 3.4.0 2056 * @since 4.4.0 The `$option` parameter was added. 2057 * @since 4.7.0 The `$network_id` parameter was added. 2058 * 2059 * @param mixed $default_value The value to return if the site option does not exist 2060 * in the database. 2061 * @param string $option Option name. 2062 * @param int $network_id ID of the network. 2063 */ 2064 return apply_filters( "default_site_option_{$option}", $default_value, $option, $network_id ); 2065 } 2066 2067 if ( ! is_multisite() ) { 2068 /** This filter is documented in wp-includes/option.php */ 2069 $default_value = apply_filters( 'default_site_option_' . $option, $default_value, $option, $network_id ); 2070 $value = get_option( $option, $default_value ); 2071 } else { 2072 $cache_key = "$network_id:$option"; 2073 $value = wp_cache_get( $cache_key, 'site-options' ); 2074 2075 if ( ! isset( $value ) || false === $value ) { 2076 $row = $wpdb->get_row( $wpdb->prepare( "SELECT meta_value FROM $wpdb->sitemeta WHERE meta_key = %s AND site_id = %d", $option, $network_id ) ); 2077 2078 // Has to be get_row() instead of get_var() because of funkiness with 0, false, null values. 2079 if ( is_object( $row ) ) { 2080 $value = $row->meta_value; 2081 $value = maybe_unserialize( $value ); 2082 wp_cache_set( $cache_key, $value, 'site-options' ); 2083 } else { 2084 if ( ! is_array( $notoptions ) ) { 2085 $notoptions = array(); 2086 } 2087 2088 $notoptions[ $option ] = true; 2089 wp_cache_set( $notoptions_key, $notoptions, 'site-options' ); 2090 2091 /** This filter is documented in wp-includes/option.php */ 2092 $value = apply_filters( 'default_site_option_' . $option, $default_value, $option, $network_id ); 2093 } 2094 } 2095 } 2096 2097 if ( ! is_array( $notoptions ) ) { 2098 $notoptions = array(); 2099 wp_cache_set( $notoptions_key, $notoptions, 'site-options' ); 2100 } 2101 2102 /** 2103 * Filters the value of an existing network option. 2104 * 2105 * The dynamic portion of the hook name, `$option`, refers to the option name. 2106 * 2107 * @since 2.9.0 As 'site_option_' . $key 2108 * @since 3.0.0 2109 * @since 4.4.0 The `$option` parameter was added. 2110 * @since 4.7.0 The `$network_id` parameter was added. 2111 * 2112 * @param mixed $value Value of network option. 2113 * @param string $option Option name. 2114 * @param int $network_id ID of the network. 2115 */ 2116 return apply_filters( "site_option_{$option}", $value, $option, $network_id ); 2117 } 2118 2119 /** 2120 * Adds a new network option. 2121 * 2122 * Existing options will not be updated. 2123 * 2124 * @since 4.4.0 2125 * 2126 * @see add_option() 2127 * 2128 * @global wpdb $wpdb WordPress database abstraction object. 2129 * 2130 * @param int $network_id ID of the network. Can be null to default to the current network ID. 2131 * @param string $option Name of the option to add. Expected to not be SQL-escaped. 2132 * @param mixed $value Option value, can be anything. Expected to not be SQL-escaped. 2133 * @return bool True if the option was added, false otherwise. 2134 */ 2135 function add_network_option( $network_id, $option, $value ) { 2136 global $wpdb; 2137 2138 if ( $network_id && ! is_numeric( $network_id ) ) { 2139 return false; 2140 } 2141 2142 $network_id = (int) $network_id; 2143 2144 // Fallback to the current network if a network ID is not specified. 2145 if ( ! $network_id ) { 2146 $network_id = get_current_network_id(); 2147 } 2148 2149 wp_protect_special_option( $option ); 2150 2151 /** 2152 * Filters the value of a specific network option before it is added. 2153 * 2154 * The dynamic portion of the hook name, `$option`, refers to the option name. 2155 * 2156 * @since 2.9.0 As 'pre_add_site_option_' . $key 2157 * @since 3.0.0 2158 * @since 4.4.0 The `$option` parameter was added. 2159 * @since 4.7.0 The `$network_id` parameter was added. 2160 * 2161 * @param mixed $value Value of network option. 2162 * @param string $option Option name. 2163 * @param int $network_id ID of the network. 2164 */ 2165 $value = apply_filters( "pre_add_site_option_{$option}", $value, $option, $network_id ); 2166 2167 $notoptions_key = "$network_id:notoptions"; 2168 2169 if ( ! is_multisite() ) { 2170 $result = add_option( $option, $value, '', false ); 2171 } else { 2172 $cache_key = "$network_id:$option"; 2173 2174 /* 2175 * Make sure the option doesn't already exist. 2176 * We can check the 'notoptions' cache before we ask for a DB query. 2177 */ 2178 $notoptions = wp_cache_get( $notoptions_key, 'site-options' ); 2179 2180 if ( ! is_array( $notoptions ) || ! isset( $notoptions[ $option ] ) ) { 2181 if ( false !== get_network_option( $network_id, $option, false ) ) { 2182 return false; 2183 } 2184 } 2185 2186 $value = sanitize_option( $option, $value ); 2187 2188 $serialized_value = maybe_serialize( $value ); 2189 $result = $wpdb->insert( 2190 $wpdb->sitemeta, 2191 array( 2192 'site_id' => $network_id, 2193 'meta_key' => $option, 2194 'meta_value' => $serialized_value, 2195 ) 2196 ); 2197 2198 if ( ! $result ) { 2199 return false; 2200 } 2201 2202 wp_cache_set( $cache_key, $value, 'site-options' ); 2203 2204 // This option exists now. 2205 $notoptions = wp_cache_get( $notoptions_key, 'site-options' ); // Yes, again... we need it to be fresh. 2206 2207 if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) { 2208 unset( $notoptions[ $option ] ); 2209 wp_cache_set( $notoptions_key, $notoptions, 'site-options' ); 2210 } 2211 } 2212 2213 if ( $result ) { 2214 2215 /** 2216 * Fires after a specific network option has been successfully added. 2217 * 2218 * The dynamic portion of the hook name, `$option`, refers to the option name. 2219 * 2220 * @since 2.9.0 As "add_site_option_{$key}" 2221 * @since 3.0.0 2222 * @since 4.7.0 The `$network_id` parameter was added. 2223 * 2224 * @param string $option Name of the network option. 2225 * @param mixed $value Value of the network option. 2226 * @param int $network_id ID of the network. 2227 */ 2228 do_action( "add_site_option_{$option}", $option, $value, $network_id ); 2229 2230 /** 2231 * Fires after a network option has been successfully added. 2232 * 2233 * @since 3.0.0 2234 * @since 4.7.0 The `$network_id` parameter was added. 2235 * 2236 * @param string $option Name of the network option. 2237 * @param mixed $value Value of the network option. 2238 * @param int $network_id ID of the network. 2239 */ 2240 do_action( 'add_site_option', $option, $value, $network_id ); 2241 2242 return true; 2243 } 2244 2245 return false; 2246 } 2247 2248 /** 2249 * Removes a network option by name. 2250 * 2251 * @since 4.4.0 2252 * 2253 * @see delete_option() 2254 * 2255 * @global wpdb $wpdb WordPress database abstraction object. 2256 * 2257 * @param int $network_id ID of the network. Can be null to default to the current network ID. 2258 * @param string $option Name of the option to delete. Expected to not be SQL-escaped. 2259 * @return bool True if the option was deleted, false otherwise. 2260 */ 2261 function delete_network_option( $network_id, $option ) { 2262 global $wpdb; 2263 2264 if ( $network_id && ! is_numeric( $network_id ) ) { 2265 return false; 2266 } 2267 2268 $network_id = (int) $network_id; 2269 2270 // Fallback to the current network if a network ID is not specified. 2271 if ( ! $network_id ) { 2272 $network_id = get_current_network_id(); 2273 } 2274 2275 /** 2276 * Fires immediately before a specific network option is deleted. 2277 * 2278 * The dynamic portion of the hook name, `$option`, refers to the option name. 2279 * 2280 * @since 3.0.0 2281 * @since 4.4.0 The `$option` parameter was added. 2282 * @since 4.7.0 The `$network_id` parameter was added. 2283 * 2284 * @param string $option Option name. 2285 * @param int $network_id ID of the network. 2286 */ 2287 do_action( "pre_delete_site_option_{$option}", $option, $network_id ); 2288 2289 if ( ! is_multisite() ) { 2290 $result = delete_option( $option ); 2291 } else { 2292 $row = $wpdb->get_row( $wpdb->prepare( "SELECT meta_id FROM {$wpdb->sitemeta} WHERE meta_key = %s AND site_id = %d", $option, $network_id ) ); 2293 if ( is_null( $row ) || ! $row->meta_id ) { 2294 return false; 2295 } 2296 $cache_key = "$network_id:$option"; 2297 wp_cache_delete( $cache_key, 'site-options' ); 2298 2299 $result = $wpdb->delete( 2300 $wpdb->sitemeta, 2301 array( 2302 'meta_key' => $option, 2303 'site_id' => $network_id, 2304 ) 2305 ); 2306 2307 if ( $result ) { 2308 $notoptions_key = "$network_id:notoptions"; 2309 $notoptions = wp_cache_get( $notoptions_key, 'site-options' ); 2310 2311 if ( ! is_array( $notoptions ) ) { 2312 $notoptions = array(); 2313 } 2314 $notoptions[ $option ] = true; 2315 wp_cache_set( $notoptions_key, $notoptions, 'site-options' ); 2316 } 2317 } 2318 2319 if ( $result ) { 2320 2321 /** 2322 * Fires after a specific network option has been deleted. 2323 * 2324 * The dynamic portion of the hook name, `$option`, refers to the option name. 2325 * 2326 * @since 2.9.0 As "delete_site_option_{$key}" 2327 * @since 3.0.0 2328 * @since 4.7.0 The `$network_id` parameter was added. 2329 * 2330 * @param string $option Name of the network option. 2331 * @param int $network_id ID of the network. 2332 */ 2333 do_action( "delete_site_option_{$option}", $option, $network_id ); 2334 2335 /** 2336 * Fires after a network option has been deleted. 2337 * 2338 * @since 3.0.0 2339 * @since 4.7.0 The `$network_id` parameter was added. 2340 * 2341 * @param string $option Name of the network option. 2342 * @param int $network_id ID of the network. 2343 */ 2344 do_action( 'delete_site_option', $option, $network_id ); 2345 2346 return true; 2347 } 2348 2349 return false; 2350 } 2351 2352 /** 2353 * Updates the value of a network option that was already added. 2354 * 2355 * @since 4.4.0 2356 * 2357 * @see update_option() 2358 * 2359 * @global wpdb $wpdb WordPress database abstraction object. 2360 * 2361 * @param int $network_id ID of the network. Can be null to default to the current network ID. 2362 * @param string $option Name of the option. Expected to not be SQL-escaped. 2363 * @param mixed $value Option value. Expected to not be SQL-escaped. 2364 * @return bool True if the value was updated, false otherwise. 2365 */ 2366 function update_network_option( $network_id, $option, $value ) { 2367 global $wpdb; 2368 2369 if ( $network_id && ! is_numeric( $network_id ) ) { 2370 return false; 2371 } 2372 2373 $network_id = (int) $network_id; 2374 2375 // Fallback to the current network if a network ID is not specified. 2376 if ( ! $network_id ) { 2377 $network_id = get_current_network_id(); 2378 } 2379 2380 wp_protect_special_option( $option ); 2381 2382 $old_value = get_network_option( $network_id, $option ); 2383 2384 /** 2385 * Filters a specific network option before its value is updated. 2386 * 2387 * The dynamic portion of the hook name, `$option`, refers to the option name. 2388 * 2389 * @since 2.9.0 As 'pre_update_site_option_' . $key 2390 * @since 3.0.0 2391 * @since 4.4.0 The `$option` parameter was added. 2392 * @since 4.7.0 The `$network_id` parameter was added. 2393 * 2394 * @param mixed $value New value of the network option. 2395 * @param mixed $old_value Old value of the network option. 2396 * @param string $option Option name. 2397 * @param int $network_id ID of the network. 2398 */ 2399 $value = apply_filters( "pre_update_site_option_{$option}", $value, $old_value, $option, $network_id ); 2400 2401 /* 2402 * If the new and old values are the same, no need to update. 2403 * 2404 * Unserialized values will be adequate in most cases. If the unserialized 2405 * data differs, the (maybe) serialized data is checked to avoid 2406 * unnecessary database calls for otherwise identical object instances. 2407 * 2408 * See https://core.trac.wordpress.org/ticket/44956 2409 */ 2410 if ( $value === $old_value || maybe_serialize( $value ) === maybe_serialize( $old_value ) ) { 2411 return false; 2412 } 2413 2414 if ( false === $old_value ) { 2415 return add_network_option( $network_id, $option, $value ); 2416 } 2417 2418 $notoptions_key = "$network_id:notoptions"; 2419 $notoptions = wp_cache_get( $notoptions_key, 'site-options' ); 2420 2421 if ( is_array( $notoptions ) && isset( $notoptions[ $option ] ) ) { 2422 unset( $notoptions[ $option ] ); 2423 wp_cache_set( $notoptions_key, $notoptions, 'site-options' ); 2424 } 2425 2426 if ( ! is_multisite() ) { 2427 $result = update_option( $option, $value, false ); 2428 } else { 2429 $value = sanitize_option( $option, $value ); 2430 2431 $serialized_value = maybe_serialize( $value ); 2432 $result = $wpdb->update( 2433 $wpdb->sitemeta, 2434 array( 'meta_value' => $serialized_value ), 2435 array( 2436 'site_id' => $network_id, 2437 'meta_key' => $option, 2438 ) 2439 ); 2440 2441 if ( $result ) { 2442 $cache_key = "$network_id:$option"; 2443 wp_cache_set( $cache_key, $value, 'site-options' ); 2444 } 2445 } 2446 2447 if ( $result ) { 2448 2449 /** 2450 * Fires after the value of a specific network option has been successfully updated. 2451 * 2452 * The dynamic portion of the hook name, `$option`, refers to the option name. 2453 * 2454 * @since 2.9.0 As "update_site_option_{$key}" 2455 * @since 3.0.0 2456 * @since 4.7.0 The `$network_id` parameter was added. 2457 * 2458 * @param string $option Name of the network option. 2459 * @param mixed $value Current value of the network option. 2460 * @param mixed $old_value Old value of the network option. 2461 * @param int $network_id ID of the network. 2462 */ 2463 do_action( "update_site_option_{$option}", $option, $value, $old_value, $network_id ); 2464 2465 /** 2466 * Fires after the value of a network option has been successfully updated. 2467 * 2468 * @since 3.0.0 2469 * @since 4.7.0 The `$network_id` parameter was added. 2470 * 2471 * @param string $option Name of the network option. 2472 * @param mixed $value Current value of the network option. 2473 * @param mixed $old_value Old value of the network option. 2474 * @param int $network_id ID of the network. 2475 */ 2476 do_action( 'update_site_option', $option, $value, $old_value, $network_id ); 2477 2478 return true; 2479 } 2480 2481 return false; 2482 } 2483 2484 /** 2485 * Deletes a site transient. 2486 * 2487 * @since 2.9.0 2488 * 2489 * @param string $transient Transient name. Expected to not be SQL-escaped. 2490 * @return bool True if the transient was deleted, false otherwise. 2491 */ 2492 function delete_site_transient( $transient ) { 2493 2494 /** 2495 * Fires immediately before a specific site transient is deleted. 2496 * 2497 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 2498 * 2499 * @since 3.0.0 2500 * 2501 * @param string $transient Transient name. 2502 */ 2503 do_action( "delete_site_transient_{$transient}", $transient ); 2504 2505 if ( wp_using_ext_object_cache() || wp_installing() ) { 2506 $result = wp_cache_delete( $transient, 'site-transient' ); 2507 } else { 2508 $option_timeout = '_site_transient_timeout_' . $transient; 2509 $option = '_site_transient_' . $transient; 2510 $result = delete_site_option( $option ); 2511 2512 if ( $result ) { 2513 delete_site_option( $option_timeout ); 2514 } 2515 } 2516 2517 if ( $result ) { 2518 2519 /** 2520 * Fires after a transient is deleted. 2521 * 2522 * @since 3.0.0 2523 * 2524 * @param string $transient Deleted transient name. 2525 */ 2526 do_action( 'deleted_site_transient', $transient ); 2527 } 2528 2529 return $result; 2530 } 2531 2532 /** 2533 * Retrieves the value of a site transient. 2534 * 2535 * If the transient does not exist, does not have a value, or has expired, 2536 * then the return value will be false. 2537 * 2538 * @since 2.9.0 2539 * 2540 * @see get_transient() 2541 * 2542 * @param string $transient Transient name. Expected to not be SQL-escaped. 2543 * @return mixed Value of transient. 2544 */ 2545 function get_site_transient( $transient ) { 2546 2547 /** 2548 * Filters the value of an existing site transient before it is retrieved. 2549 * 2550 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 2551 * 2552 * Returning a value other than boolean false will short-circuit retrieval and 2553 * return that value instead. 2554 * 2555 * @since 2.9.0 2556 * @since 4.4.0 The `$transient` parameter was added. 2557 * 2558 * @param mixed $pre_site_transient The default value to return if the site transient does not exist. 2559 * Any value other than false will short-circuit the retrieval 2560 * of the transient, and return that value. 2561 * @param string $transient Transient name. 2562 */ 2563 $pre = apply_filters( "pre_site_transient_{$transient}", false, $transient ); 2564 2565 if ( false !== $pre ) { 2566 return $pre; 2567 } 2568 2569 if ( wp_using_ext_object_cache() || wp_installing() ) { 2570 $value = wp_cache_get( $transient, 'site-transient' ); 2571 } else { 2572 // Core transients that do not have a timeout. Listed here so querying timeouts can be avoided. 2573 $no_timeout = array( 'update_core', 'update_plugins', 'update_themes' ); 2574 $transient_option = '_site_transient_' . $transient; 2575 if ( ! in_array( $transient, $no_timeout, true ) ) { 2576 $transient_timeout = '_site_transient_timeout_' . $transient; 2577 wp_prime_site_option_caches( array( $transient_option, $transient_timeout ) ); 2578 2579 $timeout = get_site_option( $transient_timeout ); 2580 if ( false !== $timeout && $timeout < time() ) { 2581 delete_site_option( $transient_option ); 2582 delete_site_option( $transient_timeout ); 2583 $value = false; 2584 } 2585 } 2586 2587 if ( ! isset( $value ) ) { 2588 $value = get_site_option( $transient_option ); 2589 } 2590 } 2591 2592 /** 2593 * Filters the value of an existing site transient. 2594 * 2595 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 2596 * 2597 * @since 2.9.0 2598 * @since 4.4.0 The `$transient` parameter was added. 2599 * 2600 * @param mixed $value Value of site transient. 2601 * @param string $transient Transient name. 2602 */ 2603 return apply_filters( "site_transient_{$transient}", $value, $transient ); 2604 } 2605 2606 /** 2607 * Sets/updates the value of a site transient. 2608 * 2609 * You do not need to serialize values. If the value needs to be serialized, 2610 * then it will be serialized before it is set. 2611 * 2612 * @since 2.9.0 2613 * 2614 * @see set_transient() 2615 * 2616 * @param string $transient Transient name. Expected to not be SQL-escaped. Must be 2617 * 167 characters or fewer in length. 2618 * @param mixed $value Transient value. Expected to not be SQL-escaped. 2619 * @param int $expiration Optional. Time until expiration in seconds. Default 0 (no expiration). 2620 * @return bool True if the value was set, false otherwise. 2621 */ 2622 function set_site_transient( $transient, $value, $expiration = 0 ) { 2623 2624 /** 2625 * Filters the value of a specific site transient before it is set. 2626 * 2627 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 2628 * 2629 * @since 3.0.0 2630 * @since 4.4.0 The `$transient` parameter was added. 2631 * 2632 * @param mixed $value New value of site transient. 2633 * @param string $transient Transient name. 2634 */ 2635 $value = apply_filters( "pre_set_site_transient_{$transient}", $value, $transient ); 2636 2637 $expiration = (int) $expiration; 2638 2639 /** 2640 * Filters the expiration for a site transient before its value is set. 2641 * 2642 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 2643 * 2644 * @since 4.4.0 2645 * 2646 * @param int $expiration Time until expiration in seconds. Use 0 for no expiration. 2647 * @param mixed $value New value of site transient. 2648 * @param string $transient Transient name. 2649 */ 2650 $expiration = apply_filters( "expiration_of_site_transient_{$transient}", $expiration, $value, $transient ); 2651 2652 if ( wp_using_ext_object_cache() || wp_installing() ) { 2653 $result = wp_cache_set( $transient, $value, 'site-transient', $expiration ); 2654 } else { 2655 $transient_timeout = '_site_transient_timeout_' . $transient; 2656 $option = '_site_transient_' . $transient; 2657 wp_prime_site_option_caches( array( $option, $transient_timeout ) ); 2658 2659 if ( false === get_site_option( $option ) ) { 2660 if ( $expiration ) { 2661 add_site_option( $transient_timeout, time() + $expiration ); 2662 } 2663 $result = add_site_option( $option, $value ); 2664 } else { 2665 if ( $expiration ) { 2666 update_site_option( $transient_timeout, time() + $expiration ); 2667 } 2668 $result = update_site_option( $option, $value ); 2669 } 2670 } 2671 2672 if ( $result ) { 2673 2674 /** 2675 * Fires after the value for a specific site transient has been set. 2676 * 2677 * The dynamic portion of the hook name, `$transient`, refers to the transient name. 2678 * 2679 * @since 3.0.0 2680 * @since 4.4.0 The `$transient` parameter was added 2681 * 2682 * @param mixed $value Site transient value. 2683 * @param int $expiration Time until expiration in seconds. 2684 * @param string $transient Transient name. 2685 */ 2686 do_action( "set_site_transient_{$transient}", $value, $expiration, $transient ); 2687 2688 /** 2689 * Fires after the value for a site transient has been set. 2690 * 2691 * @since 6.8.0 2692 * 2693 * @param string $transient The name of the site transient. 2694 * @param mixed $value Site transient value. 2695 * @param int $expiration Time until expiration in seconds. 2696 */ 2697 do_action( 'set_site_transient', $transient, $value, $expiration ); 2698 2699 /** 2700 * Fires after the value for a site transient has been set. 2701 * 2702 * @since 3.0.0 2703 * @deprecated 6.8.0 Use {@see 'set_site_transient'} instead. 2704 * 2705 * @param string $transient The name of the site transient. 2706 * @param mixed $value Site transient value. 2707 * @param int $expiration Time until expiration in seconds. 2708 */ 2709 do_action_deprecated( 'setted_site_transient', array( $transient, $value, $expiration ), '6.8.0', 'set_site_transient' ); 2710 } 2711 2712 return $result; 2713 } 2714 2715 /** 2716 * Registers default settings available in WordPress. 2717 * 2718 * The settings registered here are primarily useful for the REST API, so this 2719 * does not encompass all settings available in WordPress. 2720 * 2721 * @since 4.7.0 2722 * @since 6.0.1 The `show_on_front`, `page_on_front`, and `page_for_posts` options were added. 2723 */ 2724 function register_initial_settings() { 2725 register_setting( 2726 'general', 2727 'blogname', 2728 array( 2729 'show_in_rest' => array( 2730 'name' => 'title', 2731 ), 2732 'type' => 'string', 2733 'label' => __( 'Title' ), 2734 'description' => __( 'Site title.' ), 2735 ) 2736 ); 2737 2738 register_setting( 2739 'general', 2740 'blogdescription', 2741 array( 2742 'show_in_rest' => array( 2743 'name' => 'description', 2744 ), 2745 'type' => 'string', 2746 'label' => __( 'Tagline' ), 2747 'description' => __( 'Site tagline.' ), 2748 ) 2749 ); 2750 2751 if ( ! is_multisite() ) { 2752 register_setting( 2753 'general', 2754 'siteurl', 2755 array( 2756 'show_in_rest' => array( 2757 'name' => 'url', 2758 'schema' => array( 2759 'format' => 'uri', 2760 ), 2761 ), 2762 'type' => 'string', 2763 'description' => __( 'Site URL.' ), 2764 ) 2765 ); 2766 } 2767 2768 if ( ! is_multisite() ) { 2769 register_setting( 2770 'general', 2771 'admin_email', 2772 array( 2773 'show_in_rest' => array( 2774 'name' => 'email', 2775 'schema' => array( 2776 'format' => 'email', 2777 ), 2778 ), 2779 'type' => 'string', 2780 'description' => __( 'This address is used for admin purposes, like new user notification.' ), 2781 ) 2782 ); 2783 } 2784 2785 register_setting( 2786 'general', 2787 'timezone_string', 2788 array( 2789 'show_in_rest' => array( 2790 'name' => 'timezone', 2791 ), 2792 'type' => 'string', 2793 'description' => __( 'A city in the same timezone as you.' ), 2794 ) 2795 ); 2796 2797 register_setting( 2798 'general', 2799 'date_format', 2800 array( 2801 'show_in_rest' => true, 2802 'type' => 'string', 2803 'description' => __( 'A date format for all date strings.' ), 2804 ) 2805 ); 2806 2807 register_setting( 2808 'general', 2809 'time_format', 2810 array( 2811 'show_in_rest' => true, 2812 'type' => 'string', 2813 'description' => __( 'A time format for all time strings.' ), 2814 ) 2815 ); 2816 2817 register_setting( 2818 'general', 2819 'start_of_week', 2820 array( 2821 'show_in_rest' => true, 2822 'type' => 'integer', 2823 'description' => __( 'A day number of the week that the week should start on.' ), 2824 ) 2825 ); 2826 2827 register_setting( 2828 'general', 2829 'WPLANG', 2830 array( 2831 'show_in_rest' => array( 2832 'name' => 'language', 2833 ), 2834 'type' => 'string', 2835 'description' => __( 'WordPress locale code.' ), 2836 'default' => 'en_US', 2837 ) 2838 ); 2839 2840 register_setting( 2841 'writing', 2842 'use_smilies', 2843 array( 2844 'show_in_rest' => true, 2845 'type' => 'boolean', 2846 'description' => __( 'Convert emoticons like :-) and :-P to graphics on display.' ), 2847 'default' => true, 2848 ) 2849 ); 2850 2851 register_setting( 2852 'writing', 2853 'default_category', 2854 array( 2855 'show_in_rest' => true, 2856 'type' => 'integer', 2857 'description' => __( 'Default post category.' ), 2858 ) 2859 ); 2860 2861 register_setting( 2862 'writing', 2863 'default_post_format', 2864 array( 2865 'show_in_rest' => true, 2866 'type' => 'string', 2867 'description' => __( 'Default post format.' ), 2868 ) 2869 ); 2870 2871 register_setting( 2872 'reading', 2873 'posts_per_page', 2874 array( 2875 'show_in_rest' => true, 2876 'type' => 'integer', 2877 'label' => __( 'Maximum posts per page' ), 2878 'description' => __( 'Blog pages show at most.' ), 2879 'default' => 10, 2880 ) 2881 ); 2882 2883 register_setting( 2884 'reading', 2885 'show_on_front', 2886 array( 2887 'show_in_rest' => true, 2888 'type' => 'string', 2889 'label' => __( 'Show on front' ), 2890 'description' => __( 'What to show on the front page' ), 2891 ) 2892 ); 2893 2894 register_setting( 2895 'reading', 2896 'page_on_front', 2897 array( 2898 'show_in_rest' => true, 2899 'type' => 'integer', 2900 'label' => __( 'Page on front' ), 2901 'description' => __( 'The ID of the page that should be displayed on the front page' ), 2902 ) 2903 ); 2904 2905 register_setting( 2906 'reading', 2907 'page_for_posts', 2908 array( 2909 'show_in_rest' => true, 2910 'type' => 'integer', 2911 'description' => __( 'The ID of the page that should display the latest posts' ), 2912 ) 2913 ); 2914 2915 register_setting( 2916 'discussion', 2917 'default_ping_status', 2918 array( 2919 'show_in_rest' => array( 2920 'schema' => array( 2921 'enum' => array( 'open', 'closed' ), 2922 ), 2923 ), 2924 'type' => 'string', 2925 'description' => __( 'Allow link notifications from other blogs (pingbacks and trackbacks) on new articles.' ), 2926 ) 2927 ); 2928 2929 register_setting( 2930 'discussion', 2931 'default_comment_status', 2932 array( 2933 'show_in_rest' => array( 2934 'schema' => array( 2935 'enum' => array( 'open', 'closed' ), 2936 ), 2937 ), 2938 'type' => 'string', 2939 'label' => __( 'Allow comments on new posts' ), 2940 'description' => __( 'Allow people to submit comments on new posts.' ), 2941 ) 2942 ); 2943 } 2944 2945 /** 2946 * Registers a setting and its data. 2947 * 2948 * @since 2.7.0 2949 * @since 3.0.0 The `misc` option group was deprecated. 2950 * @since 3.5.0 The `privacy` option group was deprecated. 2951 * @since 4.7.0 `$args` can be passed to set flags on the setting, similar to `register_meta()`. 2952 * @since 5.5.0 `$new_whitelist_options` was renamed to `$new_allowed_options`. 2953 * Please consider writing more inclusive code. 2954 * @since 6.6.0 Added the `label` argument. 2955 * 2956 * @global array $new_allowed_options 2957 * @global array $wp_registered_settings 2958 * 2959 * @param string $option_group A settings group name. Should correspond to an allowed option key name. 2960 * Default allowed option key names include 'general', 'discussion', 'media', 2961 * 'reading', 'writing', and 'options'. 2962 * @param string $option_name The name of an option to sanitize and save. 2963 * @param array $args { 2964 * Data used to describe the setting when registered. 2965 * 2966 * @type string $type The type of data associated with this setting. 2967 * Valid values are 'string', 'boolean', 'integer', 'number', 'array', and 'object'. 2968 * @type string $label A label of the data attached to this setting. 2969 * @type string $description A description of the data attached to this setting. 2970 * @type callable $sanitize_callback A callback function that sanitizes the option's value. 2971 * @type bool|array $show_in_rest Whether data associated with this setting should be included in the REST API. 2972 * When registering complex settings, this argument may optionally be an 2973 * array with a 'schema' key. 2974 * @type mixed $default Default value when calling `get_option()`. 2975 * } 2976 */ 2977 function register_setting( $option_group, $option_name, $args = array() ) { 2978 global $new_allowed_options, $wp_registered_settings; 2979 2980 /* 2981 * In 5.5.0, the `$new_whitelist_options` global variable was renamed to `$new_allowed_options`. 2982 * Please consider writing more inclusive code. 2983 */ 2984 $GLOBALS['new_whitelist_options'] = &$new_allowed_options; 2985 2986 $defaults = array( 2987 'type' => 'string', 2988 'group' => $option_group, 2989 'label' => '', 2990 'description' => '', 2991 'sanitize_callback' => null, 2992 'show_in_rest' => false, 2993 ); 2994 2995 // Back-compat: old sanitize callback is added. 2996 if ( is_callable( $args ) ) { 2997 $args = array( 2998 'sanitize_callback' => $args, 2999 ); 3000 } 3001 3002 /** 3003 * Filters the registration arguments when registering a setting. 3004 * 3005 * @since 4.7.0 3006 * 3007 * @param array $args Array of setting registration arguments. 3008 * @param array $defaults Array of default arguments. 3009 * @param string $option_group Setting group. 3010 * @param string $option_name Setting name. 3011 */ 3012 $args = apply_filters( 'register_setting_args', $args, $defaults, $option_group, $option_name ); 3013 3014 $args = wp_parse_args( $args, $defaults ); 3015 3016 // Require an item schema when registering settings with an array type. 3017 if ( false !== $args['show_in_rest'] && 'array' === $args['type'] && ( ! is_array( $args['show_in_rest'] ) || ! isset( $args['show_in_rest']['schema']['items'] ) ) ) { 3018 _doing_it_wrong( __FUNCTION__, __( 'When registering an "array" setting to show in the REST API, you must specify the schema for each array item in "show_in_rest.schema.items".' ), '5.4.0' ); 3019 } 3020 3021 if ( ! is_array( $wp_registered_settings ) ) { 3022 $wp_registered_settings = array(); 3023 } 3024 3025 if ( 'misc' === $option_group ) { 3026 _deprecated_argument( 3027 __FUNCTION__, 3028 '3.0.0', 3029 sprintf( 3030 /* translators: %s: misc */ 3031 __( 'The "%s" options group has been removed. Use another settings group.' ), 3032 'misc' 3033 ) 3034 ); 3035 $option_group = 'general'; 3036 } 3037 3038 if ( 'privacy' === $option_group ) { 3039 _deprecated_argument( 3040 __FUNCTION__, 3041 '3.5.0', 3042 sprintf( 3043 /* translators: %s: privacy */ 3044 __( 'The "%s" options group has been removed. Use another settings group.' ), 3045 'privacy' 3046 ) 3047 ); 3048 $option_group = 'reading'; 3049 } 3050 3051 $new_allowed_options[ $option_group ][] = $option_name; 3052 3053 if ( ! empty( $args['sanitize_callback'] ) ) { 3054 add_filter( "sanitize_option_{$option_name}", $args['sanitize_callback'] ); 3055 } 3056 if ( array_key_exists( 'default', $args ) ) { 3057 add_filter( "default_option_{$option_name}", 'filter_default_option', 10, 3 ); 3058 } 3059 3060 /** 3061 * Fires immediately before the setting is registered but after its filters are in place. 3062 * 3063 * @since 5.5.0 3064 * 3065 * @param string $option_group Setting group. 3066 * @param string $option_name Setting name. 3067 * @param array $args Array of setting registration arguments. 3068 */ 3069 do_action( 'register_setting', $option_group, $option_name, $args ); 3070 3071 $wp_registered_settings[ $option_name ] = $args; 3072 } 3073 3074 /** 3075 * Unregisters a setting. 3076 * 3077 * @since 2.7.0 3078 * @since 4.7.0 `$sanitize_callback` was deprecated. The callback from `register_setting()` is now used instead. 3079 * @since 5.5.0 `$new_whitelist_options` was renamed to `$new_allowed_options`. 3080 * Please consider writing more inclusive code. 3081 * 3082 * @global array $new_allowed_options 3083 * @global array $wp_registered_settings 3084 * 3085 * @param string $option_group The settings group name used during registration. 3086 * @param string $option_name The name of the option to unregister. 3087 * @param callable $deprecated Optional. Deprecated. 3088 */ 3089 function unregister_setting( $option_group, $option_name, $deprecated = '' ) { 3090 global $new_allowed_options, $wp_registered_settings; 3091 3092 /* 3093 * In 5.5.0, the `$new_whitelist_options` global variable was renamed to `$new_allowed_options`. 3094 * Please consider writing more inclusive code. 3095 */ 3096 $GLOBALS['new_whitelist_options'] = &$new_allowed_options; 3097 3098 if ( 'misc' === $option_group ) { 3099 _deprecated_argument( 3100 __FUNCTION__, 3101 '3.0.0', 3102 sprintf( 3103 /* translators: %s: misc */ 3104 __( 'The "%s" options group has been removed. Use another settings group.' ), 3105 'misc' 3106 ) 3107 ); 3108 $option_group = 'general'; 3109 } 3110 3111 if ( 'privacy' === $option_group ) { 3112 _deprecated_argument( 3113 __FUNCTION__, 3114 '3.5.0', 3115 sprintf( 3116 /* translators: %s: privacy */ 3117 __( 'The "%s" options group has been removed. Use another settings group.' ), 3118 'privacy' 3119 ) 3120 ); 3121 $option_group = 'reading'; 3122 } 3123 3124 $pos = false; 3125 if ( isset( $new_allowed_options[ $option_group ] ) ) { 3126 $pos = array_search( $option_name, (array) $new_allowed_options[ $option_group ], true ); 3127 } 3128 3129 if ( false !== $pos ) { 3130 unset( $new_allowed_options[ $option_group ][ $pos ] ); 3131 } 3132 3133 if ( '' !== $deprecated ) { 3134 _deprecated_argument( 3135 __FUNCTION__, 3136 '4.7.0', 3137 sprintf( 3138 /* translators: 1: $sanitize_callback, 2: register_setting() */ 3139 __( '%1$s is deprecated. The callback from %2$s is used instead.' ), 3140 '<code>$sanitize_callback</code>', 3141 '<code>register_setting()</code>' 3142 ) 3143 ); 3144 remove_filter( "sanitize_option_{$option_name}", $deprecated ); 3145 } 3146 3147 if ( isset( $wp_registered_settings[ $option_name ] ) ) { 3148 // Remove the sanitize callback if one was set during registration. 3149 if ( ! empty( $wp_registered_settings[ $option_name ]['sanitize_callback'] ) ) { 3150 remove_filter( "sanitize_option_{$option_name}", $wp_registered_settings[ $option_name ]['sanitize_callback'] ); 3151 } 3152 3153 // Remove the default filter if a default was provided during registration. 3154 if ( array_key_exists( 'default', $wp_registered_settings[ $option_name ] ) ) { 3155 remove_filter( "default_option_{$option_name}", 'filter_default_option', 10 ); 3156 } 3157 3158 /** 3159 * Fires immediately before the setting is unregistered and after its filters have been removed. 3160 * 3161 * @since 5.5.0 3162 * 3163 * @param string $option_group Setting group. 3164 * @param string $option_name Setting name. 3165 */ 3166 do_action( 'unregister_setting', $option_group, $option_name ); 3167 3168 unset( $wp_registered_settings[ $option_name ] ); 3169 } 3170 } 3171 3172 /** 3173 * Retrieves an array of registered settings. 3174 * 3175 * @since 4.7.0 3176 * 3177 * @global array $wp_registered_settings 3178 * 3179 * @return array List of registered settings, keyed by option name. 3180 */ 3181 function get_registered_settings() { 3182 global $wp_registered_settings; 3183 3184 if ( ! is_array( $wp_registered_settings ) ) { 3185 return array(); 3186 } 3187 3188 return $wp_registered_settings; 3189 } 3190 3191 /** 3192 * Filters the default value for the option. 3193 * 3194 * For settings which register a default setting in `register_setting()`, this 3195 * function is added as a filter to `default_option_{$option}`. 3196 * 3197 * @since 4.7.0 3198 * 3199 * @param mixed $default_value Existing default value to return. 3200 * @param string $option Option name. 3201 * @param bool $passed_default Was `get_option()` passed a default value? 3202 * @return mixed Filtered default value. 3203 */ 3204 function filter_default_option( $default_value, $option, $passed_default ) { 3205 if ( $passed_default ) { 3206 return $default_value; 3207 } 3208 3209 $registered = get_registered_settings(); 3210 if ( empty( $registered[ $option ] ) ) { 3211 return $default_value; 3212 } 3213 3214 return $registered[ $option ]['default']; 3215 } 3216 3217 /** 3218 * Returns the values that trigger autoloading from the options table. 3219 * 3220 * @since 6.6.0 3221 * 3222 * @return string[] The values that trigger autoloading. 3223 */ 3224 function wp_autoload_values_to_autoload() { 3225 $autoload_values = array( 'yes', 'on', 'auto-on', 'auto' ); 3226 3227 /** 3228 * Filters the autoload values that should be considered for autoloading from the options table. 3229 * 3230 * The filter can only be used to remove autoload values from the default list. 3231 * 3232 * @since 6.6.0 3233 * 3234 * @param string[] $autoload_values Autoload values used to autoload option. 3235 * Default list contains 'yes', 'on', 'auto-on', and 'auto'. 3236 */ 3237 $filtered_values = apply_filters( 'wp_autoload_values_to_autoload', $autoload_values ); 3238 3239 return array_intersect( $filtered_values, $autoload_values ); 3240 }
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