| [ Index ] |
PHP Cross Reference of WordPress Trunk (Updated Daily) |
[Summary view] [Print] [Text view]
1 <?php 2 /** 3 * WordPress environment setup class. 4 * 5 * @package WordPress 6 * @since 2.0.0 7 */ 8 #[AllowDynamicProperties] 9 class WP { 10 /** 11 * Public query variables. 12 * 13 * Long list of public query variables. 14 * 15 * @since 2.0.0 16 * @var string[] 17 */ 18 public $public_query_vars = array( 'm', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'feed', 'author_name', 'pagename', 'page_id', 'error', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots', 'favicon', 'taxonomy', 'term', 'cpage', 'post_type', 'embed' ); 19 20 /** 21 * Private query variables. 22 * 23 * Long list of private query variables. 24 * 25 * @since 2.0.0 26 * @var string[] 27 */ 28 public $private_query_vars = array( 'offset', 'posts_per_page', 'posts_per_archive_page', 'showposts', 'nopaging', 'post_type', 'post_status', 'category__in', 'category__not_in', 'category__and', 'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'tag_id', 'post_mime_type', 'perm', 'comments_per_page', 'post__in', 'post__not_in', 'post_parent', 'post_parent__in', 'post_parent__not_in', 'title', 'fields' ); 29 30 /** 31 * Extra query variables set by the user. 32 * 33 * @since 2.1.0 34 * @var array 35 */ 36 public $extra_query_vars = array(); 37 38 /** 39 * Query variables for setting up the WordPress Query Loop. 40 * 41 * @since 2.0.0 42 * @var array 43 */ 44 public $query_vars = array(); 45 46 /** 47 * String parsed to set the query variables. 48 * 49 * @since 2.0.0 50 * @var string 51 */ 52 public $query_string = ''; 53 54 /** 55 * The request path, e.g. 2015/05/06. 56 * 57 * @since 2.0.0 58 * @var string 59 */ 60 public $request = ''; 61 62 /** 63 * Rewrite rule the request matched. 64 * 65 * @since 2.0.0 66 * @var string 67 */ 68 public $matched_rule = ''; 69 70 /** 71 * Rewrite query the request matched. 72 * 73 * @since 2.0.0 74 * @var string 75 */ 76 public $matched_query = ''; 77 78 /** 79 * Whether already did the permalink. 80 * 81 * @since 2.0.0 82 * @var bool 83 */ 84 public $did_permalink = false; 85 86 /** 87 * Adds a query variable to the list of public query variables. 88 * 89 * @since 2.1.0 90 * 91 * @param string $qv Query variable name. 92 */ 93 public function add_query_var( $qv ) { 94 if ( ! in_array( $qv, $this->public_query_vars, true ) ) { 95 $this->public_query_vars[] = $qv; 96 } 97 } 98 99 /** 100 * Removes a query variable from a list of public query variables. 101 * 102 * @since 4.5.0 103 * 104 * @param string $name Query variable name. 105 */ 106 public function remove_query_var( $name ) { 107 $this->public_query_vars = array_diff( $this->public_query_vars, array( $name ) ); 108 } 109 110 /** 111 * Sets the value of a query variable. 112 * 113 * @since 2.3.0 114 * 115 * @param string $key Query variable name. 116 * @param mixed $value Query variable value. 117 */ 118 public function set_query_var( $key, $value ) { 119 $this->query_vars[ $key ] = $value; 120 } 121 122 /** 123 * Parses the request to find the correct WordPress query. 124 * 125 * Sets up the query variables based on the request. There are also many 126 * filters and actions that can be used to further manipulate the result. 127 * 128 * @since 2.0.0 129 * @since 6.0.0 A return value was added. 130 * 131 * @global WP_Rewrite $wp_rewrite WordPress rewrite component. 132 * 133 * @param array|string $extra_query_vars Set the extra query variables. 134 * @return bool Whether the request was parsed. 135 */ 136 public function parse_request( $extra_query_vars = '' ) { 137 global $wp_rewrite; 138 139 /** 140 * Filters whether to parse the request. 141 * 142 * @since 3.5.0 143 * 144 * @param bool $bool Whether or not to parse the request. Default true. 145 * @param WP $wp Current WordPress environment instance. 146 * @param array|string $extra_query_vars Extra passed query variables. 147 */ 148 if ( ! apply_filters( 'do_parse_request', true, $this, $extra_query_vars ) ) { 149 return false; 150 } 151 152 $this->query_vars = array(); 153 $post_type_query_vars = array(); 154 155 if ( is_array( $extra_query_vars ) ) { 156 $this->extra_query_vars = & $extra_query_vars; 157 } elseif ( ! empty( $extra_query_vars ) ) { 158 parse_str( $extra_query_vars, $this->extra_query_vars ); 159 } 160 // Process PATH_INFO, REQUEST_URI, and 404 for permalinks. 161 162 // Fetch the rewrite rules. 163 $rewrite = $wp_rewrite->wp_rewrite_rules(); 164 165 if ( ! empty( $rewrite ) ) { 166 // If we match a rewrite rule, this will be cleared. 167 $error = '404'; 168 $this->did_permalink = true; 169 170 $pathinfo = $_SERVER['PATH_INFO'] ?? ''; 171 list( $pathinfo ) = explode( '?', $pathinfo ); 172 $pathinfo = str_replace( '%', '%25', $pathinfo ); 173 174 list( $req_uri ) = explode( '?', $_SERVER['REQUEST_URI'] ); 175 $self = $_SERVER['PHP_SELF']; 176 177 $home_path = parse_url( home_url(), PHP_URL_PATH ); 178 $home_path_regex = ''; 179 if ( is_string( $home_path ) && '' !== $home_path ) { 180 $home_path = trim( $home_path, '/' ); 181 $home_path_regex = sprintf( '|^%s|i', preg_quote( $home_path, '|' ) ); 182 } 183 184 /* 185 * Trim path info from the end and the leading home path from the front. 186 * For path info requests, this leaves us with the requesting filename, if any. 187 * For 404 requests, this leaves us with the requested permalink. 188 */ 189 $req_uri = str_replace( $pathinfo, '', $req_uri ); 190 $req_uri = trim( $req_uri, '/' ); 191 $pathinfo = trim( $pathinfo, '/' ); 192 $self = trim( $self, '/' ); 193 194 if ( ! empty( $home_path_regex ) ) { 195 $req_uri = preg_replace( $home_path_regex, '', $req_uri ); 196 $req_uri = trim( $req_uri, '/' ); 197 $pathinfo = preg_replace( $home_path_regex, '', $pathinfo ); 198 $pathinfo = trim( $pathinfo, '/' ); 199 $self = preg_replace( $home_path_regex, '', $self ); 200 $self = trim( $self, '/' ); 201 } 202 203 // The requested permalink is in $pathinfo for path info requests and $req_uri for other requests. 204 if ( ! empty( $pathinfo ) && ! preg_match( '|^.*' . $wp_rewrite->index . '$|', $pathinfo ) ) { 205 $requested_path = $pathinfo; 206 } else { 207 // If the request uri is the index, blank it out so that we don't try to match it against a rule. 208 if ( $req_uri === $wp_rewrite->index ) { 209 $req_uri = ''; 210 } 211 212 $requested_path = $req_uri; 213 } 214 215 $requested_file = $req_uri; 216 217 $this->request = $requested_path; 218 219 // Look for matches. 220 $request_match = $requested_path; 221 if ( empty( $request_match ) ) { 222 // An empty request could only match against ^$ regex. 223 if ( isset( $rewrite['$'] ) ) { 224 $this->matched_rule = '$'; 225 $query = $rewrite['$']; 226 $matches = array( '' ); 227 } 228 } else { 229 foreach ( (array) $rewrite as $match => $query ) { 230 // If the requested file is the anchor of the match, prepend it to the path info. 231 if ( ! empty( $requested_file ) 232 && str_starts_with( $match, $requested_file ) 233 && $requested_file !== $requested_path 234 ) { 235 $request_match = $requested_file . '/' . $requested_path; 236 } 237 238 if ( preg_match( "#^$match#", $request_match, $matches ) 239 || preg_match( "#^$match#", urldecode( $request_match ), $matches ) 240 ) { 241 242 if ( $wp_rewrite->use_verbose_page_rules 243 && preg_match( '/pagename=\$matches\[([0-9]+)\]/', $query, $varmatch ) 244 ) { 245 // This is a verbose page match, let's check to be sure about it. 246 $page = get_page_by_path( $matches[ $varmatch[1] ] ); 247 248 if ( ! $page ) { 249 continue; 250 } 251 252 $post_status_obj = get_post_status_object( $page->post_status ); 253 254 if ( ! $post_status_obj->public && ! $post_status_obj->protected 255 && ! $post_status_obj->private && $post_status_obj->exclude_from_search 256 ) { 257 continue; 258 } 259 } 260 261 // Got a match. 262 $this->matched_rule = $match; 263 break; 264 } 265 } 266 } 267 268 if ( ! empty( $this->matched_rule ) ) { 269 // Trim the query of everything up to the '?'. 270 $query = preg_replace( '!^.+\?!', '', $query ); 271 272 // Substitute the substring matches into the query. 273 $query = addslashes( WP_MatchesMapRegex::apply( $query, $matches ) ); 274 275 $this->matched_query = $query; 276 277 // Parse the query. 278 parse_str( $query, $perma_query_vars ); 279 280 // Clear the 404 error var since we found something. 281 unset( $error, $_GET['error'] ); 282 } 283 284 // If req_uri is empty or if it is a request for ourself, unset error. 285 if ( empty( $requested_path ) || $requested_file === $self 286 || str_contains( $_SERVER['PHP_SELF'], 'wp-admin/' ) 287 ) { 288 unset( $error, $_GET['error'] ); 289 290 if ( isset( $perma_query_vars ) && str_contains( $_SERVER['PHP_SELF'], 'wp-admin/' ) ) { 291 unset( $perma_query_vars ); 292 } 293 294 $this->did_permalink = false; 295 } 296 } 297 298 /** 299 * Filters the query variables allowed before processing. 300 * 301 * Allows (publicly allowed) query vars to be added, removed, or changed prior 302 * to executing the query. Needed to allow custom rewrite rules using your own arguments 303 * to work, or any other custom query variables you want to be publicly available. 304 * 305 * @since 1.5.0 306 * 307 * @param string[] $public_query_vars The array of allowed query variable names. 308 */ 309 $this->public_query_vars = apply_filters( 'query_vars', $this->public_query_vars ); 310 311 foreach ( get_post_types( array(), 'objects' ) as $post_type => $t ) { 312 if ( is_post_type_viewable( $t ) && $t->query_var ) { 313 $post_type_query_vars[ $t->query_var ] = $post_type; 314 } 315 } 316 317 foreach ( $this->public_query_vars as $wpvar ) { 318 if ( isset( $this->extra_query_vars[ $wpvar ] ) ) { 319 $this->query_vars[ $wpvar ] = $this->extra_query_vars[ $wpvar ]; 320 } elseif ( isset( $_GET[ $wpvar ] ) && isset( $_POST[ $wpvar ] ) 321 && $_GET[ $wpvar ] !== $_POST[ $wpvar ] 322 ) { 323 wp_die( 324 __( 'A variable mismatch has been detected.' ), 325 __( 'Sorry, you are not allowed to view this item.' ), 326 400 327 ); 328 } elseif ( isset( $_POST[ $wpvar ] ) ) { 329 $this->query_vars[ $wpvar ] = $_POST[ $wpvar ]; 330 } elseif ( isset( $_GET[ $wpvar ] ) ) { 331 $this->query_vars[ $wpvar ] = $_GET[ $wpvar ]; 332 } elseif ( isset( $perma_query_vars[ $wpvar ] ) ) { 333 $this->query_vars[ $wpvar ] = $perma_query_vars[ $wpvar ]; 334 } 335 336 if ( ! empty( $this->query_vars[ $wpvar ] ) ) { 337 if ( ! is_array( $this->query_vars[ $wpvar ] ) ) { 338 $this->query_vars[ $wpvar ] = (string) $this->query_vars[ $wpvar ]; 339 } else { 340 foreach ( $this->query_vars[ $wpvar ] as $vkey => $v ) { 341 if ( is_scalar( $v ) ) { 342 $this->query_vars[ $wpvar ][ $vkey ] = (string) $v; 343 } 344 } 345 } 346 347 if ( isset( $post_type_query_vars[ $wpvar ] ) ) { 348 $this->query_vars['post_type'] = $post_type_query_vars[ $wpvar ]; 349 $this->query_vars['name'] = $this->query_vars[ $wpvar ]; 350 } 351 } 352 } 353 354 // Convert urldecoded spaces back into '+'. 355 foreach ( get_taxonomies( array(), 'objects' ) as $taxonomy => $t ) { 356 if ( $t->query_var && isset( $this->query_vars[ $t->query_var ] ) ) { 357 $this->query_vars[ $t->query_var ] = str_replace( ' ', '+', $this->query_vars[ $t->query_var ] ); 358 } 359 } 360 361 // Don't allow non-publicly queryable taxonomies to be queried from the front end. 362 if ( ! is_admin() ) { 363 foreach ( get_taxonomies( array( 'publicly_queryable' => false ), 'objects' ) as $taxonomy => $t ) { 364 /* 365 * Disallow when set to the 'taxonomy' query var. 366 * Non-publicly queryable taxonomies cannot register custom query vars. See register_taxonomy(). 367 */ 368 if ( isset( $this->query_vars['taxonomy'] ) && $taxonomy === $this->query_vars['taxonomy'] ) { 369 unset( $this->query_vars['taxonomy'], $this->query_vars['term'] ); 370 } 371 } 372 } 373 374 // Limit publicly queried post_types to those that are 'publicly_queryable'. 375 if ( isset( $this->query_vars['post_type'] ) ) { 376 $queryable_post_types = get_post_types( array( 'publicly_queryable' => true ) ); 377 378 if ( ! is_array( $this->query_vars['post_type'] ) ) { 379 if ( ! in_array( $this->query_vars['post_type'], $queryable_post_types, true ) ) { 380 unset( $this->query_vars['post_type'] ); 381 } 382 } else { 383 $this->query_vars['post_type'] = array_intersect( $this->query_vars['post_type'], $queryable_post_types ); 384 } 385 } 386 387 // Resolve conflicts between posts with numeric slugs and date archive queries. 388 $this->query_vars = wp_resolve_numeric_slug_conflicts( $this->query_vars ); 389 390 foreach ( (array) $this->private_query_vars as $var ) { 391 if ( isset( $this->extra_query_vars[ $var ] ) ) { 392 $this->query_vars[ $var ] = $this->extra_query_vars[ $var ]; 393 } 394 } 395 396 if ( isset( $error ) ) { 397 $this->query_vars['error'] = $error; 398 } 399 400 /** 401 * Filters the array of parsed query variables. 402 * 403 * @since 2.1.0 404 * 405 * @param array $query_vars The array of requested query variables. 406 */ 407 $this->query_vars = apply_filters( 'request', $this->query_vars ); 408 409 /** 410 * Fires once all query variables for the current request have been parsed. 411 * 412 * @since 2.1.0 413 * 414 * @param WP $wp Current WordPress environment instance (passed by reference). 415 */ 416 do_action_ref_array( 'parse_request', array( &$this ) ); 417 418 return true; 419 } 420 421 /** 422 * Sends additional HTTP headers for caching, content type, etc. 423 * 424 * Sets the Content-Type header. Sets the 'error' status (if passed) and optionally exits. 425 * If showing a feed, it will also send Last-Modified, ETag, and 304 status if needed. 426 * 427 * @since 2.0.0 428 * @since 4.4.0 `X-Pingback` header is added conditionally for single posts that allow pings. 429 * @since 6.1.0 Runs after posts have been queried. 430 * 431 * @global WP_Query $wp_query WordPress Query object. 432 */ 433 public function send_headers() { 434 global $wp_query; 435 436 $headers = array(); 437 $status = null; 438 $exit_required = false; 439 $date_format = 'D, d M Y H:i:s'; 440 441 if ( is_user_logged_in() ) { 442 $headers = array_merge( $headers, wp_get_nocache_headers() ); 443 } elseif ( ! empty( $_GET['unapproved'] ) && ! empty( $_GET['moderation-hash'] ) ) { 444 // Unmoderated comments are only visible for 10 minutes via the moderation hash. 445 $expires = 10 * MINUTE_IN_SECONDS; 446 447 $headers['Expires'] = gmdate( $date_format, time() + $expires ); 448 $headers['Cache-Control'] = sprintf( 449 'max-age=%d, must-revalidate', 450 $expires 451 ); 452 } 453 if ( ! empty( $this->query_vars['error'] ) ) { 454 $status = (int) $this->query_vars['error']; 455 456 if ( 404 === $status ) { 457 if ( ! is_user_logged_in() ) { 458 $headers = array_merge( $headers, wp_get_nocache_headers() ); 459 } 460 461 $headers['Content-Type'] = get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' ); 462 } elseif ( in_array( $status, array( 403, 500, 502, 503 ), true ) ) { 463 $exit_required = true; 464 } 465 } elseif ( empty( $this->query_vars['feed'] ) ) { 466 $headers['Content-Type'] = get_option( 'html_type' ) . '; charset=' . get_option( 'blog_charset' ); 467 } else { 468 // Set the correct content type for feeds. 469 $type = $this->query_vars['feed']; 470 if ( 'feed' === $this->query_vars['feed'] ) { 471 $type = get_default_feed(); 472 } 473 474 $headers['Content-Type'] = feed_content_type( $type ) . '; charset=' . get_option( 'blog_charset' ); 475 476 // We're showing a feed, so WP is indeed the only thing that last changed. 477 if ( ! empty( $this->query_vars['withcomments'] ) 478 || str_contains( $this->query_vars['feed'], 'comments-' ) 479 || ( empty( $this->query_vars['withoutcomments'] ) 480 && ( ! empty( $this->query_vars['p'] ) 481 || ! empty( $this->query_vars['name'] ) 482 || ! empty( $this->query_vars['page_id'] ) 483 || ! empty( $this->query_vars['pagename'] ) 484 || ! empty( $this->query_vars['attachment'] ) 485 || ! empty( $this->query_vars['attachment_id'] ) 486 ) 487 ) 488 ) { 489 $wp_last_modified_post = mysql2date( $date_format, get_lastpostmodified( 'GMT' ), false ); 490 $wp_last_modified_comment = mysql2date( $date_format, get_lastcommentmodified( 'GMT' ), false ); 491 492 if ( strtotime( $wp_last_modified_post ) > strtotime( $wp_last_modified_comment ) ) { 493 $wp_last_modified = $wp_last_modified_post; 494 } else { 495 $wp_last_modified = $wp_last_modified_comment; 496 } 497 } else { 498 $wp_last_modified = mysql2date( $date_format, get_lastpostmodified( 'GMT' ), false ); 499 } 500 501 if ( ! $wp_last_modified ) { 502 $wp_last_modified = gmdate( $date_format ); 503 } 504 505 $wp_last_modified .= ' GMT'; 506 $wp_etag = '"' . md5( $wp_last_modified ) . '"'; 507 508 $headers['Last-Modified'] = $wp_last_modified; 509 $headers['ETag'] = $wp_etag; 510 511 // Support for conditional GET. 512 if ( isset( $_SERVER['HTTP_IF_NONE_MATCH'] ) ) { 513 $client_etag = wp_unslash( $_SERVER['HTTP_IF_NONE_MATCH'] ); 514 } else { 515 $client_etag = ''; 516 } 517 518 if ( isset( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ) ) { 519 $client_last_modified = trim( $_SERVER['HTTP_IF_MODIFIED_SINCE'] ); 520 } else { 521 $client_last_modified = ''; 522 } 523 524 // If string is empty, return 0. If not, attempt to parse into a timestamp. 525 $client_modified_timestamp = $client_last_modified ? strtotime( $client_last_modified ) : 0; 526 527 // Make a timestamp for our most recent modification. 528 $wp_modified_timestamp = strtotime( $wp_last_modified ); 529 530 if ( ( $client_last_modified && $client_etag ) 531 ? ( ( $client_modified_timestamp >= $wp_modified_timestamp ) && ( $client_etag === $wp_etag ) ) 532 : ( ( $client_modified_timestamp >= $wp_modified_timestamp ) || ( $client_etag === $wp_etag ) ) 533 ) { 534 $status = 304; 535 $exit_required = true; 536 } 537 } 538 539 if ( is_singular() ) { 540 $post = $wp_query->post ?? null; 541 542 // Only set X-Pingback for single posts that allow pings. 543 if ( $post && pings_open( $post ) ) { 544 $headers['X-Pingback'] = get_bloginfo( 'pingback_url', 'display' ); 545 } 546 547 // Send nocache headers for password protected posts to avoid unwanted caching. 548 if ( ! empty( $post->post_password ) ) { 549 $headers = array_merge( $headers, wp_get_nocache_headers() ); 550 } 551 } 552 553 /** 554 * Filters the HTTP headers before they're sent to the browser. 555 * 556 * @since 2.8.0 557 * 558 * @param string[] $headers Associative array of headers to be sent. 559 * @param WP $wp Current WordPress environment instance. 560 */ 561 $headers = apply_filters( 'wp_headers', $headers, $this ); 562 563 if ( ! empty( $status ) ) { 564 status_header( $status ); 565 } 566 567 // If Last-Modified is set to false, it should not be sent (no-cache situation). 568 if ( isset( $headers['Last-Modified'] ) && false === $headers['Last-Modified'] ) { 569 unset( $headers['Last-Modified'] ); 570 571 if ( ! headers_sent() ) { 572 header_remove( 'Last-Modified' ); 573 } 574 } 575 576 if ( ! headers_sent() ) { 577 foreach ( (array) $headers as $name => $field_value ) { 578 header( "{$name}: {$field_value}" ); 579 } 580 } 581 582 if ( $exit_required ) { 583 exit; 584 } 585 586 /** 587 * Fires once the requested HTTP headers for caching, content type, etc. have been sent. 588 * 589 * The {@see 'wp_finalized_template_enhancement_output_buffer'} action may be used to send 590 * headers after rendering the template into an output buffer. 591 * 592 * @since 2.1.0 593 * 594 * @param WP $wp Current WordPress environment instance (passed by reference). 595 */ 596 do_action_ref_array( 'send_headers', array( &$this ) ); 597 } 598 599 /** 600 * Sets the query string property based off of the query variable property. 601 * 602 * The {@see 'query_string'} filter is deprecated, but still works. Plugins should 603 * use the {@see 'request'} filter instead. 604 * 605 * @since 2.0.0 606 */ 607 public function build_query_string() { 608 $this->query_string = ''; 609 610 foreach ( (array) array_keys( $this->query_vars ) as $wpvar ) { 611 if ( '' !== $this->query_vars[ $wpvar ] ) { 612 $this->query_string .= ( strlen( $this->query_string ) < 1 ) ? '' : '&'; 613 614 if ( ! is_scalar( $this->query_vars[ $wpvar ] ) ) { // Discard non-scalars. 615 continue; 616 } 617 618 $this->query_string .= $wpvar . '=' . rawurlencode( $this->query_vars[ $wpvar ] ); 619 } 620 } 621 622 if ( has_filter( 'query_string' ) ) { // Don't bother filtering and parsing if no plugins are hooked in. 623 /** 624 * Filters the query string before parsing. 625 * 626 * @since 1.5.0 627 * @deprecated 2.1.0 Use {@see 'query_vars'} or {@see 'request'} filters instead. 628 * 629 * @param string $query_string The query string to modify. 630 */ 631 $this->query_string = apply_filters_deprecated( 632 'query_string', 633 array( $this->query_string ), 634 '2.1.0', 635 'query_vars, request' 636 ); 637 638 parse_str( $this->query_string, $this->query_vars ); 639 } 640 } 641 642 /** 643 * Set up the WordPress Globals. 644 * 645 * The query_vars property will be extracted to the GLOBALS. So care should 646 * be taken when naming global variables that might interfere with the 647 * WordPress environment. 648 * 649 * @since 2.0.0 650 * 651 * @global WP_Query $wp_query WordPress Query object. 652 * @global string $query_string Query string for the loop. 653 * @global array $posts The found posts. 654 * @global WP_Post|null $post The current post, if available. 655 * @global string $request The SQL statement for the request. 656 * @global int $more Only set, if single page or post. 657 * @global int $single If single page or post. Only set, if single page or post. 658 * @global WP_User|false|null $authordata Only set, if author archive. 659 */ 660 public function register_globals() { 661 global $wp_query; 662 663 // Extract updated query vars back into global namespace. 664 foreach ( (array) $wp_query->query_vars as $key => $value ) { 665 $GLOBALS[ $key ] = $value; 666 } 667 668 $GLOBALS['query_string'] = $this->query_string; 669 $GLOBALS['posts'] = & $wp_query->posts; 670 $GLOBALS['post'] = $wp_query->post ?? null; 671 $GLOBALS['request'] = $wp_query->request; 672 673 if ( $wp_query->is_single() || $wp_query->is_page() ) { 674 $GLOBALS['more'] = 1; 675 $GLOBALS['single'] = 1; 676 } 677 678 if ( $wp_query->is_author() ) { 679 $GLOBALS['authordata'] = get_userdata( get_queried_object_id() ); 680 } 681 } 682 683 /** 684 * Set up the current user. 685 * 686 * @since 2.0.0 687 */ 688 public function init() { 689 wp_get_current_user(); 690 } 691 692 /** 693 * Set up the Loop based on the query variables. 694 * 695 * @since 2.0.0 696 * 697 * @global WP_Query $wp_the_query WordPress Query object. 698 */ 699 public function query_posts() { 700 global $wp_the_query; 701 $this->build_query_string(); 702 $wp_the_query->query( $this->query_vars ); 703 } 704 705 /** 706 * Set the Headers for 404, if nothing is found for requested URL. 707 * 708 * Issue a 404 if a request doesn't match any posts and doesn't match any object 709 * (e.g. an existing-but-empty category, tag, author) and a 404 was not already issued, 710 * and if the request was not a search or the homepage. 711 * 712 * Otherwise, issue a 200. 713 * 714 * This sets headers after posts have been queried. handle_404() really means "handle status". 715 * By inspecting the result of querying posts, seemingly successful requests can be switched to 716 * a 404 so that canonical redirection logic can kick in. 717 * 718 * @since 2.0.0 719 * 720 * @global WP_Query $wp_query WordPress Query object. 721 */ 722 public function handle_404() { 723 global $wp_query; 724 725 /** 726 * Filters whether to short-circuit default header status handling. 727 * 728 * Returning a non-false value from the filter will short-circuit the handling 729 * and return early. 730 * 731 * @since 4.5.0 732 * 733 * @param bool $preempt Whether to short-circuit default header status handling. Default false. 734 * @param WP_Query $wp_query WordPress Query object. 735 */ 736 if ( false !== apply_filters( 'pre_handle_404', false, $wp_query ) ) { 737 return; 738 } 739 740 // If we've already issued a 404, bail. 741 if ( is_404() ) { 742 return; 743 } 744 745 $set_404 = true; 746 747 // Never 404 here for the admin, robots, favicon, or sitemaps. 748 // Sitemap routes send their own status in WP_Sitemaps::render_sitemaps(). 749 if ( is_admin() || is_robots() || is_favicon() || is_sitemap() ) { 750 $set_404 = false; 751 752 // If posts were found, check for paged content. 753 } elseif ( $wp_query->posts ) { 754 $content_found = true; 755 756 if ( is_singular() ) { 757 $post = $wp_query->post ?? null; 758 $next = '<!--nextpage-->'; 759 760 // Check for paged content that exceeds the max number of pages. 761 if ( $post && ! empty( $this->query_vars['page'] ) ) { 762 // Check if content is actually intended to be paged. 763 if ( str_contains( $post->post_content, $next ) ) { 764 $page = trim( $this->query_vars['page'], '/' ); 765 $content_found = (int) $page <= ( substr_count( $post->post_content, $next ) + 1 ); 766 } else { 767 $content_found = false; 768 } 769 } 770 } 771 772 // The posts page does not support the <!--nextpage--> pagination. 773 if ( $wp_query->is_posts_page && ! empty( $this->query_vars['page'] ) ) { 774 $content_found = false; 775 } 776 777 if ( $content_found ) { 778 $set_404 = false; 779 } 780 781 // We will 404 for paged queries, as no posts were found. 782 } elseif ( ! is_paged() ) { 783 $author = get_query_var( 'author' ); 784 785 // Don't 404 for authors without posts as long as they matched an author on this site. 786 if ( is_author() && is_numeric( $author ) && $author > 0 && is_user_member_of_blog( $author ) 787 // Don't 404 for these queries if they matched an object. 788 || ( is_tag() || is_category() || is_tax() || is_post_type_archive() ) && get_queried_object() 789 // Don't 404 for these queries either. 790 || is_home() || is_search() || is_feed() 791 ) { 792 $set_404 = false; 793 } 794 } 795 796 if ( $set_404 ) { 797 // Guess it's time to 404. 798 $wp_query->set_404(); 799 status_header( 404 ); 800 nocache_headers(); 801 } else { 802 status_header( 200 ); 803 } 804 } 805 806 /** 807 * Sets up all of the variables required by the WordPress environment. 808 * 809 * The action {@see 'wp'} has one parameter that references the WP object. It 810 * allows for accessing the properties and methods to further manipulate the 811 * object. 812 * 813 * @since 2.0.0 814 * 815 * @param string|array $query_args Passed to parse_request(). 816 */ 817 public function main( $query_args = '' ) { 818 $this->init(); 819 820 $parsed = $this->parse_request( $query_args ); 821 822 if ( $parsed ) { 823 $this->query_posts(); 824 $this->handle_404(); 825 $this->register_globals(); 826 } 827 828 $this->send_headers(); 829 830 /** 831 * Fires once the WordPress environment has been set up. 832 * 833 * @since 2.1.0 834 * 835 * @param WP $wp Current WordPress environment instance (passed by reference). 836 */ 837 do_action_ref_array( 'wp', array( &$this ) ); 838 } 839 }
title
Description
Body
title
Description
Body
title
Description
Body
title
Body
| Generated : Fri Oct 9 08:20:33 2026 | Cross-referenced by PHPXref |