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PHP Cross Reference of WordPress Trunk (Updated Daily) |
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1 <?php 2 /** 3 * Core Translation API 4 * 5 * @package WordPress 6 * @subpackage i18n 7 * @since 1.2.0 8 */ 9 10 /** 11 * Retrieves the current locale. 12 * 13 * If the locale is set, then it will filter the locale in the {@see 'locale'} 14 * filter hook and return the value. 15 * 16 * If the locale is not set already, then the WPLANG constant is used if it is 17 * defined. Then it is filtered through the {@see 'locale'} filter hook and 18 * the value for the locale global set and the locale is returned. 19 * 20 * The process to get the locale should only be done once, but the locale will 21 * always be filtered using the {@see 'locale'} hook. 22 * 23 * @since 1.5.0 24 * 25 * @global string $locale The current locale. 26 * @global string $wp_local_package Locale code of the package. 27 * 28 * @return string The locale of the blog or from the {@see 'locale'} hook. 29 */ 30 function get_locale() { 31 global $locale, $wp_local_package; 32 33 if ( isset( $locale ) ) { 34 /** This filter is documented in wp-includes/l10n.php */ 35 return apply_filters( 'locale', $locale ); 36 } 37 38 if ( isset( $wp_local_package ) ) { 39 $locale = $wp_local_package; 40 } 41 42 // WPLANG was defined in wp-config. 43 if ( defined( 'WPLANG' ) ) { 44 $locale = WPLANG; 45 } 46 47 // If multisite, check options. 48 if ( is_multisite() ) { 49 // Don't check blog option when installing. 50 if ( wp_installing() ) { 51 $ms_locale = get_site_option( 'WPLANG' ); 52 } else { 53 $ms_locale = get_option( 'WPLANG' ); 54 if ( false === $ms_locale ) { 55 $ms_locale = get_site_option( 'WPLANG' ); 56 } 57 } 58 59 if ( false !== $ms_locale ) { 60 $locale = $ms_locale; 61 } 62 } else { 63 $db_locale = get_option( 'WPLANG' ); 64 if ( false !== $db_locale ) { 65 $locale = $db_locale; 66 } 67 } 68 69 if ( empty( $locale ) ) { 70 $locale = 'en_US'; 71 } 72 73 /** 74 * Filters the locale ID of the WordPress installation. 75 * 76 * @since 1.5.0 77 * 78 * @param string $locale The locale ID. 79 */ 80 return apply_filters( 'locale', $locale ); 81 } 82 83 /** 84 * Retrieves the locale of a user. 85 * 86 * If the user has a locale set to a non-empty string then it will be 87 * returned. Otherwise it returns the locale of get_locale(). 88 * 89 * @since 4.7.0 90 * 91 * @param int|WP_User $user User's ID or a WP_User object. Defaults to current user. 92 * @return string The locale of the user. 93 */ 94 function get_user_locale( $user = 0 ) { 95 $user_object = false; 96 97 if ( 0 === $user && function_exists( 'wp_get_current_user' ) ) { 98 $user_object = wp_get_current_user(); 99 } elseif ( $user instanceof WP_User ) { 100 $user_object = $user; 101 } elseif ( $user && is_numeric( $user ) ) { 102 $user_object = get_user_by( 'id', $user ); 103 } 104 105 if ( ! $user_object ) { 106 return get_locale(); 107 } 108 109 $locale = $user_object->locale; 110 111 return $locale ? $locale : get_locale(); 112 } 113 114 /** 115 * Determines the current locale desired for the request. 116 * 117 * @since 5.0.0 118 * 119 * @global string $pagenow The filename of the current screen. 120 * 121 * @return string The determined locale. 122 */ 123 function determine_locale() { 124 /** 125 * Filters the locale for the current request prior to the default determination process. 126 * 127 * Using this filter allows to override the default logic, effectively short-circuiting the function. 128 * 129 * @since 5.0.0 130 * 131 * @param string|null $locale The locale to return and short-circuit. Default null. 132 */ 133 $determined_locale = apply_filters( 'pre_determine_locale', null ); 134 135 if ( $determined_locale && is_string( $determined_locale ) ) { 136 return $determined_locale; 137 } 138 139 if ( 140 isset( $GLOBALS['pagenow'] ) && 'wp-login.php' === $GLOBALS['pagenow'] && 141 ( ! empty( $_GET['wp_lang'] ) || ! empty( $_COOKIE['wp_lang'] ) ) 142 ) { 143 if ( ! empty( $_GET['wp_lang'] ) ) { 144 $determined_locale = sanitize_locale_name( $_GET['wp_lang'] ); 145 } else { 146 $determined_locale = sanitize_locale_name( $_COOKIE['wp_lang'] ); 147 } 148 } elseif ( 149 is_admin() || 150 ( isset( $_GET['_locale'] ) && 'user' === $_GET['_locale'] && wp_is_json_request() ) 151 ) { 152 $determined_locale = get_user_locale(); 153 } elseif ( 154 ( ! empty( $_REQUEST['language'] ) || isset( $GLOBALS['wp_local_package'] ) ) 155 && wp_installing() 156 ) { 157 if ( ! empty( $_REQUEST['language'] ) ) { 158 $determined_locale = sanitize_locale_name( $_REQUEST['language'] ); 159 } else { 160 $determined_locale = $GLOBALS['wp_local_package']; 161 } 162 } 163 164 if ( ! $determined_locale ) { 165 $determined_locale = get_locale(); 166 } 167 168 /** 169 * Filters the locale for the current request. 170 * 171 * @since 5.0.0 172 * 173 * @param string $determined_locale The locale. 174 */ 175 return apply_filters( 'determine_locale', $determined_locale ); 176 } 177 178 /** 179 * Retrieves the translation of $text. 180 * 181 * If there is no translation, or the text domain isn't loaded, the original text is returned. 182 * 183 * *Note:* Don't use translate() directly, use __() or related functions. 184 * 185 * @since 2.2.0 186 * @since 5.5.0 Introduced `gettext-{$domain}` filter. 187 * 188 * @param string $text Text to translate. 189 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 190 * Default 'default'. 191 * @return string Translated text. 192 */ 193 function translate( $text, $domain = 'default' ) { 194 $translations = get_translations_for_domain( $domain ); 195 $translation = $translations->translate( $text ); 196 197 /** 198 * Filters text with its translation. 199 * 200 * @since 2.0.11 201 * 202 * @param string $translation Translated text. 203 * @param string $text Text to translate. 204 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 205 */ 206 $translation = apply_filters( 'gettext', $translation, $text, $domain ); 207 208 /** 209 * Filters text with its translation for a domain. 210 * 211 * The dynamic portion of the hook name, `$domain`, refers to the text domain. 212 * 213 * @since 5.5.0 214 * 215 * @param string $translation Translated text. 216 * @param string $text Text to translate. 217 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 218 */ 219 $translation = apply_filters( "gettext_{$domain}", $translation, $text, $domain ); 220 221 return $translation; 222 } 223 224 /** 225 * Removes last item on a pipe-delimited string. 226 * 227 * Meant for removing the last item in a string, such as 'Role name|User role'. The original 228 * string will be returned if no pipe '|' characters are found in the string. 229 * 230 * @since 2.8.0 231 * 232 * @param string $text A pipe-delimited string. 233 * @return string Either $text or everything before the last pipe. 234 */ 235 function before_last_bar( $text ) { 236 $last_bar = strrpos( $text, '|' ); 237 if ( false === $last_bar ) { 238 return $text; 239 } else { 240 return substr( $text, 0, $last_bar ); 241 } 242 } 243 244 /** 245 * Retrieves the translation of $text in the context defined in $context. 246 * 247 * If there is no translation, or the text domain isn't loaded, the original text is returned. 248 * 249 * *Note:* Don't use translate_with_gettext_context() directly, use _x() or related functions. 250 * 251 * @since 2.8.0 252 * @since 5.5.0 Introduced `gettext_with_context-{$domain}` filter. 253 * 254 * @param string $text Text to translate. 255 * @param string $context Context information for the translators. 256 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 257 * Default 'default'. 258 * @return string Translated text on success, original text on failure. 259 */ 260 function translate_with_gettext_context( $text, $context, $domain = 'default' ) { 261 $translations = get_translations_for_domain( $domain ); 262 $translation = $translations->translate( $text, $context ); 263 264 /** 265 * Filters text with its translation based on context information. 266 * 267 * @since 2.8.0 268 * 269 * @param string $translation Translated text. 270 * @param string $text Text to translate. 271 * @param string $context Context information for the translators. 272 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 273 */ 274 $translation = apply_filters( 'gettext_with_context', $translation, $text, $context, $domain ); 275 276 /** 277 * Filters text with its translation based on context information for a domain. 278 * 279 * The dynamic portion of the hook name, `$domain`, refers to the text domain. 280 * 281 * @since 5.5.0 282 * 283 * @param string $translation Translated text. 284 * @param string $text Text to translate. 285 * @param string $context Context information for the translators. 286 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 287 */ 288 $translation = apply_filters( "gettext_with_context_{$domain}", $translation, $text, $context, $domain ); 289 290 return $translation; 291 } 292 293 /** 294 * Retrieves the translation of $text. 295 * 296 * If there is no translation, or the text domain isn't loaded, the original text is returned. 297 * 298 * @since 2.1.0 299 * 300 * @param string $text Text to translate. 301 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 302 * Default 'default'. 303 * @return string Translated text. 304 */ 305 function __( $text, $domain = 'default' ) { 306 return translate( $text, $domain ); 307 } 308 309 /** 310 * Retrieves the translation of $text and escapes it for safe use in an attribute. 311 * 312 * If there is no translation, or the text domain isn't loaded, the original text is returned. 313 * 314 * @since 2.8.0 315 * 316 * @param string $text Text to translate. 317 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 318 * Default 'default'. 319 * @return string Translated text on success, original text on failure. 320 */ 321 function esc_attr__( $text, $domain = 'default' ) { 322 return esc_attr( translate( $text, $domain ) ); 323 } 324 325 /** 326 * Retrieves the translation of $text and escapes it for safe use in HTML output. 327 * 328 * If there is no translation, or the text domain isn't loaded, the original text 329 * is escaped and returned. 330 * 331 * @since 2.8.0 332 * 333 * @param string $text Text to translate. 334 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 335 * Default 'default'. 336 * @return string Translated text. 337 */ 338 function esc_html__( $text, $domain = 'default' ) { 339 return esc_html( translate( $text, $domain ) ); 340 } 341 342 /** 343 * Displays translated text. 344 * 345 * @since 1.2.0 346 * 347 * @param string $text Text to translate. 348 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 349 * Default 'default'. 350 */ 351 function _e( $text, $domain = 'default' ) { 352 echo translate( $text, $domain ); 353 } 354 355 /** 356 * Displays translated text that has been escaped for safe use in an attribute. 357 * 358 * Encodes `< > & " '` (less than, greater than, ampersand, double quote, single quote). 359 * Will never double encode entities. 360 * 361 * If you need the value for use in PHP, use esc_attr__(). 362 * 363 * @since 2.8.0 364 * 365 * @param string $text Text to translate. 366 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 367 * Default 'default'. 368 */ 369 function esc_attr_e( $text, $domain = 'default' ) { 370 echo esc_attr( translate( $text, $domain ) ); 371 } 372 373 /** 374 * Displays translated text that has been escaped for safe use in HTML output. 375 * 376 * If there is no translation, or the text domain isn't loaded, the original text 377 * is escaped and displayed. 378 * 379 * If you need the value for use in PHP, use esc_html__(). 380 * 381 * @since 2.8.0 382 * 383 * @param string $text Text to translate. 384 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 385 * Default 'default'. 386 */ 387 function esc_html_e( $text, $domain = 'default' ) { 388 echo esc_html( translate( $text, $domain ) ); 389 } 390 391 /** 392 * Retrieves translated string with gettext context. 393 * 394 * Quite a few times, there will be collisions with similar translatable text 395 * found in more than two places, but with different translated context. 396 * 397 * By including the context in the pot file, translators can translate the two 398 * strings differently. 399 * 400 * @since 2.8.0 401 * 402 * @param string $text Text to translate. 403 * @param string $context Context information for the translators. 404 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 405 * Default 'default'. 406 * @return string Translated context string without pipe. 407 */ 408 function _x( $text, $context, $domain = 'default' ) { 409 return translate_with_gettext_context( $text, $context, $domain ); 410 } 411 412 /** 413 * Displays translated string with gettext context. 414 * 415 * @since 3.0.0 416 * 417 * @param string $text Text to translate. 418 * @param string $context Context information for the translators. 419 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 420 * Default 'default'. 421 */ 422 function _ex( $text, $context, $domain = 'default' ) { 423 echo _x( $text, $context, $domain ); 424 } 425 426 /** 427 * Translates string with gettext context, and escapes it for safe use in an attribute. 428 * 429 * If there is no translation, or the text domain isn't loaded, the original text 430 * is escaped and returned. 431 * 432 * @since 2.8.0 433 * 434 * @param string $text Text to translate. 435 * @param string $context Context information for the translators. 436 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 437 * Default 'default'. 438 * @return string Translated text. 439 */ 440 function esc_attr_x( $text, $context, $domain = 'default' ) { 441 return esc_attr( translate_with_gettext_context( $text, $context, $domain ) ); 442 } 443 444 /** 445 * Translates string with gettext context, and escapes it for safe use in HTML output. 446 * 447 * If there is no translation, or the text domain isn't loaded, the original text 448 * is escaped and returned. 449 * 450 * @since 2.9.0 451 * 452 * @param string $text Text to translate. 453 * @param string $context Context information for the translators. 454 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 455 * Default 'default'. 456 * @return string Translated text. 457 */ 458 function esc_html_x( $text, $context, $domain = 'default' ) { 459 return esc_html( translate_with_gettext_context( $text, $context, $domain ) ); 460 } 461 462 /** 463 * Translates and retrieves the singular or plural form based on the supplied number. 464 * 465 * Used when you want to use the appropriate form of a string based on whether a 466 * number is singular or plural. 467 * 468 * Example: 469 * 470 * printf( _n( '%s person', '%s people', $count, 'text-domain' ), number_format_i18n( $count ) ); 471 * 472 * @since 2.8.0 473 * @since 5.5.0 Introduced `ngettext-{$domain}` filter. 474 * 475 * @param string $single The text to be used if the number is singular. 476 * @param string $plural The text to be used if the number is plural. 477 * @param int $number The number to compare against to use either the singular or plural form. 478 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 479 * Default 'default'. 480 * @return string The translated singular or plural form. 481 */ 482 function _n( $single, $plural, $number, $domain = 'default' ) { 483 $translations = get_translations_for_domain( $domain ); 484 $translation = $translations->translate_plural( $single, $plural, $number ); 485 486 /** 487 * Filters the singular or plural form of a string. 488 * 489 * @since 2.2.0 490 * 491 * @param string $translation Translated text. 492 * @param string $single The text to be used if the number is singular. 493 * @param string $plural The text to be used if the number is plural. 494 * @param int $number The number to compare against to use either the singular or plural form. 495 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 496 */ 497 $translation = apply_filters( 'ngettext', $translation, $single, $plural, $number, $domain ); 498 499 /** 500 * Filters the singular or plural form of a string for a domain. 501 * 502 * The dynamic portion of the hook name, `$domain`, refers to the text domain. 503 * 504 * @since 5.5.0 505 * 506 * @param string $translation Translated text. 507 * @param string $single The text to be used if the number is singular. 508 * @param string $plural The text to be used if the number is plural. 509 * @param int $number The number to compare against to use either the singular or plural form. 510 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 511 */ 512 $translation = apply_filters( "ngettext_{$domain}", $translation, $single, $plural, $number, $domain ); 513 514 return $translation; 515 } 516 517 /** 518 * Translates and retrieves the singular or plural form based on the supplied number, with gettext context. 519 * 520 * This is a hybrid of _n() and _x(). It supports context and plurals. 521 * 522 * Used when you want to use the appropriate form of a string with context based on whether a 523 * number is singular or plural. 524 * 525 * Example of a generic phrase which is disambiguated via the context parameter: 526 * 527 * printf( _nx( '%s group', '%s groups', $people, 'group of people', 'text-domain' ), number_format_i18n( $people ) ); 528 * printf( _nx( '%s group', '%s groups', $animals, 'group of animals', 'text-domain' ), number_format_i18n( $animals ) ); 529 * 530 * @since 2.8.0 531 * @since 5.5.0 Introduced `ngettext_with_context-{$domain}` filter. 532 * 533 * @param string $single The text to be used if the number is singular. 534 * @param string $plural The text to be used if the number is plural. 535 * @param int $number The number to compare against to use either the singular or plural form. 536 * @param string $context Context information for the translators. 537 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 538 * Default 'default'. 539 * @return string The translated singular or plural form. 540 */ 541 function _nx( $single, $plural, $number, $context, $domain = 'default' ) { 542 $translations = get_translations_for_domain( $domain ); 543 $translation = $translations->translate_plural( $single, $plural, $number, $context ); 544 545 /** 546 * Filters the singular or plural form of a string with gettext context. 547 * 548 * @since 2.8.0 549 * 550 * @param string $translation Translated text. 551 * @param string $single The text to be used if the number is singular. 552 * @param string $plural The text to be used if the number is plural. 553 * @param int $number The number to compare against to use either the singular or plural form. 554 * @param string $context Context information for the translators. 555 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 556 */ 557 $translation = apply_filters( 'ngettext_with_context', $translation, $single, $plural, $number, $context, $domain ); 558 559 /** 560 * Filters the singular or plural form of a string with gettext context for a domain. 561 * 562 * The dynamic portion of the hook name, `$domain`, refers to the text domain. 563 * 564 * @since 5.5.0 565 * 566 * @param string $translation Translated text. 567 * @param string $single The text to be used if the number is singular. 568 * @param string $plural The text to be used if the number is plural. 569 * @param int $number The number to compare against to use either the singular or plural form. 570 * @param string $context Context information for the translators. 571 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 572 */ 573 $translation = apply_filters( "ngettext_with_context_{$domain}", $translation, $single, $plural, $number, $context, $domain ); 574 575 return $translation; 576 } 577 578 /** 579 * Registers plural strings in POT file, but does not translate them. 580 * 581 * Used when you want to keep structures with translatable plural 582 * strings and use them later when the number is known. 583 * 584 * Example: 585 * 586 * $message = _n_noop( '%s post', '%s posts', 'text-domain' ); 587 * ... 588 * printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) ); 589 * 590 * @since 2.5.0 591 * 592 * @param string $singular Singular form to be localized. 593 * @param string $plural Plural form to be localized. 594 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 595 * Default null. 596 * @return array { 597 * Array of translation information for the strings. 598 * 599 * @type string $0 Singular form to be localized. No longer used. 600 * @type string $1 Plural form to be localized. No longer used. 601 * @type string $singular Singular form to be localized. 602 * @type string $plural Plural form to be localized. 603 * @type null $context Context information for the translators. 604 * @type string|null $domain Text domain. 605 * } 606 */ 607 function _n_noop( $singular, $plural, $domain = null ) { 608 return array( 609 0 => $singular, 610 1 => $plural, 611 'singular' => $singular, 612 'plural' => $plural, 613 'context' => null, 614 'domain' => $domain, 615 ); 616 } 617 618 /** 619 * Registers plural strings with gettext context in POT file, but does not translate them. 620 * 621 * Used when you want to keep structures with translatable plural 622 * strings and use them later when the number is known. 623 * 624 * Example of a generic phrase which is disambiguated via the context parameter: 625 * 626 * $messages = array( 627 * 'people' => _nx_noop( '%s group', '%s groups', 'people', 'text-domain' ), 628 * 'animals' => _nx_noop( '%s group', '%s groups', 'animals', 'text-domain' ), 629 * ); 630 * ... 631 * $message = $messages[ $type ]; 632 * printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) ); 633 * 634 * @since 2.8.0 635 * 636 * @param string $singular Singular form to be localized. 637 * @param string $plural Plural form to be localized. 638 * @param string $context Context information for the translators. 639 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 640 * Default null. 641 * @return array { 642 * Array of translation information for the strings. 643 * 644 * @type string $0 Singular form to be localized. No longer used. 645 * @type string $1 Plural form to be localized. No longer used. 646 * @type string $2 Context information for the translators. No longer used. 647 * @type string $singular Singular form to be localized. 648 * @type string $plural Plural form to be localized. 649 * @type string $context Context information for the translators. 650 * @type string|null $domain Text domain. 651 * } 652 */ 653 function _nx_noop( $singular, $plural, $context, $domain = null ) { 654 return array( 655 0 => $singular, 656 1 => $plural, 657 2 => $context, 658 'singular' => $singular, 659 'plural' => $plural, 660 'context' => $context, 661 'domain' => $domain, 662 ); 663 } 664 665 /** 666 * Translates and returns the singular or plural form of a string that's been registered 667 * with _n_noop() or _nx_noop(). 668 * 669 * Used when you want to use a translatable plural string once the number is known. 670 * 671 * Example: 672 * 673 * $message = _n_noop( '%s post', '%s posts', 'text-domain' ); 674 * ... 675 * printf( translate_nooped_plural( $message, $count, 'text-domain' ), number_format_i18n( $count ) ); 676 * 677 * @since 3.1.0 678 * 679 * @param array $nooped_plural { 680 * Array that is usually a return value from _n_noop() or _nx_noop(). 681 * 682 * @type string $singular Singular form to be localized. 683 * @type string $plural Plural form to be localized. 684 * @type string|null $context Context information for the translators. 685 * @type string|null $domain Text domain. 686 * } 687 * @param int $count Number of objects. 688 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. If $nooped_plural contains 689 * a text domain passed to _n_noop() or _nx_noop(), it will override this value. Default 'default'. 690 * @return string Either $singular or $plural translated text. 691 */ 692 function translate_nooped_plural( $nooped_plural, $count, $domain = 'default' ) { 693 if ( $nooped_plural['domain'] ) { 694 $domain = $nooped_plural['domain']; 695 } 696 697 if ( $nooped_plural['context'] ) { 698 return _nx( $nooped_plural['singular'], $nooped_plural['plural'], $count, $nooped_plural['context'], $domain ); 699 } else { 700 return _n( $nooped_plural['singular'], $nooped_plural['plural'], $count, $domain ); 701 } 702 } 703 704 /** 705 * Loads a .mo file into the text domain $domain. 706 * 707 * If the text domain already exists, the translations will be merged. If both 708 * sets have the same string, the translation from the original value will be taken. 709 * 710 * On success, the .mo file will be placed in the $l10n global by $domain 711 * and will be a MO object. 712 * 713 * @since 1.5.0 714 * @since 6.1.0 Added the `$locale` parameter. 715 * 716 * @global MO[] $l10n An array of all currently loaded text domains. 717 * @global MO[] $l10n_unloaded An array of all text domains that have been unloaded again. 718 * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry. 719 * 720 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 721 * @param string $mofile Path to the .mo file. 722 * @param string $locale Optional. Locale. Default is the current locale. 723 * @return bool True on success, false on failure. 724 */ 725 function load_textdomain( $domain, $mofile, $locale = null ) { 726 /** @var WP_Textdomain_Registry $wp_textdomain_registry */ 727 global $l10n, $l10n_unloaded, $wp_textdomain_registry; 728 729 $l10n_unloaded = (array) $l10n_unloaded; 730 731 if ( ! is_string( $domain ) ) { 732 return false; 733 } 734 735 /** 736 * Filters whether to short-circuit loading .mo file. 737 * 738 * Returning a non-null value from the filter will effectively short-circuit 739 * the loading, returning the passed value instead. 740 * 741 * @since 6.3.0 742 * 743 * @param bool|null $loaded The result of loading a .mo file. Default null. 744 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 745 * @param string $mofile Path to the MO file. 746 * @param string|null $locale Locale. 747 */ 748 $loaded = apply_filters( 'pre_load_textdomain', null, $domain, $mofile, $locale ); 749 if ( null !== $loaded ) { 750 if ( true === $loaded ) { 751 unset( $l10n_unloaded[ $domain ] ); 752 } 753 754 return $loaded; 755 } 756 757 /** 758 * Filters whether to override the .mo file loading. 759 * 760 * @since 2.9.0 761 * @since 6.2.0 Added the `$locale` parameter. 762 * 763 * @param bool $override Whether to override the .mo file loading. Default false. 764 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 765 * @param string $mofile Path to the MO file. 766 * @param string|null $locale Locale. 767 */ 768 $plugin_override = apply_filters( 'override_load_textdomain', false, $domain, $mofile, $locale ); 769 770 if ( true === (bool) $plugin_override ) { 771 unset( $l10n_unloaded[ $domain ] ); 772 773 return true; 774 } 775 776 /** 777 * Fires before the MO translation file is loaded. 778 * 779 * @since 2.9.0 780 * 781 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 782 * @param string $mofile Path to the .mo file. 783 */ 784 do_action( 'load_textdomain', $domain, $mofile ); 785 786 /** 787 * Filters MO file path for loading translations for a specific text domain. 788 * 789 * @since 2.9.0 790 * 791 * @param string $mofile Path to the MO file. 792 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 793 */ 794 $mofile = apply_filters( 'load_textdomain_mofile', $mofile, $domain ); 795 796 if ( ! $locale ) { 797 $locale = determine_locale(); 798 } 799 800 $i18n_controller = WP_Translation_Controller::get_instance(); 801 802 // Ensures the correct locale is set as the current one, in case it was filtered. 803 $i18n_controller->set_locale( $locale ); 804 805 /** 806 * Filters the preferred file format for translation files. 807 * 808 * Can be used to disable the use of PHP files for translations. 809 * 810 * @since 6.5.0 811 * 812 * @param string $preferred_format Preferred file format. Possible values: 'php', 'mo'. Default: 'php'. 813 * @param string $domain The text domain. 814 */ 815 $preferred_format = apply_filters( 'translation_file_format', 'php', $domain ); 816 if ( ! in_array( $preferred_format, array( 'php', 'mo' ), true ) ) { 817 $preferred_format = 'php'; 818 } 819 820 $translation_files = array(); 821 822 if ( 'mo' !== $preferred_format ) { 823 $translation_files[] = substr_replace( $mofile, ".l10n.$preferred_format", - strlen( '.mo' ) ); 824 } 825 826 $translation_files[] = $mofile; 827 828 foreach ( $translation_files as $file ) { 829 /** 830 * Filters the file path for loading translations for the given text domain. 831 * 832 * Similar to the {@see 'load_textdomain_mofile'} filter with the difference that 833 * the file path could be for an MO or PHP file. 834 * 835 * @since 6.5.0 836 * @since 6.6.0 Added the `$locale` parameter. 837 * 838 * @param string $file Path to the translation file to load. 839 * @param string $domain The text domain. 840 * @param string $locale The locale. 841 */ 842 $file = (string) apply_filters( 'load_translation_file', $file, $domain, $locale ); 843 844 $success = $i18n_controller->load_file( $file, $domain, $locale ); 845 846 if ( $success ) { 847 if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof MO ) { 848 $i18n_controller->load_file( $l10n[ $domain ]->get_filename(), $domain, $locale ); 849 } 850 851 // Unset NOOP_Translations reference in get_translations_for_domain(). 852 unset( $l10n[ $domain ] ); 853 854 $l10n[ $domain ] = new WP_Translations( $i18n_controller, $domain ); 855 856 $wp_textdomain_registry->set( $domain, $locale, dirname( $file ) ); 857 858 return true; 859 } 860 } 861 862 return false; 863 } 864 865 /** 866 * Unloads translations for a text domain. 867 * 868 * @since 3.0.0 869 * @since 6.1.0 Added the `$reloadable` parameter. 870 * 871 * @global MO[] $l10n An array of all currently loaded text domains. 872 * @global MO[] $l10n_unloaded An array of all text domains that have been unloaded again. 873 * 874 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 875 * @param bool $reloadable Whether the text domain can be loaded just-in-time again. 876 * @return bool Whether textdomain was unloaded. 877 */ 878 function unload_textdomain( $domain, $reloadable = false ) { 879 global $l10n, $l10n_unloaded; 880 881 $l10n_unloaded = (array) $l10n_unloaded; 882 883 /** 884 * Filters whether to override the text domain unloading. 885 * 886 * @since 3.0.0 887 * @since 6.1.0 Added the `$reloadable` parameter. 888 * 889 * @param bool $override Whether to override the text domain unloading. Default false. 890 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 891 * @param bool $reloadable Whether the text domain can be loaded just-in-time again. 892 */ 893 $plugin_override = apply_filters( 'override_unload_textdomain', false, $domain, $reloadable ); 894 895 if ( $plugin_override ) { 896 if ( ! $reloadable ) { 897 $l10n_unloaded[ $domain ] = true; 898 } 899 900 return true; 901 } 902 903 /** 904 * Fires before the text domain is unloaded. 905 * 906 * @since 3.0.0 907 * @since 6.1.0 Added the `$reloadable` parameter. 908 * 909 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 910 * @param bool $reloadable Whether the text domain can be loaded just-in-time again. 911 */ 912 do_action( 'unload_textdomain', $domain, $reloadable ); 913 914 // Since multiple locales are supported, reloadable text domains don't actually need to be unloaded. 915 if ( ! $reloadable ) { 916 WP_Translation_Controller::get_instance()->unload_textdomain( $domain ); 917 } 918 919 if ( isset( $l10n[ $domain ] ) ) { 920 if ( $l10n[ $domain ] instanceof NOOP_Translations ) { 921 unset( $l10n[ $domain ] ); 922 923 return false; 924 } 925 926 unset( $l10n[ $domain ] ); 927 928 if ( ! $reloadable ) { 929 $l10n_unloaded[ $domain ] = true; 930 } 931 932 return true; 933 } 934 935 return false; 936 } 937 938 /** 939 * Loads default translated strings based on locale. 940 * 941 * Loads the .mo file in WP_LANG_DIR constant path from WordPress root. 942 * The translated (.mo) file is named based on the locale. 943 * 944 * @see load_textdomain() 945 * 946 * @since 1.5.0 947 * 948 * @param string $locale Optional. Locale to load. Default is the value of get_locale(). 949 * @return bool Whether the textdomain was loaded. 950 */ 951 function load_default_textdomain( $locale = null ) { 952 if ( null === $locale ) { 953 $locale = determine_locale(); 954 } 955 956 // Unload previously loaded strings so we can switch translations. 957 unload_textdomain( 'default', true ); 958 959 $return = load_textdomain( 'default', WP_LANG_DIR . "/$locale.mo", $locale ); 960 961 if ( ( is_multisite() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) && ! file_exists( WP_LANG_DIR . "/admin-$locale.mo" ) ) { 962 load_textdomain( 'default', WP_LANG_DIR . "/ms-$locale.mo", $locale ); 963 return $return; 964 } 965 966 if ( is_admin() || wp_installing() || ( defined( 'WP_REPAIRING' ) && WP_REPAIRING ) ) { 967 load_textdomain( 'default', WP_LANG_DIR . "/admin-$locale.mo", $locale ); 968 } 969 970 if ( is_network_admin() || ( defined( 'WP_INSTALLING_NETWORK' ) && WP_INSTALLING_NETWORK ) ) { 971 load_textdomain( 'default', WP_LANG_DIR . "/admin-network-$locale.mo", $locale ); 972 } 973 974 return $return; 975 } 976 977 /** 978 * Loads a plugin's translated strings. 979 * 980 * If the path is not given then it will be the root of the plugin directory. 981 * 982 * The .mo file should be named based on the text domain with a dash, and then the locale exactly. 983 * 984 * @since 1.5.0 985 * @since 4.6.0 The function now tries to load the .mo file from the languages directory first. 986 * @since 6.7.0 Translations are no longer immediately loaded, but handed off to the just-in-time loading mechanism. 987 * 988 * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry. 989 * @global array<string, WP_Translations|NOOP_Translations> $l10n An array of all currently loaded text domains. 990 * 991 * @param string $domain Unique identifier for retrieving translated strings 992 * @param string|false $deprecated Optional. Deprecated. Use the $plugin_rel_path parameter instead. 993 * Default false. 994 * @param string|false $plugin_rel_path Optional. Relative path to WP_PLUGIN_DIR where the .mo file resides. 995 * Default false. 996 * @return bool True when textdomain is successfully loaded, false otherwise. 997 */ 998 function load_plugin_textdomain( $domain, $deprecated = false, $plugin_rel_path = false ) { 999 /** @var WP_Textdomain_Registry $wp_textdomain_registry */ 1000 /** @var array<string, WP_Translations|NOOP_Translations> $l10n */ 1001 global $wp_textdomain_registry, $l10n; 1002 1003 if ( ! is_string( $domain ) ) { 1004 return false; 1005 } 1006 1007 if ( false !== $plugin_rel_path ) { 1008 $path = WP_PLUGIN_DIR . '/' . trim( $plugin_rel_path, '/' ); 1009 } elseif ( false !== $deprecated ) { 1010 _deprecated_argument( __FUNCTION__, '2.7.0' ); 1011 $path = ABSPATH . trim( $deprecated, '/' ); 1012 } else { 1013 $path = WP_PLUGIN_DIR; 1014 } 1015 1016 $wp_textdomain_registry->set_custom_path( $domain, $path ); 1017 1018 // If just-in-time loading was triggered before, reset the entry so it can be tried again. 1019 if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof NOOP_Translations ) { 1020 unset( $l10n[ $domain ] ); 1021 } 1022 1023 return true; 1024 } 1025 1026 /** 1027 * Loads the translated strings for a plugin residing in the mu-plugins directory. 1028 * 1029 * @since 3.0.0 1030 * @since 4.6.0 The function now tries to load the .mo file from the languages directory first. 1031 * @since 6.7.0 Translations are no longer immediately loaded, but handed off to the just-in-time loading mechanism. 1032 * 1033 * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry. 1034 * @global array<string, WP_Translations|NOOP_Translations> $l10n An array of all currently loaded text domains. 1035 * 1036 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 1037 * @param string $mu_plugin_rel_path Optional. Relative to `WPMU_PLUGIN_DIR` directory in which the .mo 1038 * file resides. Default empty string. 1039 * @return bool True when textdomain is successfully loaded, false otherwise. 1040 */ 1041 function load_muplugin_textdomain( $domain, $mu_plugin_rel_path = '' ) { 1042 /** @var WP_Textdomain_Registry $wp_textdomain_registry */ 1043 /** @var array<string, WP_Translations|NOOP_Translations> $l10n */ 1044 global $wp_textdomain_registry, $l10n; 1045 1046 if ( ! is_string( $domain ) ) { 1047 return false; 1048 } 1049 1050 $path = WPMU_PLUGIN_DIR . '/' . ltrim( $mu_plugin_rel_path, '/' ); 1051 1052 $wp_textdomain_registry->set_custom_path( $domain, $path ); 1053 1054 // If just-in-time loading was triggered before, reset the entry so it can be tried again. 1055 if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof NOOP_Translations ) { 1056 unset( $l10n[ $domain ] ); 1057 } 1058 1059 return true; 1060 } 1061 1062 /** 1063 * Loads the theme's translated strings. 1064 * 1065 * If the current locale exists as a .mo file in the theme's root directory, it 1066 * will be included in the translated strings by the $domain. 1067 * 1068 * The .mo files must be named based on the locale exactly. 1069 * 1070 * @since 1.5.0 1071 * @since 4.6.0 The function now tries to load the .mo file from the languages directory first. 1072 * @since 6.7.0 Translations are no longer immediately loaded, but handed off to the just-in-time loading mechanism. 1073 * 1074 * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry. 1075 * @global array<string, WP_Translations|NOOP_Translations> $l10n An array of all currently loaded text domains. 1076 * 1077 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 1078 * @param string|false $path Optional. Path to the directory containing the .mo file. 1079 * Default false. 1080 * @return bool True when textdomain is successfully loaded, false otherwise. 1081 */ 1082 function load_theme_textdomain( $domain, $path = false ) { 1083 /** @var WP_Textdomain_Registry $wp_textdomain_registry */ 1084 /** @var array<string, WP_Translations|NOOP_Translations> $l10n */ 1085 global $wp_textdomain_registry, $l10n; 1086 1087 if ( ! is_string( $domain ) ) { 1088 return false; 1089 } 1090 1091 if ( ! $path ) { 1092 $path = get_template_directory(); 1093 } 1094 1095 $wp_textdomain_registry->set_custom_path( $domain, $path ); 1096 1097 // If just-in-time loading was triggered before, reset the entry so it can be tried again. 1098 if ( isset( $l10n[ $domain ] ) && $l10n[ $domain ] instanceof NOOP_Translations ) { 1099 unset( $l10n[ $domain ] ); 1100 } 1101 1102 return true; 1103 } 1104 1105 /** 1106 * Loads the child theme's translated strings. 1107 * 1108 * If the current locale exists as a .mo file in the child theme's 1109 * root directory, it will be included in the translated strings by the $domain. 1110 * 1111 * The .mo files must be named based on the locale exactly. 1112 * 1113 * @since 2.9.0 1114 * 1115 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 1116 * @param string|false $path Optional. Path to the directory containing the .mo file. 1117 * Default false. 1118 * @return bool True when the theme textdomain is successfully loaded, false otherwise. 1119 */ 1120 function load_child_theme_textdomain( $domain, $path = false ) { 1121 if ( ! $path ) { 1122 $path = get_stylesheet_directory(); 1123 } 1124 return load_theme_textdomain( $domain, $path ); 1125 } 1126 1127 /** 1128 * Loads the script translated strings. 1129 * 1130 * @since 5.0.0 1131 * @since 5.0.2 Uses load_script_translations() to load translation data. 1132 * @since 5.1.0 The `$domain` parameter was made optional. 1133 * 1134 * @see WP_Scripts::set_translations() 1135 * 1136 * @param string $handle Name of the script to register a translation domain to. 1137 * @param string $domain Optional. Text domain. Default 'default'. 1138 * @param string $path Optional. The full file path to the directory containing translation files. 1139 * @return string|false The translated strings in JSON encoding on success, 1140 * false if the script textdomain could not be loaded. 1141 */ 1142 function load_script_textdomain( $handle, $domain = 'default', $path = '' ) { 1143 $wp_scripts = wp_scripts(); 1144 1145 if ( ! isset( $wp_scripts->registered[ $handle ] ) ) { 1146 return false; 1147 } 1148 1149 $path = untrailingslashit( $path ); 1150 $locale = determine_locale(); 1151 1152 // If a path was given and the handle file exists simply return it. 1153 $file_base = 'default' === $domain ? $locale : $domain . '-' . $locale; 1154 $handle_filename = $file_base . '-' . $handle . '.json'; 1155 1156 if ( $path ) { 1157 $translations = load_script_translations( $path . '/' . $handle_filename, $handle, $domain ); 1158 1159 if ( $translations ) { 1160 return $translations; 1161 } 1162 } 1163 1164 $src = $wp_scripts->registered[ $handle ]->src; 1165 1166 if ( ! preg_match( '|^(https?:)?//|', $src ) && ! ( $wp_scripts->content_url && str_starts_with( $src, $wp_scripts->content_url ) ) ) { 1167 $src = $wp_scripts->base_url . $src; 1168 } 1169 1170 $relative = false; 1171 $languages_path = WP_LANG_DIR; 1172 1173 $src_url = wp_parse_url( $src ); 1174 $content_url = wp_parse_url( content_url() ); 1175 $plugins_url = wp_parse_url( plugins_url() ); 1176 $site_url = wp_parse_url( site_url() ); 1177 $theme_root = get_theme_root(); 1178 1179 // If the host is the same or it's a relative URL. 1180 if ( 1181 ( ! isset( $content_url['path'] ) || str_starts_with( $src_url['path'], $content_url['path'] ) ) && 1182 ( ! isset( $src_url['host'] ) || ! isset( $content_url['host'] ) || $src_url['host'] === $content_url['host'] ) 1183 ) { 1184 // Make the src relative the specific plugin or theme. 1185 if ( isset( $content_url['path'] ) ) { 1186 $relative = substr( $src_url['path'], strlen( $content_url['path'] ) ); 1187 } else { 1188 $relative = $src_url['path']; 1189 } 1190 $relative = trim( $relative, '/' ); 1191 $relative = explode( '/', $relative ); 1192 1193 /* 1194 * Ensure correct languages path when using a custom `WP_PLUGIN_DIR` / `WP_PLUGIN_URL` configuration, 1195 * a custom theme root, and/or using Multisite with subdirectories. 1196 * See https://core.trac.wordpress.org/ticket/60891 and https://core.trac.wordpress.org/ticket/62016. 1197 */ 1198 1199 $theme_dir = array_slice( explode( '/', $theme_root ), -1 ); 1200 $dirname = $theme_dir[0] === $relative[0] ? 'themes' : 'plugins'; 1201 1202 $languages_path = WP_LANG_DIR . '/' . $dirname; 1203 1204 $relative = array_slice( $relative, 2 ); // Remove plugins/<plugin name> or themes/<theme name>. 1205 $relative = implode( '/', $relative ); 1206 } elseif ( 1207 ( ! isset( $plugins_url['path'] ) || str_starts_with( $src_url['path'], $plugins_url['path'] ) ) && 1208 ( ! isset( $src_url['host'] ) || ! isset( $plugins_url['host'] ) || $src_url['host'] === $plugins_url['host'] ) 1209 ) { 1210 // Make the src relative the specific plugin. 1211 if ( isset( $plugins_url['path'] ) ) { 1212 $relative = substr( $src_url['path'], strlen( $plugins_url['path'] ) ); 1213 } else { 1214 $relative = $src_url['path']; 1215 } 1216 $relative = trim( $relative, '/' ); 1217 $relative = explode( '/', $relative ); 1218 1219 $languages_path = WP_LANG_DIR . '/plugins'; 1220 1221 $relative = array_slice( $relative, 1 ); // Remove <plugin name>. 1222 $relative = implode( '/', $relative ); 1223 } elseif ( ! isset( $src_url['host'] ) || ! isset( $site_url['host'] ) || $src_url['host'] === $site_url['host'] ) { 1224 if ( ! isset( $site_url['path'] ) ) { 1225 $relative = trim( $src_url['path'], '/' ); 1226 } elseif ( str_starts_with( $src_url['path'], trailingslashit( $site_url['path'] ) ) ) { 1227 // Make the src relative to the WP root. 1228 $relative = substr( $src_url['path'], strlen( $site_url['path'] ) ); 1229 $relative = trim( $relative, '/' ); 1230 } 1231 } 1232 1233 /** 1234 * Filters the relative path of scripts used for finding translation files. 1235 * 1236 * @since 5.0.2 1237 * 1238 * @param string|false $relative The relative path of the script. False if it could not be determined. 1239 * @param string $src The full source URL of the script. 1240 */ 1241 $relative = apply_filters( 'load_script_textdomain_relative_path', $relative, $src ); 1242 1243 // If the source is not from WP. 1244 if ( false === $relative ) { 1245 return load_script_translations( false, $handle, $domain ); 1246 } 1247 1248 // Translations are always based on the unminified filename. 1249 if ( str_ends_with( $relative, '.min.js' ) ) { 1250 $relative = substr( $relative, 0, -7 ) . '.js'; 1251 } 1252 1253 $md5_filename = $file_base . '-' . md5( $relative ) . '.json'; 1254 1255 if ( $path ) { 1256 $translations = load_script_translations( $path . '/' . $md5_filename, $handle, $domain ); 1257 1258 if ( $translations ) { 1259 return $translations; 1260 } 1261 } 1262 1263 $translations = load_script_translations( $languages_path . '/' . $md5_filename, $handle, $domain ); 1264 1265 if ( $translations ) { 1266 return $translations; 1267 } 1268 1269 return load_script_translations( false, $handle, $domain ); 1270 } 1271 1272 /** 1273 * Loads the translation data for the given script handle and text domain. 1274 * 1275 * @since 5.0.2 1276 * 1277 * @param string|false $file Path to the translation file to load. False if there isn't one. 1278 * @param string $handle Name of the script to register a translation domain to. 1279 * @param string $domain The text domain. 1280 * @return string|false The JSON-encoded translated strings for the given script handle and text domain. 1281 * False if there are none. 1282 */ 1283 function load_script_translations( $file, $handle, $domain ) { 1284 /** 1285 * Pre-filters script translations for the given file, script handle and text domain. 1286 * 1287 * Returning a non-null value allows to override the default logic, effectively short-circuiting the function. 1288 * 1289 * @since 5.0.2 1290 * 1291 * @param string|false|null $translations JSON-encoded translation data. Default null. 1292 * @param string|false $file Path to the translation file to load. False if there isn't one. 1293 * @param string $handle Name of the script to register a translation domain to. 1294 * @param string $domain The text domain. 1295 */ 1296 $translations = apply_filters( 'pre_load_script_translations', null, $file, $handle, $domain ); 1297 1298 if ( null !== $translations ) { 1299 return $translations; 1300 } 1301 1302 /** 1303 * Filters the file path for loading script translations for the given script handle and text domain. 1304 * 1305 * @since 5.0.2 1306 * 1307 * @param string|false $file Path to the translation file to load. False if there isn't one. 1308 * @param string $handle Name of the script to register a translation domain to. 1309 * @param string $domain The text domain. 1310 */ 1311 $file = apply_filters( 'load_script_translation_file', $file, $handle, $domain ); 1312 1313 if ( ! $file || ! is_readable( $file ) ) { 1314 return false; 1315 } 1316 1317 $translations = file_get_contents( $file ); 1318 1319 /** 1320 * Filters script translations for the given file, script handle and text domain. 1321 * 1322 * @since 5.0.2 1323 * 1324 * @param string $translations JSON-encoded translation data. 1325 * @param string $file Path to the translation file that was loaded. 1326 * @param string $handle Name of the script to register a translation domain to. 1327 * @param string $domain The text domain. 1328 */ 1329 return apply_filters( 'load_script_translations', $translations, $file, $handle, $domain ); 1330 } 1331 1332 /** 1333 * Loads plugin and theme text domains just-in-time. 1334 * 1335 * When a textdomain is encountered for the first time, we try to load 1336 * the translation file from `wp-content/languages`, removing the need 1337 * to call load_plugin_textdomain() or load_theme_textdomain(). 1338 * 1339 * @since 4.6.0 1340 * @access private 1341 * 1342 * @global MO[] $l10n_unloaded An array of all text domains that have been unloaded again. 1343 * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry. 1344 * 1345 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 1346 * @return bool True when the textdomain is successfully loaded, false otherwise. 1347 */ 1348 function _load_textdomain_just_in_time( $domain ) { 1349 /** @var WP_Textdomain_Registry $wp_textdomain_registry */ 1350 global $l10n_unloaded, $wp_textdomain_registry; 1351 1352 $l10n_unloaded = (array) $l10n_unloaded; 1353 1354 // Short-circuit if domain is 'default' which is reserved for core. 1355 if ( 'default' === $domain || isset( $l10n_unloaded[ $domain ] ) ) { 1356 return false; 1357 } 1358 1359 if ( ! $wp_textdomain_registry->has( $domain ) ) { 1360 return false; 1361 } 1362 1363 $locale = determine_locale(); 1364 $path = $wp_textdomain_registry->get( $domain, $locale ); 1365 if ( ! $path ) { 1366 return false; 1367 } 1368 1369 if ( ! doing_action( 'after_setup_theme' ) && ! did_action( 'after_setup_theme' ) ) { 1370 _doing_it_wrong( 1371 __FUNCTION__, 1372 sprintf( 1373 /* translators: 1: The text domain. 2: 'init'. */ 1374 __( 'Translation loading for the %1$s domain was triggered too early. This is usually an indicator for some code in the plugin or theme running too early. Translations should be loaded at the %2$s action or later.' ), 1375 '<code>' . $domain . '</code>', 1376 '<code>init</code>' 1377 ), 1378 '6.7.0' 1379 ); 1380 } 1381 1382 // Themes with their language directory outside of WP_LANG_DIR have a different file name. 1383 $template_directory = trailingslashit( get_template_directory() ); 1384 $stylesheet_directory = trailingslashit( get_stylesheet_directory() ); 1385 if ( str_starts_with( $path, $template_directory ) || str_starts_with( $path, $stylesheet_directory ) ) { 1386 $mofile = "{$path}{$locale}.mo"; 1387 } else { 1388 $mofile = "{$path}{$domain}-{$locale}.mo"; 1389 } 1390 1391 return load_textdomain( $domain, $mofile, $locale ); 1392 } 1393 1394 /** 1395 * Returns the Translations instance for a text domain. 1396 * 1397 * If there isn't one, returns empty Translations instance. 1398 * 1399 * @since 2.8.0 1400 * 1401 * @global MO[] $l10n An array of all currently loaded text domains. 1402 * 1403 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 1404 * @return Translations|NOOP_Translations A Translations instance. 1405 */ 1406 function get_translations_for_domain( $domain ) { 1407 global $l10n; 1408 if ( isset( $l10n[ $domain ] ) || ( _load_textdomain_just_in_time( $domain ) && isset( $l10n[ $domain ] ) ) ) { 1409 return $l10n[ $domain ]; 1410 } 1411 1412 static $noop_translations = null; 1413 if ( null === $noop_translations ) { 1414 $noop_translations = new NOOP_Translations(); 1415 } 1416 1417 $l10n[ $domain ] = &$noop_translations; 1418 1419 return $noop_translations; 1420 } 1421 1422 /** 1423 * Determines whether there are translations for the text domain. 1424 * 1425 * @since 3.0.0 1426 * 1427 * @global MO[] $l10n An array of all currently loaded text domains. 1428 * 1429 * @param string $domain Text domain. Unique identifier for retrieving translated strings. 1430 * @return bool Whether there are translations. 1431 */ 1432 function is_textdomain_loaded( $domain ) { 1433 global $l10n; 1434 return isset( $l10n[ $domain ] ) && ! $l10n[ $domain ] instanceof NOOP_Translations; 1435 } 1436 1437 /** 1438 * Translates role name. 1439 * 1440 * Since the role names are in the database and not in the source there 1441 * are dummy gettext calls to get them into the POT file and this function 1442 * properly translates them back. 1443 * 1444 * The before_last_bar() call is needed, because older installations keep the roles 1445 * using the old context format: 'Role name|User role' and just skipping the 1446 * content after the last bar is easier than fixing them in the DB. New installations 1447 * won't suffer from that problem. 1448 * 1449 * @since 2.8.0 1450 * @since 5.2.0 Added the `$domain` parameter. 1451 * 1452 * @param string $name The role name. 1453 * @param string $domain Optional. Text domain. Unique identifier for retrieving translated strings. 1454 * Default 'default'. 1455 * @return string Translated role name on success, original name on failure. 1456 */ 1457 function translate_user_role( $name, $domain = 'default' ) { 1458 return translate_with_gettext_context( before_last_bar( $name ), 'User role', $domain ); 1459 } 1460 1461 /** 1462 * Gets all available languages based on the presence of *.mo and *.l10n.php files in a given directory. 1463 * 1464 * The default directory is WP_LANG_DIR. 1465 * 1466 * @since 3.0.0 1467 * @since 4.7.0 The results are now filterable with the {@see 'get_available_languages'} filter. 1468 * @since 6.5.0 The initial file list is now cached and also takes into account *.l10n.php files. 1469 * 1470 * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry. 1471 * 1472 * @param string $dir A directory to search for language files. 1473 * Default WP_LANG_DIR. 1474 * @return string[] An array of language codes or an empty array if no languages are present. 1475 * Language codes are formed by stripping the file extension from the language file names. 1476 */ 1477 function get_available_languages( $dir = null ) { 1478 global $wp_textdomain_registry; 1479 1480 $languages = array(); 1481 1482 $path = is_null( $dir ) ? WP_LANG_DIR : $dir; 1483 $lang_files = $wp_textdomain_registry->get_language_files_from_path( $path ); 1484 1485 if ( $lang_files ) { 1486 foreach ( $lang_files as $lang_file ) { 1487 $lang_file = basename( $lang_file, '.mo' ); 1488 $lang_file = basename( $lang_file, '.l10n.php' ); 1489 1490 if ( ! str_starts_with( $lang_file, 'continents-cities' ) && ! str_starts_with( $lang_file, 'ms-' ) && 1491 ! str_starts_with( $lang_file, 'admin-' ) ) { 1492 $languages[] = $lang_file; 1493 } 1494 } 1495 } 1496 1497 /** 1498 * Filters the list of available language codes. 1499 * 1500 * @since 4.7.0 1501 * 1502 * @param string[] $languages An array of available language codes. 1503 * @param string $dir The directory where the language files were found. 1504 */ 1505 return apply_filters( 'get_available_languages', array_unique( $languages ), $dir ); 1506 } 1507 1508 /** 1509 * Gets installed translations. 1510 * 1511 * Looks in the wp-content/languages directory for translations of 1512 * plugins or themes. 1513 * 1514 * @since 3.7.0 1515 * 1516 * @global WP_Textdomain_Registry $wp_textdomain_registry WordPress Textdomain Registry. 1517 * 1518 * @param string $type What to search for. Accepts 'plugins', 'themes', 'core'. 1519 * @return array Array of language data. 1520 */ 1521 function wp_get_installed_translations( $type ) { 1522 global $wp_textdomain_registry; 1523 1524 if ( 'themes' !== $type && 'plugins' !== $type && 'core' !== $type ) { 1525 return array(); 1526 } 1527 1528 $dir = 'core' === $type ? WP_LANG_DIR : WP_LANG_DIR . "/$type"; 1529 1530 if ( ! is_dir( $dir ) ) { 1531 return array(); 1532 } 1533 1534 $files = $wp_textdomain_registry->get_language_files_from_path( $dir ); 1535 if ( ! $files ) { 1536 return array(); 1537 } 1538 1539 $language_data = array(); 1540 1541 foreach ( $files as $file ) { 1542 if ( ! preg_match( '/(?:(.+)-)?([a-z]{2,3}(?:_[A-Z]{2})?(?:_[a-z0-9]+)?)\.(?:mo|l10n\.php)/', basename( $file ), $match ) ) { 1543 continue; 1544 } 1545 1546 list( , $textdomain, $language ) = $match; 1547 if ( '' === $textdomain ) { 1548 $textdomain = 'default'; 1549 } 1550 1551 if ( str_ends_with( $file, '.mo' ) ) { 1552 $pofile = substr_replace( $file, '.po', - strlen( '.mo' ) ); 1553 1554 if ( ! file_exists( $pofile ) ) { 1555 continue; 1556 } 1557 1558 $language_data[ $textdomain ][ $language ] = wp_get_pomo_file_data( $pofile ); 1559 } else { 1560 $pofile = substr_replace( $file, '.po', - strlen( '.l10n.php' ) ); 1561 1562 // If both a PO and a PHP file exist, prefer the PO file. 1563 if ( file_exists( $pofile ) ) { 1564 continue; 1565 } 1566 1567 $language_data[ $textdomain ][ $language ] = wp_get_l10n_php_file_data( $file ); 1568 } 1569 } 1570 return $language_data; 1571 } 1572 1573 /** 1574 * Extracts headers from a PO file. 1575 * 1576 * @since 3.7.0 1577 * 1578 * @param string $po_file Path to PO file. 1579 * @return string[] Array of PO file header values keyed by header name. 1580 */ 1581 function wp_get_pomo_file_data( $po_file ) { 1582 $headers = get_file_data( 1583 $po_file, 1584 array( 1585 'POT-Creation-Date' => '"POT-Creation-Date', 1586 'PO-Revision-Date' => '"PO-Revision-Date', 1587 'Project-Id-Version' => '"Project-Id-Version', 1588 'X-Generator' => '"X-Generator', 1589 ) 1590 ); 1591 foreach ( $headers as $header => $value ) { 1592 // Remove possible contextual '\n' and closing double quote. 1593 $headers[ $header ] = preg_replace( '~(\\\n)?"$~', '', $value ); 1594 } 1595 return $headers; 1596 } 1597 1598 /** 1599 * Extracts headers from a PHP translation file. 1600 * 1601 * @since 6.6.0 1602 * 1603 * @param string $php_file Path to a `.l10n.php` file. 1604 * @return string[] Array of file header values keyed by header name. 1605 */ 1606 function wp_get_l10n_php_file_data( $php_file ) { 1607 $data = (array) include $php_file; 1608 1609 unset( $data['messages'] ); 1610 $headers = array( 1611 'POT-Creation-Date' => 'pot-creation-date', 1612 'PO-Revision-Date' => 'po-revision-date', 1613 'Project-Id-Version' => 'project-id-version', 1614 'X-Generator' => 'x-generator', 1615 ); 1616 1617 $result = array( 1618 'POT-Creation-Date' => '', 1619 'PO-Revision-Date' => '', 1620 'Project-Id-Version' => '', 1621 'X-Generator' => '', 1622 ); 1623 1624 foreach ( $headers as $po_header => $php_header ) { 1625 if ( isset( $data[ $php_header ] ) ) { 1626 $result[ $po_header ] = $data[ $php_header ]; 1627 } 1628 } 1629 1630 return $result; 1631 } 1632 1633 /** 1634 * Displays or returns a Language selector. 1635 * 1636 * @since 4.0.0 1637 * @since 4.3.0 Introduced the `echo` argument. 1638 * @since 4.7.0 Introduced the `show_option_site_default` argument. 1639 * @since 5.1.0 Introduced the `show_option_en_us` argument. 1640 * @since 5.9.0 Introduced the `explicit_option_en_us` argument. 1641 * 1642 * @see get_available_languages() 1643 * @see wp_get_available_translations() 1644 * 1645 * @param string|array $args { 1646 * Optional. Array or string of arguments for outputting the language selector. 1647 * 1648 * @type string $id ID attribute of the select element. Default 'locale'. 1649 * @type string $name Name attribute of the select element. Default 'locale'. 1650 * @type string[] $languages List of installed languages, contain only the locales. 1651 * Default empty array. 1652 * @type array $translations List of available translations. Default result of 1653 * wp_get_available_translations(). 1654 * @type string $selected Language which should be selected. Default empty. 1655 * @type bool|int $echo Whether to echo the generated markup. Accepts 0, 1, or their 1656 * boolean equivalents. Default 1. 1657 * @type bool $show_available_translations Whether to show available translations. Default true. 1658 * @type bool $show_option_site_default Whether to show an option to fall back to the site's locale. Default false. 1659 * @type bool $show_option_en_us Whether to show an option for English (United States). Default true. 1660 * @type bool $explicit_option_en_us Whether the English (United States) option uses an explicit value of en_US 1661 * instead of an empty value. Default false. 1662 * } 1663 * @return string HTML dropdown list of languages. 1664 */ 1665 function wp_dropdown_languages( $args = array() ) { 1666 1667 $parsed_args = wp_parse_args( 1668 $args, 1669 array( 1670 'id' => 'locale', 1671 'name' => 'locale', 1672 'languages' => array(), 1673 'translations' => array(), 1674 'selected' => '', 1675 'echo' => 1, 1676 'show_available_translations' => true, 1677 'show_option_site_default' => false, 1678 'show_option_en_us' => true, 1679 'explicit_option_en_us' => false, 1680 ) 1681 ); 1682 1683 // Bail if no ID or no name. 1684 if ( ! $parsed_args['id'] || ! $parsed_args['name'] ) { 1685 return; 1686 } 1687 1688 // English (United States) uses an empty string for the value attribute. 1689 if ( 'en_US' === $parsed_args['selected'] && ! $parsed_args['explicit_option_en_us'] ) { 1690 $parsed_args['selected'] = ''; 1691 } 1692 1693 $translations = $parsed_args['translations']; 1694 if ( empty( $translations ) ) { 1695 require_once ABSPATH . 'wp-admin/includes/translation-install.php'; 1696 $translations = wp_get_available_translations(); 1697 } 1698 1699 /* 1700 * $parsed_args['languages'] should only contain the locales. Find the locale in 1701 * $translations to get the native name. Fall back to locale. 1702 */ 1703 $languages = array(); 1704 foreach ( $parsed_args['languages'] as $locale ) { 1705 if ( isset( $translations[ $locale ] ) ) { 1706 $translation = $translations[ $locale ]; 1707 $languages[] = array( 1708 'language' => $translation['language'], 1709 'native_name' => $translation['native_name'], 1710 'lang' => current( $translation['iso'] ), 1711 ); 1712 1713 // Remove installed language from available translations. 1714 unset( $translations[ $locale ] ); 1715 } else { 1716 $languages[] = array( 1717 'language' => $locale, 1718 'native_name' => $locale, 1719 'lang' => '', 1720 ); 1721 } 1722 } 1723 1724 $translations_available = ( ! empty( $translations ) && $parsed_args['show_available_translations'] ); 1725 1726 // Holds the HTML markup. 1727 $structure = array(); 1728 1729 // List installed languages. 1730 if ( $translations_available ) { 1731 $structure[] = '<optgroup label="' . esc_attr_x( 'Installed', 'translations' ) . '">'; 1732 } 1733 1734 // Site default. 1735 if ( $parsed_args['show_option_site_default'] ) { 1736 $structure[] = sprintf( 1737 '<option value="site-default" data-installed="1"%s>%s</option>', 1738 selected( 'site-default', $parsed_args['selected'], false ), 1739 _x( 'Site Default', 'default site language' ) 1740 ); 1741 } 1742 1743 if ( $parsed_args['show_option_en_us'] ) { 1744 $value = ( $parsed_args['explicit_option_en_us'] ) ? 'en_US' : ''; 1745 $structure[] = sprintf( 1746 '<option value="%s" lang="en" data-installed="1"%s>English (United States)</option>', 1747 esc_attr( $value ), 1748 selected( '', $parsed_args['selected'], false ) 1749 ); 1750 } 1751 1752 // List installed languages. 1753 foreach ( $languages as $language ) { 1754 $structure[] = sprintf( 1755 '<option value="%s" lang="%s"%s data-installed="1">%s</option>', 1756 esc_attr( $language['language'] ), 1757 esc_attr( $language['lang'] ), 1758 selected( $language['language'], $parsed_args['selected'], false ), 1759 esc_html( $language['native_name'] ) 1760 ); 1761 } 1762 if ( $translations_available ) { 1763 $structure[] = '</optgroup>'; 1764 } 1765 1766 // List available translations. 1767 if ( $translations_available ) { 1768 $structure[] = '<optgroup label="' . esc_attr_x( 'Available', 'translations' ) . '">'; 1769 foreach ( $translations as $translation ) { 1770 $structure[] = sprintf( 1771 '<option value="%s" lang="%s"%s>%s</option>', 1772 esc_attr( $translation['language'] ), 1773 esc_attr( current( $translation['iso'] ) ), 1774 selected( $translation['language'], $parsed_args['selected'], false ), 1775 esc_html( $translation['native_name'] ) 1776 ); 1777 } 1778 $structure[] = '</optgroup>'; 1779 } 1780 1781 // Combine the output string. 1782 $output = sprintf( '<select name="%s" id="%s">', esc_attr( $parsed_args['name'] ), esc_attr( $parsed_args['id'] ) ); 1783 $output .= implode( "\n", $structure ); 1784 $output .= '</select>'; 1785 1786 if ( $parsed_args['echo'] ) { 1787 echo $output; 1788 } 1789 1790 return $output; 1791 } 1792 1793 /** 1794 * Determines whether the current locale is right-to-left (RTL). 1795 * 1796 * For more information on this and similar theme functions, check out 1797 * the {@link https://developer.wordpress.org/themes/basics/conditional-tags/ 1798 * Conditional Tags} article in the Theme Developer Handbook. 1799 * 1800 * @since 3.0.0 1801 * 1802 * @global WP_Locale $wp_locale WordPress date and time locale object. 1803 * 1804 * @return bool Whether locale is RTL. 1805 */ 1806 function is_rtl() { 1807 global $wp_locale; 1808 if ( ! ( $wp_locale instanceof WP_Locale ) ) { 1809 return false; 1810 } 1811 return $wp_locale->is_rtl(); 1812 } 1813 1814 /** 1815 * Switches the translations according to the given locale. 1816 * 1817 * @since 4.7.0 1818 * 1819 * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object. 1820 * 1821 * @param string $locale The locale. 1822 * @return bool True on success, false on failure. 1823 */ 1824 function switch_to_locale( $locale ) { 1825 /* @var WP_Locale_Switcher $wp_locale_switcher */ 1826 global $wp_locale_switcher; 1827 1828 if ( ! $wp_locale_switcher ) { 1829 return false; 1830 } 1831 1832 return $wp_locale_switcher->switch_to_locale( $locale ); 1833 } 1834 1835 /** 1836 * Switches the translations according to the given user's locale. 1837 * 1838 * @since 6.2.0 1839 * 1840 * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object. 1841 * 1842 * @param int $user_id User ID. 1843 * @return bool True on success, false on failure. 1844 */ 1845 function switch_to_user_locale( $user_id ) { 1846 /* @var WP_Locale_Switcher $wp_locale_switcher */ 1847 global $wp_locale_switcher; 1848 1849 if ( ! $wp_locale_switcher ) { 1850 return false; 1851 } 1852 1853 return $wp_locale_switcher->switch_to_user_locale( $user_id ); 1854 } 1855 1856 /** 1857 * Restores the translations according to the previous locale. 1858 * 1859 * @since 4.7.0 1860 * 1861 * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object. 1862 * 1863 * @return string|false Locale on success, false on error. 1864 */ 1865 function restore_previous_locale() { 1866 /* @var WP_Locale_Switcher $wp_locale_switcher */ 1867 global $wp_locale_switcher; 1868 1869 if ( ! $wp_locale_switcher ) { 1870 return false; 1871 } 1872 1873 return $wp_locale_switcher->restore_previous_locale(); 1874 } 1875 1876 /** 1877 * Restores the translations according to the original locale. 1878 * 1879 * @since 4.7.0 1880 * 1881 * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object. 1882 * 1883 * @return string|false Locale on success, false on error. 1884 */ 1885 function restore_current_locale() { 1886 /* @var WP_Locale_Switcher $wp_locale_switcher */ 1887 global $wp_locale_switcher; 1888 1889 if ( ! $wp_locale_switcher ) { 1890 return false; 1891 } 1892 1893 return $wp_locale_switcher->restore_current_locale(); 1894 } 1895 1896 /** 1897 * Determines whether switch_to_locale() is in effect. 1898 * 1899 * @since 4.7.0 1900 * 1901 * @global WP_Locale_Switcher $wp_locale_switcher WordPress locale switcher object. 1902 * 1903 * @return bool True if the locale has been switched, false otherwise. 1904 */ 1905 function is_locale_switched() { 1906 /* @var WP_Locale_Switcher $wp_locale_switcher */ 1907 global $wp_locale_switcher; 1908 1909 return $wp_locale_switcher->is_switched(); 1910 } 1911 1912 /** 1913 * Translates the provided settings value using its i18n schema. 1914 * 1915 * @since 5.9.0 1916 * @access private 1917 * 1918 * @param string|string[]|array[]|object $i18n_schema I18n schema for the setting. 1919 * @param string|string[]|array[] $settings Value for the settings. 1920 * @param string $textdomain Textdomain to use with translations. 1921 * 1922 * @return string|string[]|array[] Translated settings. 1923 */ 1924 function translate_settings_using_i18n_schema( $i18n_schema, $settings, $textdomain ) { 1925 if ( empty( $i18n_schema ) || empty( $settings ) || empty( $textdomain ) ) { 1926 return $settings; 1927 } 1928 1929 if ( is_string( $i18n_schema ) && is_string( $settings ) ) { 1930 return translate_with_gettext_context( $settings, $i18n_schema, $textdomain ); 1931 } 1932 if ( is_array( $i18n_schema ) && is_array( $settings ) ) { 1933 $translated_settings = array(); 1934 foreach ( $settings as $value ) { 1935 $translated_settings[] = translate_settings_using_i18n_schema( $i18n_schema[0], $value, $textdomain ); 1936 } 1937 return $translated_settings; 1938 } 1939 if ( is_object( $i18n_schema ) && is_array( $settings ) ) { 1940 $group_key = '*'; 1941 $translated_settings = array(); 1942 foreach ( $settings as $key => $value ) { 1943 if ( isset( $i18n_schema->$key ) ) { 1944 $translated_settings[ $key ] = translate_settings_using_i18n_schema( $i18n_schema->$key, $value, $textdomain ); 1945 } elseif ( isset( $i18n_schema->$group_key ) ) { 1946 $translated_settings[ $key ] = translate_settings_using_i18n_schema( $i18n_schema->$group_key, $value, $textdomain ); 1947 } else { 1948 $translated_settings[ $key ] = $value; 1949 } 1950 } 1951 return $translated_settings; 1952 } 1953 return $settings; 1954 } 1955 1956 /** 1957 * Retrieves the list item separator based on the locale. 1958 * 1959 * @since 6.0.0 1960 * 1961 * @global WP_Locale $wp_locale WordPress date and time locale object. 1962 * 1963 * @return string Locale-specific list item separator. 1964 */ 1965 function wp_get_list_item_separator() { 1966 global $wp_locale; 1967 1968 if ( ! ( $wp_locale instanceof WP_Locale ) ) { 1969 // Default value of WP_Locale::get_list_item_separator(). 1970 /* translators: Used between list items, there is a space after the comma. */ 1971 return __( ', ' ); 1972 } 1973 1974 return $wp_locale->get_list_item_separator(); 1975 } 1976 1977 /** 1978 * Retrieves the word count type based on the locale. 1979 * 1980 * @since 6.2.0 1981 * 1982 * @global WP_Locale $wp_locale WordPress date and time locale object. 1983 * 1984 * @return string Locale-specific word count type. Possible values are `characters_excluding_spaces`, 1985 * `characters_including_spaces`, or `words`. Defaults to `words`. 1986 */ 1987 function wp_get_word_count_type() { 1988 global $wp_locale; 1989 1990 if ( ! ( $wp_locale instanceof WP_Locale ) ) { 1991 // Default value of WP_Locale::get_word_count_type(). 1992 return 'words'; 1993 } 1994 1995 return $wp_locale->get_word_count_type(); 1996 } 1997 1998 /** 1999 * Returns a boolean to indicate whether a translation exists for a given string with optional text domain and locale. 2000 * 2001 * @since 6.7.0 2002 * 2003 * @param string $singular Singular translation to check. 2004 * @param string $textdomain Optional. Text domain. Default 'default'. 2005 * @param ?string $locale Optional. Locale. Default current locale. 2006 * @return bool True if the translation exists, false otherwise. 2007 */ 2008 function has_translation( string $singular, string $textdomain = 'default', ?string $locale = null ): bool { 2009 return WP_Translation_Controller::get_instance()->has_translation( $singular, $textdomain, $locale ); 2010 }
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