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do_action( "hook_name" )apply_filters( "hook_name", "what_to_filter" ).Remember, this hook may occur in more than one file. Moreover, the hook's context may change from version to version.
| Line | Code |
|---|---|
| 436 | |
| 437 | /** |
| 438 | * Filters whether to get the cache of the registered theme directories. |
| 439 | * |
| 440 | * @since 3.4.0 |
| 441 | * |
| 442 | * @param bool $cache_expiration Whether to get the cache of the theme directories. Default false. |
| 443 | * @param string $cache_directory Directory to be searched for the cache. |
| 444 | */ |
| 445 | if ( $cache_expiration = apply_filters( 'wp_cache_themes_persistently', false, 'search_theme_directories' ) ) { |
| 446 | $cached_roots = get_site_transient( 'theme_roots' ); |
| 447 | if ( is_array( $cached_roots ) ) { |
| 448 | foreach ( $cached_roots as $theme_dir => $theme_root ) { |
| 449 | // A cached theme root is no longer around, so skip it. |
| 450 | if ( ! isset( $relative_theme_roots[ $theme_root ] ) ) |
| 451 | continue; |
| 452 | $found_themes[ $theme_dir ] = array( |
| 453 | 'theme_file' => $theme_dir . '/style.css', |
| 454 | 'theme_root' => $relative_theme_roots[ $theme_root ], // Convert relative to absolute. |