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The best way to understand what a hook does is to look at where it occurs in the source code.
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 |
|---|---|
| 7437 | wp_cache_delete( 'all_page_ids', 'posts' ); |
| 7438 | |
| 7439 | /** |
| 7440 | * Fires immediately after the given page's cache is cleaned. |
| 7441 | * |
| 7442 | * @since 2.5.0 |
| 7443 | * |
| 7444 | * @param int $post_id Post ID. |
| 7445 | */ |
| 7446 | do_action( 'clean_page_cache', $post->ID ); |
| 7447 | } |
| 7448 | |
| 7449 | wp_cache_set_posts_last_changed(); |
| 7450 | } |
| 7451 | |
| 7452 | /** |
| 7453 | * Updates post, term, and metadata caches for a list of post objects. |
| 7454 | * |
| 7455 | * @since 1.5.0 |