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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 |
|---|---|
| 5321 | wp_cache_delete( 'all_page_ids', 'posts' ); |
| 5322 | |
| 5323 | /** |
| 5324 | * Fires immediately after the given page's cache is cleaned. |
| 5325 | * |
| 5326 | * @since 2.5.0 |
| 5327 | * |
| 5328 | * @param int $post_id Post ID. |
| 5329 | */ |
| 5330 | do_action( 'clean_page_cache', $post->ID ); |
| 5331 | } |
| 5332 | |
| 5333 | wp_cache_set( 'last_changed', microtime(), 'posts' ); |
| 5334 | } |
| 5335 | |
| 5336 | /** |
| 5337 | * Call major cache updating functions for list of Post objects. |
| 5338 | * |
| 5339 | * @since 1.5.0 |