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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 |
|---|---|
| 7188 | wp_cache_delete( 'all_page_ids', 'posts' ); |
| 7189 | |
| 7190 | /** |
| 7191 | * Fires immediately after the given page's cache is cleaned. |
| 7192 | * |
| 7193 | * @since 2.5.0 |
| 7194 | * |
| 7195 | * @param int $post_id Post ID. |
| 7196 | */ |
| 7197 | do_action( 'clean_page_cache', $post->ID ); |
| 7198 | } |
| 7199 | |
| 7200 | wp_cache_set( 'last_changed', microtime(), 'posts' ); |
| 7201 | } |
| 7202 | |
| 7203 | /** |
| 7204 | * Call major cache updating functions for list of Post objects. |
| 7205 | * |
| 7206 | * @since 1.5.0 |