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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 |
|---|---|
| 7357 | |
| 7358 | /** |
| 7359 | * Fires immediately after the given post's cache is cleaned. |
| 7360 | * |
| 7361 | * @since 2.5.0 |
| 7362 | * |
| 7363 | * @param int $post_id Post ID. |
| 7364 | * @param WP_Post $post Post object. |
| 7365 | */ |
| 7366 | do_action( 'clean_post_cache', $post->ID, $post ); |
| 7367 | |
| 7368 | if ( 'page' === $post->post_type ) { |
| 7369 | wp_cache_delete( 'all_page_ids', 'posts' ); |
| 7370 | |
| 7371 | /** |
| 7372 | * Fires immediately after the given page's cache is cleaned. |
| 7373 | * |
| 7374 | * @since 2.5.0 |
| 7375 | * |