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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 |
|---|---|
| 2845 | * |
| 2846 | * @param int $id Page ID to clean |
| 2847 | */ |
| 2848 | function clean_page_cache($id) { |
| 2849 | clean_post_cache($id); |
| 2850 | |
| 2851 | wp_cache_delete( 'all_page_ids', 'posts' ); |
| 2852 | wp_cache_delete( 'get_pages', 'posts' ); |
| 2853 | |
| 2854 | do_action('clean_page_cache', $id); |
| 2855 | } |
| 2856 | |
| 2857 | /** |
| 2858 | * update_post_caches() - Call major cache updating functions for list of Post objects. |
| 2859 | * |
| 2860 | * @package WordPress |
| 2861 | * @subpackage Cache |
| 2862 | * @since 1.5 |
| 2863 | * |