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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 |
---|---|
6621 | wp_cache_delete( 'all_page_ids', 'posts' ); |
6622 |
|
6623 | /** |
6624 | * Fires immediately after the given page's cache is cleaned. |
6625 | * |
6626 | * @since 2.5.0 |
6627 | * |
6628 | * @param int $post_id Post ID. |
6629 | */ |
6630 | do_action( 'clean_page_cache', $post->ID ); |
6631 | } |
6632 |
|
6633 | wp_cache_set( 'last_changed', microtime(), 'posts' ); |
6634 | } |
6635 |
|
6636 | /** |
6637 | * Call major cache updating functions for list of Post objects. |
6638 | * |
6639 | * @since 1.5.0 |