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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 |
---|---|
5306 |
|
5307 | /** |
5308 | * Fires immediately after the given post's cache is cleaned. |
5309 | * |
5310 | * @since 2.5.0 |
5311 | * |
5312 | * @param int $post_id Post ID. |
5313 | * @param WP_Post $post Post object. |
5314 | */ |
5315 | do_action( 'clean_post_cache', $post->ID, $post ); |
5316 |
|
5317 | if ( is_post_type_hierarchical( $post->post_type ) ) |
5318 | wp_cache_delete( 'get_pages', 'posts' ); |
5319 |
|
5320 | if ( 'page' == $post->post_type ) { |
5321 | wp_cache_delete( 'all_page_ids', 'posts' ); |
5322 |
|
5323 | /** |
5324 | * Fires immediately after the given page's cache is cleaned. |