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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 |
|---|---|
| 4313 | * |
| 4314 | * @param int $id Page ID to clean |
| 4315 | */ |
| 4316 | function clean_page_cache($id) { |
| 4317 | clean_post_cache($id); |
| 4318 | |
| 4319 | wp_cache_delete( 'all_page_ids', 'posts' ); |
| 4320 | wp_cache_delete( 'get_pages', 'posts' ); |
| 4321 | |
| 4322 | do_action('clean_page_cache', $id); |
| 4323 | } |
| 4324 | |
| 4325 | /** |
| 4326 | * Call major cache updating functions for list of Post objects. |
| 4327 | * |
| 4328 | * @package WordPress |
| 4329 | * @subpackage Cache |
| 4330 | * @since 1.5.0 |
| 4331 | * |