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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 |
|---|---|
| 4385 | * |
| 4386 | * @param int $id Page ID to clean |
| 4387 | */ |
| 4388 | function clean_page_cache($id) { |
| 4389 | clean_post_cache($id); |
| 4390 | |
| 4391 | wp_cache_delete( 'all_page_ids', 'posts' ); |
| 4392 | wp_cache_delete( 'get_pages', 'posts' ); |
| 4393 | |
| 4394 | do_action('clean_page_cache', $id); |
| 4395 | } |
| 4396 | |
| 4397 | /** |
| 4398 | * Call major cache updating functions for list of Post objects. |
| 4399 | * |
| 4400 | * @package WordPress |
| 4401 | * @subpackage Cache |
| 4402 | * @since 1.5.0 |
| 4403 | * |