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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 |
|---|---|
| 1075 | |
| 1076 | foreach ( (array) $children as $child ) |
| 1077 | clean_page_cache($child->ID); |
| 1078 | |
| 1079 | $wp_rewrite->flush_rules(); |
| 1080 | } else { |
| 1081 | clean_post_cache($postid); |
| 1082 | } |
| 1083 | |
| 1084 | do_action('deleted_post', $postid); |
| 1085 | |
| 1086 | return $post; |
| 1087 | } |
| 1088 | |
| 1089 | /** |
| 1090 | * wp_get_post_categories() - Retrieve the list of categories for a post |
| 1091 | * |
| 1092 | * Compatibility layer for themes and plugins. Also an easy layer of abstraction |
| 1093 | * away from the complexity of the taxonomy layer. |