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Source View: clean_post_cache

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Understanding Source Code

The best way to understand what a hook does is to look at where it occurs in the source code.

  • Action hooks look like this: do_action( "hook_name" )
  • Filter hooks look like this: 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.

Source View

Line Code
4334           return;
4335
4336      wp_cache_delete($id, 'posts');
4337      wp_cache_delete($id, 'post_meta');
4338
4339      clean_object_term_cache($id, 'post');
4340
4341      wp_cache_delete( 'wp_get_archives', 'general' );
4342
4343      do_action('clean_post_cache', $id);
4344
4345      if ( $children = $wpdb->get_col( $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_parent = %d", $id) ) ) {
4346           foreach ( $children as $cid ) {
4347                // Loop detection
4348                if ( $cid == $id )
4349                     continue;
4350                clean_post_cache( $cid );
4351           }
4352      }