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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 |
|---|---|
| 489 | $wpdb->query("UPDATE $wpdb->posts SET comment_count = $count WHERE ID = '$post_id'"); |
| 490 | $comment_count_cache[$post_id] = $count; |
| 491 | |
| 492 | $post = get_post($post_id); |
| 493 | if ( 'page' == $post->post_type ) |
| 494 | clean_page_cache( $post_id ); |
| 495 | else |
| 496 | clean_post_cache( $post_id ); |
| 497 | |
| 498 | do_action('edit_post', $post_id); |
| 499 | |
| 500 | return true; |
| 501 | } |
| 502 | |
| 503 | |
| 504 | // |
| 505 | // Ping and trackback functions. |
| 506 | // |
| 507 | |