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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 |
---|---|
2569 | * |
2570 | * @since 2.3.0 |
2571 | * |
2572 | * @param int $post_id Post ID. |
2573 | * @param int $new The new comment count. |
2574 | * @param int $old The old comment count. |
2575 | */ |
2576 | do_action( 'wp_update_comment_count', $post_id, $new, $old ); |
2577 | /** This action is documented in wp-includes/post.php */ |
2578 | do_action( 'edit_post', $post_id, $post ); |
2579 |
|
2580 | return true; |
2581 | } |
2582 |
|
2583 | // |
2584 | // Ping and trackback functions. |
2585 | // |
2586 |
|
2587 | /** |