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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 |
|---|---|
| 16 | require( dirname(__FILE__) . '/wp-load.php' ); |
| 17 | |
| 18 | nocache_headers(); |
| 19 | |
| 20 | $comment_post_ID = isset($_POST['comment_post_ID']) ? (int) $_POST['comment_post_ID'] : 0; |
| 21 | |
| 22 | $post = get_post($comment_post_ID); |
| 23 | |
| 24 | if ( empty($post->comment_status) ) { |
| 25 | do_action('comment_id_not_found', $comment_post_ID); |
| 26 | exit; |
| 27 | } |
| 28 | |
| 29 | // get_post_status() will get the parent status for attachments. |
| 30 | $status = get_post_status($post); |
| 31 | |
| 32 | $status_obj = get_post_status_object($status); |
| 33 | |
| 34 | if ( !comments_open($comment_post_ID) ) { |