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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 |
---|---|
519 | if ( !$post_id ) |
520 | $post_id = (int) $id; |
521 |
|
522 | $post = get_post($post_id); |
523 | if ( ! isset($post->comment_count) ) |
524 | $count = 0; |
525 | else |
526 | $count = $post->comment_count; |
527 |
|
528 | return apply_filters('get_comments_number', $count); |
529 | } |
530 |
|
531 | /** |
532 | * Display the language string for the number of comments the current post has. |
533 | * |
534 | * @since 0.71 |
535 | * @uses $id |
536 | * @uses apply_filters() Calls the 'comments_number' hook on the output and number of comments respectively. |
537 | * |