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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 |
|---|---|
| 39 | return $url; |
| 40 | } |
| 41 | |
| 42 | function get_comments_number( $comment_id ) { |
| 43 | global $wpdb, $comment_count_cache; |
| 44 | $comment_id = (int) $comment_id; |
| 45 | if (!isset($comment_count_cache[$comment_id])) |
| 46 | $comment_count_cache[$comment_id] = $wpdb->get_var("SELECT COUNT(*) FROM $wpdb->comments WHERE comment_post_ID = '$comment_id' AND comment_approved = '1'"); |
| 47 | |
| 48 | return apply_filters('get_comments_number', $comment_count_cache[$comment_id]); |
| 49 | } |
| 50 | |
| 51 | function comments_number( $zero = 'No Comments', $one = '1 Comment', $more = '% Comments', $number = '' ) { |
| 52 | global $id, $comment; |
| 53 | $number = get_comments_number( $id ); |
| 54 | if ($number == 0) { |
| 55 | $blah = $zero; |
| 56 | } elseif ($number == 1) { |
| 57 | $blah = $one; |