February 12, 2011 
Definition:
function get_comments_number( $post_id = 0 ) {}
Retrieve the amount of comments a post has.
Parameters
- int $post_id: The Post ID
Return values
returns:The number of comments a post has
Defined filters
- get_comments_number
apply_filters('get_comments_number', $count, $post_id)
Source code
function get_comments_number( $post_id = 0 ) {
$post_id = absint( $post_id );
if ( !$post_id )
$post_id = get_the_ID();
$post = get_post($post_id);
if ( ! isset($post->comment_count) )
$count = 0;
else
$count = $post->comment_count;
return apply_filters('get_comments_number', $count, $post_id);
}
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