wp_count_comments( int $post_id )
检索整个网站或单个帖子的评论总数。
Retrieves the total comment counts for the whole site or a single post.
目录锚点:#说明#参数#源码#笔记
如果注释统计信息已经存在于缓存中,则缓存并检索注释统计信息。另请参见#另请参阅get_comment_count():它处理获取实时评论计数。
参数 | 类型 | 说明 |
$post_id |
(int) |
将评论计数限制为给定的帖子。默认值为0,表示将检索整个网站的评论计数。 |
/**
* Retrieve total comments for blog or single post.
*
* The properties of the returned object contain the 'moderated', 'approved',
* and spam comments for either the entire blog or single post. Those properties
* contain the amount of comments that match the status. The 'total_comments'
* property contains the integer of total comments.
*
* The comment stats are cached and then retrieved, if they already exist in the
* cache.
*
* @since 2.5.0
*
* @global wpdb $wpdb
*
* @param int $post_id Optional. Post ID.
* @return object|array Comment stats.
*/
function wp_count_comments( $post_id = 0 ) {
global $wpdb;
$post_id = (int) $post_id;
/**
* Filter the comments count for a given post.
*
* @since 2.7.0
*
* @param array $count An empty array.
* @param int $post_id The post ID.
*/
$stats = apply_filters( 'wp_count_comments', array(), $post_id );
if ( !empty($stats) )
return $stats;
$count = wp_cache_get("comments-{$post_id}", 'counts');
if ( false !== $count )
return $count;
$where = '';
if ( $post_id > 0 )
$where = $wpdb->prepare( "WHERE comment_post_ID = %d", $post_id );
$count = $wpdb->get_results( "SELECT comment_approved, COUNT( * ) AS num_comments FROM {$wpdb->comments} {$where} GROUP BY comment_approved", ARRAY_A );
$total = 0;
$approved = array('0' => 'moderated', '1' => 'approved', 'spam' => 'spam', 'trash' => 'trash', 'post-trashed' => 'post-trashed');
foreach ( (array) $count as $row ) {
// Don't count post-trashed toward totals
if ( 'post-trashed' != $row['comment_approved'] && 'trash' != $row['comment_approved'] )
$total += $row['num_comments'];
if ( isset( $approved[$row['comment_approved']] ) )
$stats[$approved[$row['comment_approved']]] = $row['num_comments'];
}
$stats['total_comments'] = $total;
foreach ( $approved as $key ) {
if ( empty($stats[$key]) )
$stats[$key] = 0;
}
$stats = (object) $stats;
wp_cache_set("comments-{$post_id}", $stats, 'counts');
return $stats;
}
更新版本 |
源码位置 |
使用 |
被使用 |
2.5.0 |
wp-includes/comment.php |
7 |
16 |
检索帖子的评论数
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