wp-includes/class-wp-comment-query.php:1009Populates found_comments and max_num_pages properties for the current query if the limit clause was used.
One hook fires while WP_Comment_Query::set_found_comments() runs, in this order:
Filters the query used to retrieve found comment count.
private function set_found_comments() { global $wpdb; if ( $this->query_vars['number'] && ! $this->query_vars['no_found_rows'] ) { /** * Filters the query used to retrieve found comment count. * * @since 4.4.0 * * @param string $found_comments_query SQL query. Default 'SELECT FOUND_ROWS()'. * @param WP_Comment_Query $comment_query The `WP_Comment_Query` instance. */ $found_comments_query = apply_filters( 'found_comments_query', 'SELECT FOUND_ROWS()', $this ); $this->found_comments = (int) $wpdb->get_var( $found_comments_query ); } }Introduced in 4.6.0. Unchanged from 6.7.7 through 7.1.0.
Signature, return type and hooks compared across 5 parsed releases.
src/wp-includes/class-wp-comment-query.php, and regenerated for each WordPress release so it tracks the code rather than a snapshot of it.