* Determine if a comment exists based on author and date.
*
* @since 2.0.0
- * @uses $wpdb
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @param string $comment_author Author of the comment
* @param string $comment_date Date of the comment
* Get the number of pending comments on a post or posts
*
* @since 2.3.0
- * @uses $wpdb
+ *
+ * @global wpdb $wpdb WordPress database abstraction object.
*
* @param int|array $post_id Either a single Post ID or an array of Post IDs
* @return int|array Either a single Posts pending comments as an int or an array of ints keyed on the Post IDs