wp_get_unapproved_comment_author_email(): string

2034function wp_get_unapproved_comment_author_email() {2035	$commenter_email = '';2036 2037	if ( ! empty( $_GET['unapproved'] ) && ! empty( $_GET['moderation-hash'] ) ) {2038		$comment_id = (int) $_GET['unapproved'];2039		$comment    = get_comment( $comment_id );2040 2041		if ( $comment && hash_equals( $_GET['moderation-hash'], wp_hash( $comment->comment_date_gmt ) ) ) {2042			// The comment will only be viewable by the comment author for 10 minutes.2043			$comment_preview_expires = strtotime( $comment->comment_date_gmt . '+10 minutes' );2044 2045			if ( time() < $comment_preview_expires ) {2046				$commenter_email = $comment->comment_author_email;2047			}2048		}2049	}2050 2051	if ( ! $commenter_email ) {2052		$commenter       = wp_get_current_commenter();2053		$commenter_email = $commenter['comment_author_email'];2054	}2055 2056	return $commenter_email;2057}