diff --git a/mysqli/mysqli.php b/mysqli/mysqli.php
index c37518a6..0d858b54 100644
--- a/mysqli/mysqli.php
+++ b/mysqli/mysqli.php
@@ -337,14 +337,14 @@ class mysqli  {
 	public function multi_query ($query) {}
 
 	/**
-	 * @param $host [optional]
-	 * @param $user [optional]
-	 * @param $password [optional]
-	 * @param $database [optional]
-	 * @param $port [optional]
-	 * @param $socket [optional]
+	 * @param string $host [optional]
+	 * @param string $user [optional]
+	 * @param string $password [optional]
+	 * @param string $database [optional]
+	 * @param int $port [optional]
+	 * @param string $socket [optional]
 	 */
-	public function mysqli ($host, $user, $password, $database, $port, $socket) {}
+	public function mysqli ($host = null, $user = null, $password = null, $database = null, $port = null, $socket = null) {}
 
 	/**
 	 * Check if there are any more query results from a multi query