diff --git a/languages/php.php b/languages/php.php
index a080fe0..61e7e00 100644
--- a/languages/php.php
+++ b/languages/php.php
@@ -1,7 +1,12 @@
 <?php
 
+/**
+ * 
+ */
+
 /**
  * Global variable
+ * http://php.net/manual/en/language.variables.superglobals.php
  */
 $_SERVER; // SERVER variables
 $_GET; // Query params