First of all, let’s see the obfuscated PHP script: Original Code From:www.securityoverride.org ‘s  Challenge   <?php session_start(); $title = ‘LEVENSHTEIN'; $_SERVER = $_SERVER;$_SERVER2 = $_SERVER;$_SER[ 更多… ]

I got a funny challenge from securityoverride.org’s Advanced Level 1. The challenge is a section of PHP Script. Following is the script:    <?php                 $input = trim(getUserInput());                 if(    [ 更多… ]