3v4l.org

run code in 300+ PHP versions simultaneously
<?php $fp = fsockopen("www.mydomain.net", 80, $errno, $errstr, 30); fputs($fp, "GET /1/file.php HTTP/1.1\n"); fputs($fp, "Host: www.mydomain.net\n"); fputs($fp, "Connection: close\n\n");

preferences:
21.49 ms | 402 KiB | 5 Q