3v4l.org

run code in 300+ PHP versions simultaneously
<?php $GLOBALS = 'miauw'; $_SERVER = array(1, 2, 4, 6, 7, 8, 9, 112); function miauw() { var_dump($_SERVER, $GLOBALS, $GLOBALS['_SERVER']); } miauw();

preferences:
34.44 ms | 402 KiB | 5 Q