3v4l.org

run code in 300+ PHP versions simultaneously
<?php try{@eval('!');}catch(Error $e){} $_REQUEST['xyz'] = 'pdq'; try{eval('$_REQUEST;');}catch(Error $e){} var_dump($_REQUEST);
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
array(1) { ["xyz"]=> string(3) "pdq" }
preferences:
203.31 ms | 404 KiB | 270 Q