3v4l.org

run code in 300+ PHP versions simultaneously
<?php $postData =http_build_query(array( 'key' => 'cass' ));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
preferences:
74.41 ms | 402 KiB | 62 Q