3v4l.org

run code in 300+ PHP versions simultaneously
<?php session_start(); $_SESSION['test'] = true; $var = array_merge(array(), $_SESSION); session_unset(); print_r($var);
Output for 5.6.0 - 5.6.26, 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 ( [test] => 1 )

preferences:
136.13 ms | 404 KiB | 231 Q