3v4l.org

run code in 300+ PHP versions simultaneously
<?php $func = function($a, $b){ echo implode(' ', func_get_args()); }; $reflection = new ReflectionFunction($func); var_dump($reflection);
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.25, 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
object(ReflectionFunction)#2 (1) { ["name"]=> string(9) "{closure}" }

preferences:
130.67 ms | 404 KiB | 189 Q