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run code in 300+ PHP versions simultaneously
<?php class MyClass { public function xAction(){ return true; } } $closure = function(){ return true; }; $controller = $closure; var_dump(new ReflectionFunction($controller));
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.2.18, 8.3.0 - 8.3.6
object(ReflectionFunction)#2 (1) { ["name"]=> string(9) "{closure}" }

preferences:
212.13 ms | 404 KiB | 376 Q