3v4l.org

run code in 300+ PHP versions simultaneously
<?php class foo { function returnArray(){ return [0,1]; } function returnThis(){ return $this; } } $obj = new foo(); var_dump(isset($obj->returnArray()[1])); var_dump(isset($obj->returnThis()->returnArray()[1]));

preferences:
45.66 ms | 402 KiB | 5 Q