Online PHP editor | refs for Bu3dI

<?php $a = [1, 5, 8]; $s = 'Hello'; $o = new stdClass(); var_dump(isset($s[$o])); var_dump(empty($s[$o])); try { var_dump(isset($a[$o])); } catch (\Throwable $e) { echo $e->getMessage(), "\n"; } try { var_dump(empty($a[$o])); } catch (\Throwable $e) { echo $e->getMessage(), "\n"; }