Online PHP editor | refs for fkiqL

<?php class C implements ArrayAccess { public function offsetGet($k) { echo "offsetGet: "; var_dump($k); } public function offsetSet($k, $v) { echo "offsetSet: "; var_dump($k); } public function offsetExists($k) { echo "offsetExists: "; var_dump($k); } public function offsetUnset($k) { echo "offsetUnset: "; var_dump($k); } } $x = new C(); $k = '123'; var_dump($x[('123')]); var_dump($x[('123')] = 4); var_dump(isset($x[('123')])); unset($x[('123')]);