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<?php class Param extends ArrayObject { public function offsetGet($name) { //if (!$this->offsetExists($name)) return null; return parent::offsetGet($name); } } $data = new Param(array('foo' => 12)); var_dump($data['bar'], $data['foo']);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of Param::offsetGet($name) should either be compatible with ArrayObject::offsetGet(mixed $key): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/I5dl1 on line 5 Warning: Undefined array key "bar" in /in/I5dl1 on line 9 NULL int(12)

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