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<?php error_reporting(E_ALL); class RefArray implements ArrayAccess { public $array; public function &offsetGet($key) { return $this->array[$key]; } public function offsetSet($key, $value) { $this->array[$key] = $value; } public function offsetExists($key) { return isset($this->array[$key]); } public function offsetUnset($key) { unset($this->array[$key]); } } $arr = new RefArray; $arr[0] = 'abc'; $arr[1] =& $arr[0];

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