Online PHP editor | refs for r0Okl

<?php class MyStorage implements ArrayAccess { private $map; public function offsetExists($n){ return isset($this->map[$n]); } public function offsetGet($n){ return $this->map[$n]; } public function offsetSet($n, $v){ $this->map[$n] = $v; } public function offsetUnset($n){ unset($this->map[$n]); } } $s = new MyStorage(); $s['blah'] = ['a' => 1, 'b' => 2, 'c' => 3]; var_dump($s['blah']); $s['blah']['a'] = 10; var_dump($s['blah']);