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<?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']);
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of MyStorage::offsetExists($n) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/r0Okl on line 5 Deprecated: Return type of MyStorage::offsetGet($n) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/r0Okl on line 6 Deprecated: Return type of MyStorage::offsetSet($n, $v) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/r0Okl on line 7 Deprecated: Return type of MyStorage::offsetUnset($n) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/r0Okl on line 8 array(3) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) } Notice: Indirect modification of overloaded element of MyStorage has no effect in /in/r0Okl on line 15 array(3) { ["a"]=> int(1) ["b"]=> int(2) ["c"]=> int(3) }

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