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<?php class Hoge implements ArrayAccess { public function offsetExists($offset) { var_dump(__METHOD__); return true; } public function offsetGet($offset) { var_dump(__METHOD__); return "0"; } public function offsetSet($offset, $value) {} public function offsetUnset($offset) {} } $o = new Hoge(); var_dump(isset($o[123])); var_dump(empty($o[123]));
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Return type of Hoge::offsetExists($offset) should either be compatible with ArrayAccess::offsetExists(mixed $offset): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/3vmV3 on line 4 Deprecated: Return type of Hoge::offsetGet($offset) should either be compatible with ArrayAccess::offsetGet(mixed $offset): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/3vmV3 on line 10 Deprecated: Return type of Hoge::offsetSet($offset, $value) should either be compatible with ArrayAccess::offsetSet(mixed $offset, mixed $value): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/3vmV3 on line 16 Deprecated: Return type of Hoge::offsetUnset($offset) should either be compatible with ArrayAccess::offsetUnset(mixed $offset): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/3vmV3 on line 17 string(18) "Hoge::offsetExists" bool(true) string(18) "Hoge::offsetExists" string(15) "Hoge::offsetGet" bool(true)

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