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run code in 300+ PHP versions simultaneously
<?php class MyStuff extends ArrayObject { function offsetGet($offset) { echo "Called"; return parent::offsetGet($offset); } } $array = array( 'foo' => 42, 'baz' => null, ); $array_object = new MyStuff($array); // existing key, non-null value: var_dump(isset($array['foo'])); //true var_dump(empty($array['foo'])); //false var_dump(isset($array_object['foo'])); //true var_dump(empty($array_object['foo'])); //false // non-existing key: var_dump(isset($array['bar'])); //false var_dump(empty($array['bar'])); //true var_dump(isset($array_object['bar'])); //true var_dump(empty($array_object['bar'])); //false // key where value is null: var_dump(isset($array['baz'])); //false var_dump(empty($array['baz'])); //true var_dump(isset($array_object['baz'])); //true var_dump(empty($array_object['baz'])); //false
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Return type of MyStuff::offsetGet($offset) should either be compatible with ArrayObject::offsetGet(mixed $key): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/rU77c on line 4 bool(true) bool(false) bool(true) Calledbool(false) bool(false) bool(true) bool(false) bool(true) bool(false) bool(true) bool(false) Calledbool(true)
Output for 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
bool(true) bool(false) bool(true) Calledbool(false) bool(false) bool(true) bool(false) bool(true) bool(false) bool(true) bool(false) Calledbool(true)
Output for 5.3.11 - 5.3.29, 5.4.1 - 5.4.45, 5.5.0 - 5.5.37
bool(true) bool(false) bool(true) bool(false) bool(false) bool(true) bool(false) bool(true) bool(false) bool(true) bool(false) bool(true)
Output for 5.2.1 - 5.2.17, 5.3.0 - 5.3.10, 5.4.0
bool(true) bool(false) bool(true) bool(false) bool(false) bool(true) bool(false) bool(true) bool(false) bool(true) bool(true) bool(true)
Output for 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0
bool(true) bool(false) bool(true) bool(false) bool(false) bool(true) bool(false) bool(true) bool(false) bool(true) bool(true) bool(false)
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/rU77c on line 37
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Fatal error: Class mystuff: Cannot inherit from undefined class arrayobject in /in/rU77c on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Fatal error: Class mystuff: Cannot inherit from undefined class arrayobject in /in/rU77c on line 3
preferences:
234.4 ms | 401 KiB | 394 Q