3v4l.org

run code in 300+ PHP versions simultaneously
<?php class MyStuff extends ArrayObject { function offsetGet($offset) { echo "Called"; return null; } } $array = ['foo' => 42]; $array_object = new MyStuff(); var_dump(isset($array['foo'])); var_dump(empty($array['foo'])); var_dump(isset($array_object['foo'])); var_dump(empty($array_object['foo']));
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Deprecated: Return type of MyStuff::offsetGet($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/YPPgl on line 5 bool(true) bool(false) bool(false) bool(true)
Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 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(false) bool(true)
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/YPPgl on line 12
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/YPPgl on line 12
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/YPPgl on line 12
Process exited with code 255.

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