3v4l.org

run code in 300+ PHP versions simultaneously
<?php $foo = new class {}; $foo->destructListener = new class { public function __destruct() {echo "bye";} }; unset($foo);
Output for 8.2.0 - 8.2.29, 8.3.0 - 8.3.26, 8.4.1 - 8.4.13
Deprecated: Creation of dynamic property class@anonymous::$destructListener is deprecated in /in/0d8kP on line 5 bye
Output for 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, 8.1.0 - 8.1.33
bye
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28
Parse error: syntax error, unexpected 'class' (T_CLASS) in /in/0d8kP on line 3
Process exited with code 255.
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102.48 ms | 408 KiB | 5 Q