3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Father { private $foo; } class Child extends Father { public $foo; } var_dump(new Child);
Output for 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
object(Child)#1 (2) { ["foo":"Father":private]=> NULL ["foo"]=> NULL }
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
object(Child)#1 (2) { ["foo"]=> NULL ["foo":"Father":private]=> NULL }

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