3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $bar; public $baz; } $a = $b = new Foo(); $a->bar = 42; $b->baz = 43; var_dump($a, $b);
Output for 5.5.0 - 5.5.35, 5.6.0 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20, 7.2.0 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.29, 8.2.0 - 8.2.21, 8.3.0 - 8.3.9
object(Foo)#1 (2) { ["bar"]=> int(42) ["baz"]=> int(43) } object(Foo)#1 (2) { ["bar"]=> int(42) ["baz"]=> int(43) }

preferences:
177.69 ms | 405 KiB | 220 Q