3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public $x; } class Bar { public $y; } $a = new Foo(); $b = new Foo(); $a->x = new Bar(); $a->x->y = 3; $b->x = new Bar(); $b->x->y = 2; print_r($a != $b); ?>

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37.57 ms | 402 KiB | 5 Q