3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { protected $x; public function __construct($x) { $this->x = $x; } } $foo = new A(1); $bar = new A(2); $baz = new A(1); var_dump($foo == $bar); var_dump($foo == $baz);

preferences:
61.86 ms | 402 KiB | 5 Q