3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { protected $foo; public function __construct(string $foo) { $this->foo = $foo; } public function isEqualTo(self $otherFoo) { return $this->foo === $otherFoo->foo; } } $foo = new Foo('test'); $foo2 = new Foo('test'); var_dump($foo->isEqualTo($foo2)); $foo3 = new Foo('test'); $foo4 = new Foo('pest'); var_dump($foo3->isEqualTo($foo4));
Output for 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.26, 8.0.0 - 8.0.13, 8.1rc1 - rc3
bool(true) bool(false)

preferences:
41.3 ms | 460 KiB | 5 Q