3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { private int $num; public function __construct(int $num) { $this->num = $num; } } var_dump(new Foo(1) == new Foo(2));
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.18, 8.5.0 - 8.5.3
bool(false)

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52.76 ms | 977 KiB | 4 Q