3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { const A = null; const B = 1; public static function get() { return self::A ?? self::B; } } var_dump(Foo::get());
Output for 7.2.0 - 7.2.34, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 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
int(1)
preferences:
89.55 ms | 1476 KiB | 4 Q