3v4l.org

run code in 500+ PHP versions simultaneously
<?php #[Attribute] readonly class Foo { public function __construct(public Closure $callable) {} } // Allowed #[Foo(static function () {})] class Example {} // Not allowed #[Foo(static fn () => null)] class Example2 {}

Here you find the average performance (time & memory) of each version. A grayed out version indicates it didn't complete successfully (based on exit-code).

VersionSystem time (s)User time (s)Memory (MiB)
8.5.20.0140.00617.38
8.4.170.0220.01220.19
8.3.50.0080.01116.79
preferences:
43.15 ms | 497 KiB | 4 Q