3v4l.org

run code in 300+ 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
preferences:
146.45 ms | 1011 KiB | 7 Q