3v4l.org

run code in 500+ PHP versions simultaneously
<?php declare(strict_types=1); namespace Test\Biz; error_reporting(-1); class Foo { function bar($value) { if (\is_callable($value)) { return $this->baz($value); } } function baz(callable $callable): string { return $callable; } } echo (new Foo())->bar('\Test\Biz\Foo::bar');
Output for 7.1.25 - 7.1.33, 7.2.0 - 7.2.33, 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 - 8.2.31, 8.3.0 - 8.3.31, 8.4.1 - 8.4.22, 8.5.0 - 8.5.7
\Test\Biz\Foo::bar
preferences:
105.61 ms | 1512 KiB | 4 Q