3v4l.org

run code in 300+ PHP versions simultaneously
<?php abstract class Foo { private static $instance = NULL; private function __construct() { } public static function getInstance() { return static::$instance === NULL ? static::$instance = new static() : static::$instance; } } final class Bar extends Foo { } final class Baz extends Foo { } $bar = Bar::getInstance(); echo get_class($bar), "\n"; $baz = Baz::getInstance(); echo get_class($baz), "\n";
Output for git.master, git.master_jit, rfc.property-hooks
Bar Bar

This tab shows result from various feature-branches currently under review by the php developers. Contact me to have additional branches featured.

Active branches

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page

preferences:
34.58 ms | 401 KiB | 8 Q