3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public static function exec() { echo "OK"; } } $c = 'Foo::exec'; if (is_callable($c)) { $c(); }
Output for 7.0.0 - 7.0.31, 7.1.0 - 7.1.25, 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 - 8.1.30, 8.2.0 - 8.2.24, 8.3.0 - 8.3.12
OK
preferences:
80.3 ms | 407 KiB | 5 Q