3v4l.org

run code in 300+ PHP versions simultaneously
<?php class Foo { public static function bar() { echo "hello"; } } $cb = 'Foo::bar'; $cb();
Output for 7.0.0 - 7.0.20, 7.1.0 - 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 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
hello
Output for 5.4.2 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28
Fatal error: Call to undefined function Foo::bar() in /in/ecrub on line 12
Process exited with code 255.
preferences:
180.77 ms | 402 KiB | 273 Q