3v4l.org

run code in 500+ PHP versions simultaneously
<?php class Foo { public function foo() {} } $foo = new Foo; var_dump(is_callable([$foo, 'foo'])); var_dump(is_callable([$foo, 'faa']));
Output for 8.1.0 - 8.1.34, 8.2.0 - 8.2.30, 8.3.0 - 8.3.30, 8.4.1 - 8.4.21, 8.5.0 - 8.5.6
bool(true) bool(false)

preferences:
69.16 ms | 985 KiB | 4 Q