Online PHP editor | refs for 2Mc7u

<?php class Foo { public function isCallable($bar) { return is_callable($bar); } } $foo = new Foo; $a = function() {}; class Bar { public function __invoke() {} public function log(){} } $b = new Bar; $c = [$b, 'log']; var_dump($foo->isCallable($a)); var_dump($foo->isCallable($b)); var_dump($foo->isCallable($c));