Online PHP editor | refs for FsWED

<?php class C{ public $foo=5; public function foo(){echo "foo is evidently a callable function!";} } $o=new C(); if(is_int([$o, 'foo'])){ echo "foo is an integer!\n"; } if(is_callable([$o, 'foo'])){ echo "foo IS callable!\n"; }else{ echo "foo IS NOT callable!\n"; } [$o, 'foo']();