Online PHP editor | refs for i79WC

<?php function & retRef() { global $foo; return $foo; } // don't assign by reference doesn't result in a reference $foo = 'init'; $bar = retRef(); $bar = 'bar'; var_dump($foo, $bar); // reset variables unset($foo, $bar); // requires to assign the function call by reference $foo = 'init'; $bar = & retRef(); $bar = 'bar'; var_dump($foo, $bar);