Online PHP editor | refs for ARuTT

<?php function retVal() { global $foo; return $foo; } function & retRef() { global $foo; return $foo; } unset($foo, $bar); $foo = 'init'; $bar = retVal(); $bar = 'bar'; var_dump($foo, $bar); unset($foo, $bar); $foo = 'init'; $bar = retRef(); $bar = 'bar'; var_dump($foo, $bar); unset($foo, $bar); $foo = 'init'; $bar = & retVal(); $bar = 'bar'; var_dump($foo, $bar); unset($foo, $bar); $foo = 'init'; $bar = & retRef(); $bar = 'bar'; var_dump($foo, $bar);