3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function foo(&$var) { $var =& $GLOBALS["baz"]; $var = 5; } foo($bar); echo 'bar-> ', $bar; echo 'baz-> ', $baz;
based on WsmlN
Output for 4.3.0 - 7.1.0
bar-> baz-> 5