3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $baz = 5; function foo(&$var) { $var =& $GLOBALS["baz"]; } foo($bar); echo 'bar-> ', $bar; echo 'baz-> ', $baz;
based on OLriJ
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
bar-> baz-> 5