3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $foo = 'cat'; $bar = & $foo; // $bar is now 'cat' $foo = 'dog'; // $bar is now 'dog' var_dump($bar);
based on VYa1n
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.3.0beta1
string(3) "dog"