3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 'a'; $foo = 'woot'; $$a = 'foo'; $$$a = 'bar'; echo $a . "\n"; echo $foo . "\n"; echo $woot . "\n";
Output for 4.3.0 - 7.1.0
foo woot bar