3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $tt[] = "aa"; $tt[] = "aa"; $tt[] = "aa"; $tt[] = "bb"; $tt[] = "bb"; $tt[] = "bb"; $tt[] = "bb"; array_unique($tt);
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.0.0 - 7.3.0beta1