3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a=array('uno'=>1, 'dos'=>2); echo $a['tres'];
Output for 5.3.0 - 7.2.0
Notice: Undefined index: tres in /in/2rk8e on line 4
Output for 4.3.0 - 5.2.17
Notice: Undefined index: tres in /in/2rk8e on line 4