3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x = array(); $x[]=1; echo $x; echo '\n'; echo $x[0]; ?>
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
Notice: Array to string conversion in /in/4Gudc on line 4 Array\n1
Output for 4.3.0 - 5.3.29
Array\n1