3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $x = array(); $x[]=1; echo $x; echo $x[0]; ?>
Output for 5.4.0 - 7.1.7
Notice: Array to string conversion in /in/uJD8O on line 4 Array1
Output for 4.3.0 - 5.3.29
Array1