3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(); $a[] = ''; $a[] = 'test'; var_dump($a);
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
array(2) { [0]=> string(0) "" [1]=> string(4) "test" }
Output for hhvm-3.10.0

Process exited with code 153.