3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a['1'] = "Hello "; $a['2'] = "World"; echo $a['1'] . $a['2']; ?>
based on 69Zbf
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Hello World
Output for hhvm-3.10.0

Process exited with code 153.