3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = array(); $a['0'] = 'a'; $a['2'] = 'c'; $a['1'] = 'b'; echo join(',', $a) . "\n"; ?>
based on uMBU8
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
a,c,b
Output for hhvm-3.10.0

Process exited with code 153.