3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $b = 0; while($b< 3) { $b = array(); $b['loop'] = $b; $b++; } print_r($b['loop']); ?>
based on XdWP2
Output for 4.3.0 - 5.0.5, 5.2.6 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
Array ( )
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.1.0 - 5.2.5
Array ( [loop] => Array *RECURSION* )