3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $test = [ 0 => 1, 1 => 2, 2 => 3, 3 => 4 ]; foreach ($test as $k => $v) { if ($k == 1) { unset($test[2]); unset($test[3]); } echo "$k => $v\n"; }
based on 8mXfN
Output for 5.6.0 - 5.6.30, hhvm-3.18.5 - 3.22.0, 7.1.0 - 7.3.0rc3
0 => 1 1 => 2 2 => 3 3 => 4