3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php for ($f = 0; $f < 10; $f++) { echo $f; if($f == 4) $f = 8; } echo "\n\n"; $f = array(1,2,3,4,5,6,7,8,9,10); foreach($f as $k => $v) { echo $k; if($k == 4) $k = 8; }
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
012349 0123456789