3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = "A-MTP-"; $i = 1; $j=1; $s=1; while ($i < 4) { $ch="ch".$s ; echo $ch; while($j < 13) { $j++; } $i++; }
Output for 4.3.0 - 7.2.0
ch1ch1ch1