3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $n=2; while($n<=20) { if($n%2==0) { echo $n."<br>"; } $n=$n+1; }
based on rDAhL
Output for 4.3.0 - 7.1.0
2<br>4<br>6<br>8<br>10<br>12<br>14<br>16<br>18<br>20<br>