3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php for($i=1;$i<=5;$i++) { for($j=1;$j<=$i;$j++) { echo $j; } echo "<br>"; }
Output for 4.3.0 - 7.2.0
1<br>12<br>123<br>1234<br>12345<br>