3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo "123"; $i=0; $dynamic3var = 0; while($i < 10){ $label = "dynamic".$i."var"; if(isset(${"dynamic" . $i . "var"})) echo ${"dynamic" . $i . "var"}; $i ++; }; ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.13.2, 7.0.0 - 7.1.0
1230