3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $x=array(1,2,3);foreach($x as $y)foreach($x as $z)echo "$y,$z\n"; ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
1,1 1,2 1,3 2,1 2,2 2,3 3,1 3,2 3,3