3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function a($str1,$str2){ $d = $str1*4 + $str2*1; return $d; } for($count1 = 0; $count1 < 4; $count1++){ for($count2 = 0; $count2 < 4; $count2++){ $array[$count1][$count2] = a($count1,$count2); echo $array[$count1][$count2]." "; } } ?>
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15