3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $a = 0; $b = 0; for($i = 1; $i <= 100; $i++) { $a += pow($i, 2); $b += $i; } $c = pow($b, 2) - $a; echo "A: {$a}\nB: {$b}\nC: {$c}";
based on RsqPY
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
A: 338350 B: 5050 C: 25164150