3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $b = 0.27*28; $a = round($b,2); var_dump($a-$b);
based on kd30F
Output for 4.3.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
float(-8.8817841970013E-16)