3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $c = 0.27; $a = round(28*$c+28*$c*(0.0/100),2); $b = 0.27*28; var_dump($a-($b-0.0));
based on LZrnI
Output for 4.3.0 - 7.1.10
float(-8.8817841970013E-16)