3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = round(0.27*28,2); $b = 0.27*28; var_dump($a-($b-0.0));
based on v3ViZ
Output for 4.3.0 - 7.2.0
float(-8.8817841970013E-16)