3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $b = 0.27000000001; $a = round($b,2); var_dump($b);var_dump($a-$b);
based on qLWj3
Output for 4.3.0 - 7.2.0
float(0.27000000001) float(-1.0000000827404E-11)