3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $b = 0.0001; $a = round($b,2); var_dump($b);var_dump($a-$b);
based on Q7NcI
Output for 4.3.0 - 5.6.28, hhvm-3.12.0, 7.0.0 - 7.1.0
float(0.0001) float(-0.0001)
Output for hhvm-3.10.0

Process exited with code 153.