3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = 8.9; var_export(round($a, 2));
based on GT8ql
Output for hhvm-3.15.4, 7.1.0 - 7.3.0alpha1
8.9
Output for 5.6.0 - 5.6.30, 7.0.0 - 7.0.20
8.9000000000000004