3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php $a = "10 kB"; $b = "10 kB"; $c = $a-$b; echo $c; ?>
Output for 7.1.0 - 7.2.8
Notice: A non well formed numeric value encountered in /in/nUq7K on line 4 Notice: A non well formed numeric value encountered in /in/nUq7K on line 4 0
Output for 5.6.0 - 5.6.30, hhvm-3.15.4, 7.0.0 - 7.0.20
0