3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php number_format(null,3,'.','');
Output for 4.3.0 - 5.6.30, hhvm-3.10.1, 7.0.0 - 7.2.0
Output for hhvm-3.11.1 - 3.17.3
Warning: number_format() expects parameter 1 to be double, null given in /in/7GnY7 on line 2