3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php $n = "sdf"; var_dump(empty($n) ? "" : number_format($n, 3));
Output for 7.0.0 - 7.1.0
Warning: number_format() expects parameter 1 to be float, string given in /in/UfHOa on line 3 NULL
Output for 5.3.0 - 5.6.28
Warning: number_format() expects parameter 1 to be double, string given in /in/UfHOa on line 3 NULL
Output for 4.3.0 - 5.2.17
string(5) "0.000"