3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php echo number_format("20,400", 2);
Output for 5.3.0 - 7.1.0
Notice: A non well formed numeric value encountered in /in/Blog7 on line 3 20.00
Output for 4.3.0 - 5.2.17
20.00