3v4l.org

run code in 300+ PHP versions simultaneously
<?php $num = 2.9; echo number_format($num, 2);
Output for 8.0.1 - 8.0.28, 8.1.0 - 8.1.19, 8.2.0 - 8.2.6
2.90
preferences:
20.07 ms | 405 KiB | 5 Q