3v4l.org

run code in 300+ PHP versions simultaneously
<?php $num = 2.9; echo number_format($num, 2);
Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
2.90

preferences:
95.3 ms | 402 KiB | 85 Q