3v4l.org

run code in 300+ PHP versions simultaneously
<?php $number1 = round(354.2550, 2); $number2 = round(38456.12, 2); //echo strlen(substr(strrchr($number1, "."), 1)) . "<br />"; //echo strlen(substr(strrchr($number2, "."), 1)); echo number_format($number1, strlen(substr(strrchr($number1, "."), 1)), ',', '.'); echo PHP_EOL; echo number_format($number2, strlen(substr(strrchr($number2, "."), 1)), ',', '.');

preferences:
31.05 ms | 402 KiB | 5 Q