<?php
$number1 = 354.2550;
$number2 = 38456.12;
//echo strlen(substr(strrchr($number1, "."), 1)) . "<br />";
//echo strlen(substr(strrchr($number2, "."), 1));
echo number_format(round($number1, 2), strlen(substr(strrchr($number1, "."), 1)), ',', '.');
echo PHP_EOL;
echo number_format(round($number2, 2), strlen(substr(strrchr($number2, "."), 1)), ',', '.');
preferences:
64.56 ms | 402 KiB | 5 Q