如何在PHP中将数字从621编译到700？

Question

$num=621;
echo round(round(621,-2));

Answer 1

I think you are trying to round off a number to the nearest 100. Simply do this by using the ceil function.

ceil(621 / 100) * 100;

You can use ceil function to round any number to its nearest number.

$number = ceil($inputNumber / $nearestNumber) * $nearestNumber;