获得相同比例的下一个舍入数

Question

For instance I have the number float(450250000), (~450 Million) I would need this number int(500000000) (500 Million).

Is there something PHP can do to determine this number no matter what is the scale of the number?

Answer 1

As Yash Mehta suggested you can do this:

function count_digit($number) {
    return strlen((string) $number);
}

$number = 256789;
$number_of_digits = count_digit($number);
echo round($number, - ($number_of_digits - 1));

this will output 30000.

round is php function. You can find its documentation here.