Number abreviation and rounding

[Chris_Evans]

Hi there,
Let's say I have $number assigned to be a value of:

323292

I would like to shorten this number, no matter how long it is to the first 3 digits, and then round it always upwards to the nearest hundred. I'm rather stuck on the first part and on the second it looks as if I'll need to use round(); but not sure how I get it to always round up not down.

Thanks in advance,

Chris

[laserlight]

There are a number of solutions.
Do you need to work with negative integers as well?

function specialFormat($num) {
	//assume non-negative integers
	if ($num <= 0) {
		return 0;
	}
	elseif ($num < 100) {
		return 100;
	}
	else {
		$temp = substr((string)$num, 0, 3);
		$num = (int)$temp;
		$num /= 100;
		return ceil($num) * 100;
	}
}

It might also be possible to use:

return ceil(substr($num, 0, 3) / 100) * 100;

In the last else block, or at least

return ceil((int)substr((string)$num, 0, 3) / 100) * 100;

[Chris_Evans]

Hi there,
That's brilliant! Thank you very much for your help.

🙂 Chris