Comments on: Simplest way to remove trailing zeros of decimal numbers

By: max4ever

max4ever — Thu, 02 Feb 2012 14:58:17 +0000

echo (float) “0.123000″; // ==> 0.123

By: web-developer

web-developer — Mon, 03 Oct 2011 09:19:46 +0000

You should use this function, it works good with decimal (including 0.01 and 0.000) and integer (including 80):

function clean_num( $num ){
	$pos = strpos($num, '.');
	if($pos === false) { // it is integer number
		return $num;
	}else{ // it is decimal number
		return rtrim(rtrim($num, '0'), '.');
	}
}

By: bob

bob — Mon, 12 Sep 2011 22:22:40 +0000

Sumesh – you are correct – but that wasn’t the purpose of the function. It is to be used on database fields that are of type decimal. This function works perfectly.

By: Sumesh

Sumesh — Tue, 31 May 2011 10:04:33 +0000

Please dont use this function it trims useful zeros. For eg. try clean_num(80). It will print 8!!!

By: Sergiu

Sergiu — Tue, 12 Apr 2011 13:50:38 +0000

I tried what you all said, but it didn’t work…

here is what worked
function clean_num($number) {
return trim(strrev(ltrim(strrev($number), 0)),”.”);
}

By: Sasa

Sasa — Fri, 18 Mar 2011 16:20:38 +0000

I don’t know php very well, so I don’t understand how decimal number can have leading or trailing zeros. In that case, that is not decimal number. Suppose that $num is string, try this code

function clean_num($num){
return (string)(floatval($num));
}

By: Charlie

Charlie — Tue, 14 Dec 2010 21:21:34 +0000

This will also not work if the number is 0.00

In this case the function returns and empty string.

Therefore you should use this function:

function clean_num($num){
if ($num==0) {return 0;}
return rtrim(rtrim($num, ’0′), ‘.’); }

Also it will only strip trailing zeros, if you also want to strip leading zeros, use trim in place of rtrim.

By: personal software

personal software — Wed, 11 Aug 2010 11:34:33 +0000

One again, your articles is very good.thank you!very much.

By: shankar nagvekar

shankar nagvekar — Thu, 05 Aug 2010 10:27:29 +0000

Hi,
it will fail if the $num =0.01;
$var = trim(strrev(ltrim(strrev($number), ’0′)),’.');
try out this one

function clean_num($num){
return trim(strrev(ltrim(strrev($number), ’0′)),’.');
}