Round to max thousand, hundred etc in PHP

Question

I have a pretty simple PHP question but I'm not sure how to do that.

I want to round to the max hundred or thousand depending on the value returned by the database.

Here are a few examples of what I need :

DB returns the value 11, I want PHP to output 20
DB returns the value 104, I want PHP to output 200
DB returns the value 1404, I want PHP to output 2000
DB returns the value 10241, I want PHP to output 11000

etc etc

I would like to create an automatic function to do that, according to the value passed.

Thanks!

please take a look at the accepted answer, maybe it is a solution for you: http://stackoverflow.com/questions/5150001/how-to-round-to-nearest-thousand — T Schi, May 12 '17 at 08:12
DB returns the value 10241, I want PHP to output 11000 should not that be 20000? — Leszek P, May 12 '17 at 08:17

score 6 · Accepted Answer · edited May 23 '17 at 12:34

6

Final implementation, inspired from Shaunkak's answer and SO's comment. Thanks for these bra..s. live demo

<?php
  $val = 10241.67;
  if($val >= 1000) {
    echo ceil($val / 1000) * 1000;
  }
  else {
    $length = strlen(ceil($val));
    $times = str_pad('1', $length, "0");
    echo ceil($val / $times) * $times;
}

edited May 23 '17 at 12:34

Community

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answered May 12 '17 at 08:11

LF00

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Have you tested it? ceil(11 / 1000.0) * 1000 => 1000, not 20. – Leszek P May 12 '17 at 08:13
I means if you want 10 folder, divide 10.0 then multiply 10. – LF00 May 12 '17 at 08:16
@LeszekRepie you can check it now – LF00 May 12 '17 at 08:37
1

Nice, it works, thanks! However, I improved it by replacing `strlen($val);` by `strlen(ceil($val));` so it also works with decimal numbers. – fraxool May 12 '17 at 08:44
@fraxool, you also can combine with Shaunak Shukla's answer http://stackoverflow.com/a/43933181/6521116 str_pad. – LF00 May 12 '17 at 08:47
1

This doesn't work with: 10241; OP wants to round to the max hundred or thousand. – hatef May 12 '17 at 08:53
1

Upvoted to give me the idea for next level answer. But our answer doesn't match with 10242 => 11000! It shows 20000!!! – Shaunak Shukla May 12 '17 at 08:54
Oh, I missed it, is your biggest up offset is 1000. – LF00 May 12 '17 at 08:56

Hamish · Answer 2 · 2022-04-06T11:29:22.353

5

Really not impressed by everyone using string operations!

$zeros = floor(log($value) * log10(M_E));
$zeros = min($zeros, 3); // Only round to tens, hundreds or thousands
$tens = pow(10, $zeros);
$result = ceil($value / $tens) * $tens;

https://www.tehplayground.com/kipIy3CPymY1TZsf

edited Apr 06 '22 at 11:29

answered May 14 '18 at 12:37

Hamish

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score 2 · Answer 3 · answered May 12 '17 at 08:41

2

<?php
$value = 14;
$len = strlen($value);
$div = str_pad('1', $len, "0");
echo ceil($value / $div) * $div;
?>

answered May 12 '17 at 08:41

Shaunak Shukla

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Thanks! Actually, I got the idea to put it on your previous answer. – Shaunak Shukla May 12 '17 at 08:51

score 1 · Answer 4 · answered May 12 '17 at 08:34

Try this one

<?php
    $input = 10241; //this will be your input
    $charLength = strlen($input);
    $number = [1,10,100,1000,10000,100000];
    $output = ceil($input / $number[$charLength - 1]) * $number[$charLength - 1]; //same like this ceil($input / 10) * 10;
?>

score 1 · Answer 5 · answered May 12 '17 at 08:49

1

Here is my 2 cents:

$v = 11;

if(strlen($v)<4) { 
    $v = str_pad((int)(substr($v, 0, 1)+1), strlen($v), 0, STR_PAD_RIGHT);
} else {
    $v = substr($v, 0, -4) . str_pad((int)(substr($v, -4, -3)+1), 4, 0, STR_PAD_RIGHT);
}

answered May 12 '17 at 08:49

hatef

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Round to max thousand, hundred etc in PHP

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