how to do a sum on a string in php?

Question

i have a simple question:

i have this var: $v = "24000,1500,1500,1500,1500,1500,";

i would like to add those numbers together.

i've tried to str_replace the , with + and so a eval(), but that didn't worked.

i also tried str_split() but it doesn't know to split on the ,.

maybe if somehow convert it to an array and do a array_sum...

any ideas?

thanks

[Without delimiting characters](https://stackoverflow.com/questions/3232511/get-the-sum-of-all-digits-in-a-numeric-string) — mickmackusa, Jul 11 '22 at 22:03

Decent Dabbler · Accepted Answer · 2012-06-13T23:56:35.037

18

$sum = array_sum( explode( ',', $v ) );

What this does is split $v by the delimiter , with explode() and sum the resulting array of parts with array_sum().

edited Jun 13 '12 at 23:56

answered Jun 13 '12 at 23:50

Decent Dabbler

22,532
8
74
106

thanks. it works just fine. and someone you would think to try that, but i just went to the complicated stuff. :) – Patrioticcow Jun 13 '12 at 23:53
hi i want to sum up this value how can I do? $dt = '100+100+200+500'; echo $dt i want to get 900 as result – M Amir Shahzad Sep 02 '21 at 10:16

score 4 · Answer 2 · answered Jun 13 '12 at 23:53

4

$v = "24000,1500,1500,1500,1500,1500,";
$result = 0;
foreach(explode(',',$v) as $val)
     $result +=intval($val);

echo $result;///31500

answered Jun 13 '12 at 23:53

richie-torres

746
1
8
29

Nabeel · Answer 3 · 2017-02-17T20:41:54.440

1

Use str_getcsv to obtain an array of the values. Then loop through the array to sum those values.

edited Feb 17 '17 at 20:41

answered Jun 13 '12 at 23:50

Nabeel

557
4
15

score 1 · Answer 4 · answered Jun 14 '12 at 04:06

The explode function works best in your situation. What explode does is that it splits the string based on the parameter that you specify it. You can think of it as slicing the string based on the parameter and putting it in an array.

Once done, you have a bunch of numbers in the array. Just do a sum. If you want to ensure that all are numbers, you can use is_numeric() to ensure. (:

score -1 · Answer 5 · edited Sep 20 '18 at 14:35

-1

function get_sum()
{
    global $v;
    $temp=0;
    for($i=0;$i<strlen($v);$i++)
    {
        $temp+=intval($v[$i]);
    }
    echo $temp;
}

echo get_sum();

edited Sep 20 '18 at 14:35

Shiro

7,344
8
46
80

answered Sep 20 '18 at 13:41

Anky Tanwar

1
1

Can I suggest explaining the working parts of this answer so the person asking the question understands how it works/what it is. And how to use it. – Danny Staple Sep 20 '18 at 14:46

how to do a sum on a string in php?

5 Answers5

Linked

Related