How to calculate sum of all input value in text having trailing commas?

Question

I want to calculate all input values in text which are having or not having trailing commas.
Example I input 2,3,4,5 or 2345 in text box. Its sum should come as 14, provided user has used or not used , in between numbers.

What if the user wants to input `10,12,14` but inputs it as `101214`? Your method will then sum it to 9 instead of 36 — Andreas, Feb 23 '19 at 12:49

Khaled Al-Haj Salem · Answer 1 · 2019-02-23T12:50:09.057

0

function calculateStringNumbers($string)
{
    $sum = 0;
    $numbers_array = explode(',',$string);

    if(is_array($numbers_array) && count($numbers_array) > 0 && strpos($string, ',') !== false)
    {
        $sum = array_sum($numbers_array);
    }
    else
    {
        $sum = sum($string);
    }

    echo 'Your Sum is: '.$sum.' cheers';
}


function sum($num) {
    $sum = 0;
    for ($i = 0; $i < strlen($num); $i++){
        $sum += $num[$i];
    }
    return $sum;
}

Test Cases:

1 - user input 2345: calculateStringNumbers('2345') Output Your Sum is: 14 cheers

2 - user input 2,3,4,5: calculateStringNumbers('2,3,4,5') Output Your Sum is: 14 cheers

edited Feb 23 '19 at 12:50

answered Feb 23 '19 at 12:04

Khaled Al-Haj Salem

1
1

This solution is wrong. Input 2345 comes out as 2345, not the wanted "14" – paskl Feb 23 '19 at 12:14
i tested myself bro and than i put the solution.also i haven used any inbuilt functions.if required i will send a working screenshot – Yogesh Raghav Feb 23 '19 at 12:24

score 0 · Answer 2 · answered Feb 23 '19 at 12:25

0

My more concise solution would be:

$sum = array_sum(preg_split('/[\s,]*/', $input));

answered Feb 23 '19 at 12:25

Joe

877
1
11
26

score -1 · Answer 3 · answered Feb 23 '19 at 12:00

-1

Lucking after posting my questions , i manage to find a solution by myself.. here it is:

<form method="POST" action="">
<input type="text" name="checkname"/>
<input type="submit" name="mysubmit"/>
</form>
<?php
if (isset($_POST['mysubmit']))
{
$test=$_POST['checkname'];

$search_comma=strpos($test,',');    

$testexp=explode(',',$test);

$allsum=implode('',$testexp);

$allsum=preg_replace('/\s+/', '', $allsum);

$sum=0;

for($i=0;$i<strlen($allsum);$i++)
{
 $sum=$sum+$allsum[$i];
}
 echo 'Your Sum is:'.$sum;
}

User Input 1:1,2,3,4

User Input 2:1234

=================

Output: Your Sum is:10 cheers :)

answered Feb 23 '19 at 12:00

Yogesh Raghav

1
1
5

You have no clue what those functions do, do you? – Andreas Mar 23 '19 at 13:17
iam having clue mr but just asking about the thing that u mentioned.if u dont wanna contribute than its ok no issue..thanks – Yogesh Raghav Mar 25 '19 at 05:12
There is no answer to your question since you have not covered the edge cases as I wrote in the comments to the question. – Andreas Mar 25 '19 at 06:42

How to calculate sum of all input value in text having trailing commas?

3 Answers3