adding values of php array together in multidemsional array

Question

I have a array in php that is like this

     Array
       (
           [0] => Array
               (
                   [user] => 1
               )           
       )
       Array
       (
           [0] => Array
               (
                   [vote] => 3.0
               )

           [1] => Array
               (
                   [vote] => 5.0
               )           
       )

I need to add together the values of vote ( 3.0 + 5.0 = 8) in the array

what is the best way to do this in php

Do you want to add only values of the array having "vote" as a key? — barudo
– barudo, Commented Oct 31, 2016 at 1:15

Wardhana · Accepted Answer · 2016-10-31 01:14:22Z

1

Maybe you can use this:

$sum = $the_second_array[0];
for($i=1; $i<count($the_second_array); $i++){
  $sum += $the_second_array[$i];
}

Add first index value into temporary, then looping from second index of array for sum the next value.

answered Oct 31, 2016 at 1:14

Wardhana

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Comments

Manh Nguyen · Accepted Answer · 2016-10-31 01:24:03Z

1

To add the values of vote you can do as follows:

array_sum(array_column($array[1], 'vote'));

answered Oct 31, 2016 at 1:24

Manh Nguyen

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Comments

barudo · Accepted Answer · 2016-10-31 01:34:13Z

0

Try this one:

//assuming $array is your array...
$score = 0;
foreach($array[1] as $element)
{
    foreach($element as $key=>$val)
    {
        if('vote'==$key)
        {
             $score+=$val;
        }
    }
}

edited Oct 31, 2016 at 1:34

answered Oct 31, 2016 at 1:22

barudo

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Comments

LF-DevJourney · Accepted Answer · 2016-10-31 01:36:35Z

0

demo here:

<?php $arrays = array(array(array('user' => 1)), array(array('vote' => 3.0), array( 'vote' => 5.0)));
var_dump(array_map(function($array){return array_sum(array_map(function($value){return $value['vote'] ? $value['vote'] : 0;}, $array));}, $arrays));

answered Oct 31, 2016 at 1:36

LF-DevJourney

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