How to add up a php array that has another array in it?

Question

How would i get the sum of the totals for the following PHP Array?

I am running this: print_r($myArray);

Array
(
    [0] => Array
        (
            [total] => 100.0000
        )

    [1] => Array
        (
            [total] => 100.0000
        )

    [2] => Array
        (
            [total] => 689.5000
        )
)

Have you tried looping over the list, then summing the entries up by using a variable? — mario
– mario, Commented Oct 19, 2012 at 1:20
possible duplicate of How to sum up values inside a variable? — mario
– mario, Commented Oct 19, 2012 at 1:22

Baba · Accepted Answer · 2012-10-19 01:24:03Z

3

You can use array_reduce

$total = array_reduce($array, function($a,$b) {return $a + $b['total'];});
var_dump($total);

You can use array_map

$total = 0;
array_map(function($v) use(&$total) { $total += $v['total'];},$array);
var_dump($total);

Your Just loop

for($i = 0, $total = 0; $i < count($array); $i ++) {
    $total += $array[$i]['total'];
}
var_dump($total);

Output

float 889.5

answered Oct 19, 2012 at 1:24

Baba

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1 Comment

Alby Barber Over a year ago

Thanks that is great! I also had to use floatval($total) to convert it from string to float.

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