# How to Calculate the sum of values in an Array in PHP

You can use the PHP **array_sum()** function **calculate the sum of values in an array**. The **array_sum()** function returns the sum of all the numeric values in an array.

Read Also: How to Remove Last Element From An Array In PHP

## PHP array_sum() Function Syntax

array_sum(array)

First let’s see the $stack array output :

<?php $stack = array("10", "12", "21", "72", "12"); print_r($stack); ?>

**Output:**

Array ( [0] => 10 [1] => 12 [2] => 21 [3] => 72 [4] => 12 )

$stack array have 5 elements and we want to sum of all element values.

## Calculate the sum of values in an array

Now we will use PHP **array_sum()** function to calculate the sum of values in an array like in below example.

<?php $stack = array("10", "12", "21", "72", "12"); // calculate the sum of values in an array $sum = array_sum($stack); echo ($sum); ?>

**Output:**

127