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array_sum

PHP function Edit on GitHub ✎

(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)

Calculate the sum of values in an array

Description

array_sum(array $array): int|float

array_sum() returns the sum of values in an array.

Parameters

array

The input array.

Return Values

Returns the sum of values as an integer or float; 0 if the array is empty.

Changelog

VersionDescription
8.3.0Now emits E_WARNING when array values cannot be converted to Integer or Float. Previously Arrays and Objects where ignored whilst every other value was cast to Integer. Moreover, objects that define a numeric cast (e.g. GMP) are now cast instead of ignored.

Examples

array_sum() examples

php
<?php
$a = array(2, 4, 6, 8);
echo "sum(a) = " . array_sum($a) . "\n";

$b = array("a" => 1.2, "b" => 2.3, "c" => 3.4);
echo "sum(b) = " . array_sum($b) . "\n";
?>

The above example will output:

output
sum(a) = 20
sum(b) = 6.9

Source: reference/array/functions/array-sum.xml · from the official PHP manual (php/doc-en)