(PHP 4 >= 4.0.4, PHP 5, PHP 7, PHP 8)
array_sum — Calculate the sum of values in an array
array_sum(array $array): int|float
array_sum() returns the sum of values in an array.
arrayThe input array.
Returns the sum of values as an integer or float; 0 if the array is empty.
| Version | Description |
|---|---|
| 8.3.0 | Now emits E_WARNING when array values cannot be converted to int or float. Previously arrays and objects where ignored whilst every other value was cast to int. Moreover, objects that define a numeric cast (e.g. GMP) are now cast instead of ignored. |
Example #1 array_sum() examples
<?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:
sum(a) = 20 sum(b) = 6.9
© 1997–2025 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/function.array-sum.php