The array_sum Function

The array_sum function calculates the sum of array elements.

Syntax

array_sum(array $array): int|float

Example

Let's find the sum of array elements:

<?php
	$arr = [1, 2, 3, 4, 5];
	echo array_sum($arr);
?>

Code execution result:

15

Example . Application

Let's find the sum of digits of a number. To do this, split the number into an array using str_split and add the elements of this array using array_sum:

<?php
	$num = 12345;
	echo array_sum(str_split($num, 1));
?>