PHP array_sum() Function Last Updated : 19 Sep, 2024 Comments Improve Suggest changes Like Article Like Report The array_sum() function in PHP is used to calculate the sum of values in an array. It works with both indexed and associative arrays and can handle arrays containing both integers and floats. If the array is empty, it returns 0.number array_sum ( $array )Syntaxnumber array_sum(array $array)Parameter$array: The array whose values you want to sum.Return Value:The function returns the sum of all elements in the array. The returned value can be an integer or a float depending on the elements.If the array is empty, it returns 0.Examples: Input : $a = array(12, 24, 36, 48); print_r(array_sum($a)); Output :120 Input : $a = array(); print_r(array_sum($a)); Output :0 In the first example the array calculates the sum of the elements of the array and returns it. In the second example the answer returned is 0 since the array is empty. Example 1: Sum of Numeric Array PHP <?php //array whose sum is to be calculated $a = array(12, 24, 36, 48); //calculating sum print_r(array_sum($a)); ?> Output: 120 Example 2: Empty Array PHP <?php //array whose sum is to be calculated $a = array(); //calculating sum print_r(array_sum($a)); ?> Output: 0 Example 3: Array with Floating Point Numbers PHP <?php // array whose sum is to be calculated $b = array("anti" => 1.42, "biotic" => 12.3, "charisma" => 73.4); // calculating sum print_r(array_sum($b)); ?> Output: 87.12 Comment More infoAdvertise with us Next Article PHP array_sum() Function A Arnav Kr. Mandal Follow Improve Article Tags : Misc Web Technologies PHP PHP-array PHP-function +1 More Practice Tags : Misc Similar Reads PHP array_chunk() Function The array_chunk() function is an inbuilt function in PHP which is used to split an array into parts or chunks of given size depending upon the parameters passed to the function. 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