Tác dụng của hàm array_sum()
The array_sum() function calculates the sum of all the values in an array.
The following table summarizes the technical details of this function.
| Return Value: | Returns the sum of all the values in an array as an integer or float; 0 if the array is empty. |
|---|---|
| Version: | PHP 4.0.4+ |
Syntax
The basic syntax of the array_sum() function is given with:
array_sum(array);
The following example shows the array_sum() function in action.
Example
Run this code »<?php
// Sample array
$numbers = array(1, 2, 5, 7, 10);
// Getting the sum of array values
echo array_sum($numbers); // Prints: 25
?>Parameters
The array_sum() function accepts the following parameters.
| Parameter | Description |
|---|---|
| array | Required. Specifies the array to work on. |
More Examples
Here're some more examples showing how array_sum() function actually works:
You can also use this function with associative arrays having numeric values, as shown here:
Example
Run this code »<?php
// Sample array
$persons = array("Harry"=>18, "Clark"=>32, "John"=>24);
// Getting the sum of array values
echo array_sum($persons); // Prints: 74
?>