# Ds\Vector::sum

(PECL ds >= 1.0.0)

Ds\Vector::sum — Returns the sum of all values in the vector

### Description

public Ds\Vector::sum ( ) : int|float

Returns the sum of all values in the vector.

> Note:

> Arrays and objects are considered equal to zero when calculating the sum.

### Parameters

This function has no parameters.

### Return Values

The sum of all the values in the vector as either a float or int depending on the values in the vector.

### Examples

Example #1 Ds\Vector::sum() integer example

`<?php
$vector = new \Ds\Vector([1, 2, 3]);
var_dump($vector->sum());
?>`

The above example will output something similar to:

    int(6)

Example #2 Ds\Vector::sum() float example

`<?php
$vector = new \Ds\Vector([1, 2.5, 3]);
var_dump($vector->sum());
?>`

The above example will output something similar to:

    float(6.5)