Returns the sum of all values in the deque

# Ds\Deque::sum

(PECL ds >= 1.0.0)

Ds\Deque::sum — Returns the sum of all values in the deque

### Descrierea

public Ds\Deque::sum ( void ) : number

Returns the sum of all values in the deque.

> Notă:

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

### Parametri

Această funcție nu are parametri.

### Valorile întoarse

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

### Exemple

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

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

Exemplul de mai sus va afișa ceva similar cu:

    int(6)

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

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

Exemplul de mai sus va afișa ceva similar cu:

    float(6.5)