Ds\Set::sum

Returns the sum of all values in the set.

Description

public number Ds\Set::sum ( void )

Returns the sum of all values in the set.

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 set as either a float or int depending on the values in the set.

Examples

Example #1 Ds\Set::sum integer example

<?php
$set 
= new \Ds\Set([123]);
var_dump($set->sum());
?>

The above example will output something similar to:

int(6)

Example #2 Ds\Set::sum float example

<?php
$set 
= new \Ds\Set([12.53]);
var_dump($set->sum());
?>

The above example will output something similar to:

float(6.5)