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Ds\Map::sum

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Ds\Map::sumReturns the sum of all values in the map.

Description

public number Ds\Map::sum ( void )

Returns the sum of all values in the map.

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

Examples

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

<?php
$map 
= new \Ds\Map(["a" => 1"b" => 2"c" => 3]);
var_dump($map->sum());
?>

The above example will output something similar to:

int(6)

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

<?php
$map 
= new \Ds\Map(["a" => 1"b" => 2.5"c" => 3]);
var_dump($map->sum());
?>

The above example will output something similar to:

float(6.5)
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