Ds\Map::sum
PHP function
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Returns the sum of all values in the map
Description
Ds\Map::sum(): int|float
Returns the sum of all values in the map.
Note
Arrays and objects are considered equal to zero when calculating the sum.
Parameters 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
Ds\Map::sum() integer example
php
<?php
$map = new \Ds\Map(["a" => 1, "b" => 2, "c" => 3]);
var_dump($map->sum());
?>The above example will output something similar to:
output
int(6)Ds\Map::sum() float example
php
<?php
$map = new \Ds\Map(["a" => 1, "b" => 2.5, "c" => 3]);
var_dump($map->sum());
?>The above example will output something similar to:
output
float(6.5)