Ds\Map::sum
Ds\Map::sum
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Ds\Map::sum — Returns 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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https://secure.php.net/manual/en/ds-map.sum.php
