PHP DsSet sum() Function

PHP Ds\Map sum() Function

Last Updated : 21 Aug, 2019

The Ds\Map::sum() function of PHP is used to get the sum of all of the values present in the Map instance. Syntax:

number public Ds\Map::sum ( void )

Parameters: This function does not accepts any parameter. Return value: This function returns the sum of all of the values present in the Map instance. The return type of the function can be int or float depending on the type of value present in the Map. Below programs illustrate the Ds\Map::sum() function: Program 1:

php

<?php
// PHP program to illustrate sum() function

$map = new \Ds\Map([1 => 10, 2 => 20, 
                                3 => 30]);

// The function returns an int which is 
// the sum of values present in the Map
print_r($map->sum());

?>

Output:

Program 2:

php

<?php
// PHP program to illustrate sum() function

$map = new \Ds\Map([1 => 10, 2 => 20.9, 
                                3 => 30]);

// The function returns a float value which is 
// the sum of values present in the Map
print_r($map->sum());

?>

Output:

60.9

Reference: http://php.net/manual/en/ds-map.sum.php

PHP DsSet sum() Function

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