PHP DsMap sum() Function

PHP Ds\Set sum() Function

Last Updated : 16 Aug, 2019

The Ds\Set::sum() function of Ds\Set class in PHP is an inbuilt function which is used to find the sum of all of the elements present in a Set. Syntax:

number public Ds\Set::sum ( void )

Parameter: This function does not accepts any parameter. Return Value: This function returns the sum of the values present in a Set. The return type of the function can be integer or float depending on the type of values present in the Set instance. Below programs illustrate the Ds\Set::sum() function: Program 1:

php

<?php 

// Declare an empty set 
$set = new \Ds\Set([1, 2, 3, 4, 5]);

// Print the sum of all values
echo("Sum of all values is: "); 
print_r($set->sum()); 

?>

Output:

Sum of all values is: 15

Program 2:

php

<?php 

// Declare an empty set 
$set = new \Ds\Set([1.1, 2.2, 3.5, 4.9, 5]);

// Print the sum of all values
echo("Sum of all values is: "); 
print_r($set->sum()); 

?>

Output:

Sum of all values is: 16.7

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

PHP DsMap sum() Function

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