PHP | Ds\Sequence sum() Function

The Ds\Sequence::sum() function is an inbuilt function in PHP which is used to return the sum of all values of the sequence.

Syntax:

number abstract public Ds\Sequence::sum( void )

Parameters: This function does not accept any parameters.

Return value: This function returns the sum of all sequence elements in form of integer or float.

Below programs illustrate the Ds\Sequence::sum() function in PHP:

Program 1:

<?php

// Create new sequence
$seq =  new \Ds\Vector([5, 7, 8, 14, 23]);

// Use sum() function to find
// the sum of sequence element
var_dump($seq->sum());

?>

Output:

int(57)

Program 2:

<?php

// Create new sequence
$seq =  new \Ds\Vector([5, 7.5, 8.4, 14, 23]);

// Use sum() function to find
// the sum of sequence element
var_dump($seq->sum());

?>

Output:

float(57.9)

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