Ds\Deque::sum
(PECL ds >= 1.0.0)
Ds\Deque::sum — Returns the sum of all values in the deque
Description
public Ds\Deque::sum(): int|float
Returns the sum of all values in the deque.
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 deque as either a float or int depending on the values in the deque.
Examples
Example #1 Ds\Deque::sum() integer example
<?php
$deque = new \Ds\Deque([1, 2, 3]);
var_dump($deque->sum());
?>
The above example will output something similar to:
int(6)
Example #2 Ds\Deque::sum() float example
<?php
$deque = new \Ds\Deque([1, 2.5, 3]);
var_dump($deque->sum());
?>
The above example will output something similar to:
float(6.5)
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