Ds\Set::sum

(PECL ds >= 1.0.0)

Ds\Set::sumReturns the sum of all values in the set.

설명

public number Ds\Set::sum ( void )

Returns the sum of all values in the set.

Note:

Arrays and objects are considered equal to zero when calculating the sum.

인수

이 함수는 인수가 없습니다.

반환값

The sum of all the values in the set as either a float or int depending on the values in the set.

예제

Example #1 Ds\Set::sum() integer example

<?php
$set 
= new \Ds\Set([123]);
var_dump($set->sum());
?>

위 예제의 출력 예시:

int(6)

Example #2 Ds\Set::sum() float example

<?php
$set 
= new \Ds\Set([12.53]);
var_dump($set->sum());
?>

위 예제의 출력 예시:

float(6.5)
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