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    Ds\Deque::sum

    (PECL ds >= 1.0.0)

    Ds\Deque::sum — Returns the sum of all values in the deque.

    설명

    public number Ds\Deque::sum ( void )

    Returns the sum of all values in the deque.

    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 deque as either a float or int depending on the values in the deque.

    예제

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

    <?php
    $deque     = new \Ds\Deque([1, 2, 3]);
    var_dump($deque->sum());
    ?>

    위 예제의 출력 예시:

    int(6)

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

    <?php
    $deque     = new \Ds\Deque([1, 2.5, 3]);
    var_dump($deque->sum());
    ?>

    위 예제의 출력 예시:

    float(6.5)
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