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    Ds\PriorityQueue::pop

    (PECL ds >= 1.0.0)

    Ds\PriorityQueue::pop — Removes and returns the value with the highest priority

    説明

    public Ds\PriorityQueue::pop(): mixed

    Removes and returns the value at the front of the queue, ie. the value with the highest priority.

    注意:

    Values with equal priority fall back to FIFO (first in first out).

    パラメータ

    この関数にはパラメータはありません。

    戻り値

    The removed value which was at the front of the queue.

    エラー / 例外

    UnderflowException if empty.

    例

    例1 Ds\PriorityQueue::pop() example

    <?php
    $queue     = new \Ds\PriorityQueue();

    $queue->push("a", 5);
    $queue->push("b", 15);
    $queue->push("c", 10);

    print_r($queue->pop());
    print_r($queue->pop());
    print_r($queue->pop());
    ?>

    上の例の出力は、 たとえば以下のようになります。

    string(1) "a"
string(1) "b"
string(1) "c"

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