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    Ds\Sequence::shift

    (PECL ds >= 1.0.0)

    Ds\Sequence::shift — Removes and returns the first value.

    설명

    abstract public mixed Ds\Sequence::shift ( void )

    Removes and returns the first value.

    인수

    이 함수는 인수가 없습니다.

    반환값

    The first value, which was removed.

    오류/예외

    UnderflowException if empty.

    예제

    Example #1 Ds\Sequence::shift() example

    <?php
    $sequence     = new \Ds\Vector(["a", "b", "c"]);

    var_dump($sequence->shift());
    var_dump($sequence->shift());
    var_dump($sequence->shift());
    ?>

    위 예제의 출력 예시:

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