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    Ds\Sequence::find

    (PECL ds >= 1.0.0)

    Ds\Sequence::find — Attempts to find a value's index

    説明

    abstract public Ds\Sequence::find(mixed $value): mixed

    Returns the index of the value, or false if not found.

    パラメータ

    value

    The value to find.

    戻り値

    The index of the value, or false if not found.

    注意:

    Values will be compared by value and by type.

    例

    例1 Ds\Sequence::find() example

    <?php
    $sequence     = new \Ds\Vector(["a", 1, true]);

    var_dump($sequence->find("a")); // 0
    var_dump($sequence->find("b")); // false
    var_dump($sequence->find("1")); // false
    var_dump($sequence->find(1)); // 1
    ?>

    上の例の出力は、 たとえば以下のようになります。

    int(0)
bool(false)
bool(false)
int(1)

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