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    Ds\Sequence::contains

    (PECL ds >= 1.0.0)

    Ds\Sequence::contains — Determines if the sequence contains given values

    説明

    abstract public Ds\Sequence::contains(mixed ...$values): bool

    Determines if the sequence contains all values.

    パラメータ

    values

    Values to check.

    戻り値

    false if any of the provided values are not in the sequence, true otherwise.

    例

    例1 Ds\Sequence::contains() example

    <?php
    $sequence     = new \Ds\Vector(['a', 'b', 'c', 1, 2, 3]);

    var_dump($sequence->contains('a')); // true
    var_dump($sequence->contains('a', 'b')); // true
    var_dump($sequence->contains('c', 'd')); // false

    var_dump($sequence->contains(...['c', 'b', 'a'])); // true

    // Always strict
    var_dump($sequence->contains(1)); // true
    var_dump($sequence->contains('1')); // false

    var_dump($sequece->contains(...[])); // true
    ?>

    上の例の出力は、 たとえば以下のようになります。

    bool(true)
bool(true)
bool(false)
bool(true)
bool(true)
bool(false)
bool(true)

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