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

    (PECL ds >= 1.0.0)

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

    Description

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

    Determines if the sequence contains all values.

    Parameters

    values

    Values to check.

    Return Values

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

    Examples

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

    <?php$sequence = new \Ds\Vector(['a', 'b', 'c', 1, 2, 3]);var_dump($sequence->contains('a'));                // truevar_dump($sequence->contains('a', 'b'));           // truevar_dump($sequence->contains('c', 'd'));           // falsevar_dump($sequence->contains(...['c', 'b', 'a'])); // true// Always strictvar_dump($sequence->contains(1));                  // truevar_dump($sequence->contains('1'));                // falsevar_dump($sequece->contains(...[]));               // true?>

    The above example will output something similar to:

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