Determines if the deque contains given values
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    Ds\Deque::contains

    (PECL ds >= 1.0.0)

    Ds\Deque::contains — Determines if the deque contains given values

    Description

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

    Determines if the deque contains all values.

    Parameters

    values

    Values to check.

    Return Values

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

    Examples

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

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