Rotates the deque by a given number of rotations

# Ds\Deque::rotate

(PECL ds >= 1.0.0)

Ds\Deque::rotate — Rotates the deque by a given number of rotations

### Beschreibung

public function Ds\Deque::rotate(int `$rotations`): void

Rotates the deque by a given number of rotations, which is equivalent to successively calling `$deque->push($deque->shift())` if the number of rotations is positive, or `$deque->unshift($deque->pop())` if negative.

### Parameter-Liste

`rotations`

  The number of times the deque should be rotated.

### Rückgabewerte

Es wird kein Wert zurückgegeben.. The deque of the current instance will be rotated.

### Beispiele

Beispiel #1 Ds\Deque::rotate() example

    <?php
    $deque = new \Ds\Deque(["a", "b", "c", "d"]);

    $deque->rotate(1);  // "a" is shifted, then pushed.
    print_r($deque);

    $deque->rotate(2);  // "b" and "c" are both shifted, then pushed.
    print_r($deque);
    ?>

Das oben gezeigte Beispiel erzeugt eine ähnliche Ausgabe wie:

    (
        [0] => b
        [1] => c
        [2] => d
        [3] => a
    )
    Ds\Deque Object
    (
        [0] => d
        [1] => a
        [2] => b
        [3] => c
    )

`↑` and `↓` to navigate • `Enter` to select • `Esc` to close • `/` to open