Ds\Deque::rotate
(PECL ds >= 1.0.0)
Ds\Deque::rotate — Rotates the deque by a given number of rotations.
Описание
public void Ds\Deque::rotate
( int
$rotations
)
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.
Список параметров
-
rotations -
The number of times the deque should be rotated.
Возвращаемые значения
Эта функция не возвращает значения после выполнения.. The deque of the current instance will be rotated.
Примеры
Пример #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);
$deque->rotate(2); // "b" and "c" are both shifted, the pushed.
print_r($deque);
?>
Результатом выполнения данного примера будет что-то подобное:
(
[0] => b
[1] => c
[2] => d
[3] => a
)
Ds\Deque Object
(
[0] => d
[1] => a
[2] => b
[3] => c
)
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