(PECL ds >= 1.0.0)
Ds\Deque::unshift — Adds values to the front of the deque.
Adds values to the front of the deque, moving all the current values forward to make room for the new values.
values
The values to add to the front of the deque.
Note:
Multiple values will be added in the same order that they are passed.
값을 반환하지 않습니다.
Example #1 Ds\Deque::unshift() example
<?php
$deque = new \Ds\Deque([1, 2, 3]);
$deque->unshift("a");
$deque->unshift("b", "c");
print_r($deque);
?>
위 예제의 출력 예시:
Ds\Deque Object ( [0] => b [1] => c [2] => a [3] => 1 [4] => 2 [5] => 3 )