(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.
valuesThe values to add to the front of the deque.
注意:
Multiple values will be added in the same order that they are passed.
沒(méi)有返回值。
示例 #1 Ds\Deque::unshift() example
<?php
$deque = new \Ds\Deque([1, 2, 3]);
$deque->unshift("a");
$deque->unshift("b", "c");
print_r($deque);
?>
以上例程的輸出類(lèi)似于：
Ds\Deque Object
(
[0] => b
[1] => c
[2] => a
[3] => 1
[4] => 2
[5] => 3
)