Ds\Deque::insert

    (PECL ds >= 1.0.0)

    Ds\Deque::insert — Inserts values at a given index

    说明

    public Ds\Deque::insert(int $index, mixed ...$values): void

    Inserts values into the deque at a given index.

    参数

    index

    The index at which to insert. 0 <= index <= count

    注意:

    You can insert at the index equal to the number of values.

    values

    The value or values to insert.

    返回值

    没有返回值。

    错误／异常

    OutOfRangeException if the index is not valid.

    示例

    示例 #1 Ds\Deque::insert() example

    <?php
    $deque     = new \Ds\Deque();

    $deque->insert(0, "e"); // [e]
    $deque->insert(1, "f"); // [e, f]
    $deque->insert(2, "g"); // [e, f, g]
    $deque->insert(0, "a", "b"); // [a, b, e, f, g]
    $deque->insert(2, ...["c", "d"]); // [a, b, c, d, e, f, g]

    var_dump($deque);
    ?>

    以上示例的输出类似于：

    object(Ds\Deque)#1 (7) {
  [0]=>
  string(1) "a"
  [1]=>
  string(1) "b"
  [2]=>
  string(1) "c"
  [3]=>
  string(1) "d"
  [4]=>
  string(1) "e"
  [5]=>
  string(1) "f"
  [6]=>
  string(1) "g"
}

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