# Ds\Vector::insert

(PECL ds >= 1.0.0)

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

### 说明

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

Inserts values into the vector 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\Vector::insert() example

`<?php
$vector = new \Ds\Vector();
$vector->insert(0, "e"); // [e]
$vector->insert(1, "f"); // [e, f]
$vector->insert(2, "g"); // [e, f, g]
$vector->insert(0, "a", "b"); // [a, b, e, f, g]
$vector->insert(2, ...["c", "d"]); // [a, b, c, d, e, f, g]
var_dump($vector);
?>`

以上示例的输出类似于：

    object(Ds\Vector)#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"
    }

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