Returns the value at a given index

# Ds\Set::get

(PECL ds >= 1.0.0)

Ds\Set::get — Returns the value at a given index

### 说明

public function Ds\Set::get(int `$index`): mixed

Returns the value at a given index.

### 参数

`index`

  The index to access, starting at 0.

### 返回值

The value at the requested index.

### 错误／异常

OutOfRangeException if the index is not valid.

### 示例

示例 #1 Ds\Set::get() example

    <?php
    $set = new \Ds\Set(["a", "b", "c"]);

    var_dump($set->get(0));
    var_dump($set->get(1));
    var_dump($set->get(2));
    ?>

以上示例的输出类似于：

    string(1) "a"
    string(1) "b"
    string(1) "c"

示例 #2 Ds\Set::get() example using array syntax

    <?php
    $set = new \Ds\Set(["a", "b", "c"]);

    var_dump($set[0]);
    var_dump($set[1]);
    var_dump($set[2]);
    ?>

以上示例的输出类似于：

    string(1) "a"
    string(1) "b"
    string(1) "c"

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