Returns a sequence containing all the pairs of the map

# Ds\Map::pairs

(PECL ds >= 1.0.0)

Ds\Map::pairs — Returns a sequence containing all the pairs of the map

### 说明

public function Ds\Map::pairs(): Ds\Sequence

Returns a Ds\Sequence containing all the pairs of the map.

### 参数

此函数没有参数。

### 返回值

Ds\Sequence containing all the pairs of the map.

### 示例

示例 #1 Ds\Map::pairs() example

    <?php
    $map = new \Ds\Map(["a" => 1, "b" => 2, "c" => 3]);

    var_dump($map->pairs());
    ?>

以上示例的输出类似于：

    object(Ds\Vector)#8 (3) {
      [0]=>
      object(Ds\Pair)#5 (2) {
        ["key"]=>
        string(1) "a"
        ["value"]=>
        int(1)
      }
      [1]=>
      object(Ds\Pair)#6 (2) {
        ["key"]=>
        string(1) "b"
        ["value"]=>
        int(2)
      }
      [2]=>
      object(Ds\Pair)#7 (2) {
        ["key"]=>
        string(1) "c"
        ["value"]=>
        int(3)
      }
    }

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