# Ds\Deque::join

(PECL ds >= 1.0.0)

Ds\Deque::join — Joins all values together as a string

### 说明

public Ds\Deque::join(string `$glue` = ?): string

Joins all values together as a string using an optional separator between each value.

### 参数

`glue`

  An optional string to separate each value.

### 返回值

All values of the deque joined together as a string.

### 示例

示例 #1 Ds\Deque::join() example using a separator string

`<?php
$deque = new \Ds\Deque(["a", "b", "c", 1, 2, 3]);
var_dump($deque->join("|"));
?>`

以上示例的输出类似于：

    string(11) "a|b|c|1|2|3"

示例 #2 Ds\Deque::join() example without a separator string

`<?php
$deque = new \Ds\Deque(["a", "b", "c", 1, 2, 3]);
var_dump($deque->join());
?>`

以上示例的输出类似于：

    string(11) "abc123"

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