微信公众平台开发（十二） 发送客服消息_PHP教程

当用户主动发消息给公众号的时候（包括发送信息、点击自定义菜单、订阅事件、扫描二维码事件、支付成功事件、用户维权），微信将会把消息数据推送给开发者，开发者在一段时间内（目前修改为48小时）可以调用客服消息接口，通过POST一个JSON数据包来发送消息给普通用户，在48小时内不限制发送次数。此接口主要用于客服等有人工消息处理环节的功能，方便开发者为用户提供更加优质的服务。

官方文档中只提供了一个发送客服消息的接口，开发者只要POST一个特定的JSON数据包即可实现消息回复。在这里，我们打算做成一个简单的平台，可以记录用户消息，并且用网页表格的形式显示出来，然后可以对消息进行回复操作。

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首先，我们使用数据库记录用户主动发送过来的消息，然后再提取出来展示到页面，针对该消息，进行回复。这里我们只讨论文本消息，关于其他类型的消息，大家自行研究。

3.1 创建数据表

创建一张数据表tbl_customer 来记录用户消息。

<span><span><span>
<span create> <span table><span><span bigint>(<span>) unsigned <span not> <span null> AUTO_INCREMENT COMMENT <span><span><span><span><span char>(<span>) <span not> <span null> COMMENT <span><span><span><span><span varchar>(<span>) <span not> <span null> COMMENT <span><span><span><span><span datetime> <span not> <span null> COMMENT <span><span><span><span><span primary> <span key><span><span key><span engine><span>MyISAM  <span default> CHARSET<span>utf8 ;</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

3.2 创建sql.func.php 文件

创建 _query($_sql) {} 函数，来执行INSERT 操作。

<span function> _query(<span><span><span if>(!<span> = <span mysql_query>(<span><span><span exit>('SQL执行失败'.<span mysql_error><span><span return> <span><span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

<span><span>
<span require_once> 'sql.func.php'<span><span function> _record_message(<span>,<span>,<span><span><span><span>
    _query("INSERT INTO tbl_customer(from_user,message,time_stamp) VALUES('<span>','<span>','<span>')"<span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

3.4 处理并记录文本消息

A. 引入回复文本的函数文件，引入记录消息的函数文件

<span><span>
<span require_once> 'responseText.func.inc.php'<span><span><span>
<span require_once> 'record_message.func.inc.php';</span></span></span></span></span></span></span>

B. 记录消息入数据库，并返回给用户刚才发送的消息，在这里，你可以修改成其他的文本，比如：“你好，消息已收到，我们会尽快回复您！” 等等。

    <span><span>
    <span public> <span function> handleText(<span><span><span><span>
        <span> = <span>-><span fromusername><span> = <span trim>(<span>-><span content><span> = <span date>('Y-m-d H:i:s'<span><span if>(!<span empty>( <span><span><span><span>
            _record_message(<span>,<span>,<span><span><span> = <span><span><span><span>
            <span> = _response_text(<span>,<span><span><span echo> <span><span><span else><span><span echo> "Input something..."<span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

我们的最终效果大概如下所示，主要的工作在“信息管理中心”这块，其他的页面布局等等，不在这里赘述了，只讲解消息展示这块。

4.1 具体实施

引入数据库操作文件，执行分页模块，执行数据库查询，将查询出来的结果赋给$_result 供下面使用。

<span><span>
<span require_once> 'includes/sql.func.php'<span><span><span>
<span global> <span>,<span><span _page>"SELECT id FROM tbl_customer",15);        <span><span>
<span> = _query("SELECT * FROM tbl_customer ORDER BY id DESC LIMIT <span>,<span>");</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

将$_result 遍历出来，依次插入表格中。

<span><span form><span>
    <span><span table><span cellspacing><span><span>
        <span><span tr><span><span th><span>消息ID<span><span th><span><span th><span>发送者<span><span th><span><span th><span>消息体<span><span th><span><span th><span>消息时间<span><span th><span><span th><span>操作<span><span th><span><span tr><span>
        <span><span php while _fetch_array_list array><span>
        <span><span tr><span><span td><span><span><span php echo><span><span><span td><span><span td><span><span><span php echo><span><span><span td><span><span td><span><span><span php echo><span><span><span td><span><span td><span><span><span php echo><span><span><span td><span><span td><span><span a><span href><span echo><span><span input><span type><span><span value><span> <span><span a><span><span td><span><span tr><span>
        <span><span php _free_result><span>
    <span><span table><span>
<span><span form><span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

说明：在每条消息后，都有一个“回复”操作，点击该按钮，向reply.php文件中传入fromusername和用户发送的消息，为回复用户消息做准备。

5.1 创建客服消息回复函数文件customer.php

微信发送客服消息的接口URL如下：

https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=ACCESS_TOKEN

需要POST的JSON数据包格式如下：

<span world></span>

所以，根据上面的提示，我们编写处理函数 _reply_customer($touser,$content)，调用的时候，传入touser和需要回复的content，即可发送客服消息。

<span function> _reply_customer(<span>,<span><span><span><span>
    <span>="wxef78f22f877db4c2"<span><span>="3f3aa6ea961b6284057b8170d50e2048"<span><span>="https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".<span>."&secret=".<span><span><span>=<span file_get_contents>(<span><span><span>=json_decode(<span><span><span>=<span>-><span access_token><span> = '<span>'.<span>.'<span>'.<span>.'<span>'<span><span> = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=".<span><span><span> = https_post(<span>,<span><span><span> = json_decode(<span><span><span return> <span><span><span function> https_post(<span>,<span><span><span> =<span curl_init curl_setopt><span>, CURLOPT_URL, <span><span curl_setopt><span>, CURLOPT_SSL_VERIFYPEER, <span false><span curl_setopt><span>, CURLOPT_SSL_VERIFYHOST, <span false><span curl_setopt><span>, CURLOPT_POST, 1<span curl_setopt><span>, CURLOPT_POSTFIELDS, <span><span curl_setopt><span>, CURLOPT_RETURNTRANSFER, 1<span><span> = curl_exec(<span><span><span if> (curl_errno(<span><span><span return> 'Errno'.curl_error(<span><span curl_close><span><span><span return> <span><span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

下面，我们就将上面写好的函数引入到消息回复页面，实现发送客服消息的功能。

微信公众平台开发入门教程 中文WORD版

由于微信的大热，为了更好的方便使用微信的用户查询一些信息，这篇文章是入门级的微信公众平台开发教程，需要的朋友可以参考下 这篇入门教程将引导你完成如下任务： 创建百度云平台应用启用微信公众平台开发模式获取订阅、文字、图片、语音、视频消息回复文本、图文及音乐消息程序开发

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5.2 点击“回复”按钮，带上fromusername和message参数跳转到reply.php。

5.3 reply.php 页面显示

5.4 reply.php文件分析

<span><span>
<span require_once> '../customer.php';</span></span></span>

form表单提交到relpy.php本身，带有action=relpy.

<span><span form><span method><span><span action><span><span>
    <span><span dl><span>
        <span><span dd><span><span strong><span>收件人：<span><span strong><span><span input><span type><span><span name><span><span class><span><span value><span echo> <span><span dd><span>
        <span><span dd><span><span strong><span>原消息：<span><span strong><span><span input><span type><span><span name><span><span class><span><span value><span echo> <span><span dd><span>
        <span><span dd><span><span span><span><span strong><span>内　容：<span><span strong><span><span span><span><span textarea><span rows><span><span cols><span><span name><span><span><span textarea><span><span dd><span>
        <span><span dd><span><span input><span type><span><span class><span><span value><span> <span><span dd><span>
    <span><span dl><span>
<span><span form><span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

action=reply 动作处理。

<span if>(<span>['action'] == "reply"<span><span> = <span>['tousername'<span><span> = <span>['content'<span><span> = _reply_customer(<span>, <span><span><span if>(<span>->errcode == "0"<span _location>'消息回复成功！', 'index.php'<span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>

说明：POST方式获取touser, content，然后调用_reply_customer($touser, $content)方法处理，处理成功，则弹出“消息回复成功！”，然后跳转到index.php页面，完成发送客服消息过程。

6.1 微信用户发送消息

6.2 平台消息管理

6.3 发送客服消息

再次发送客服消息

发送客服消息测试成功！

http://files.cnblogs.com/mchina/customer.rar

微信发送客服消息本身很简单，只需POST一个JSON数据包到指定接口URL即可。这里我们进行了扩展，写成一个简单的平台，方便企业的管理。还有很多需要补充和改进的地方，例如，记录客服发送的消息；将相同用户的消息记录成一个集合；实现其他格式的消息回复等，有待读者自行思考开发。

David Camp

• 业务合作，请联系作者QQ：562866602
• 我的微信号：mchina_tang
• 给我写信：mchina_tang@qq.com

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