Maison > Article > développement back-end > 微信公众平台开发(十) 消息回复总结,公众平台_PHP教程
一、简介
微信公众平台提供了三种消息回复的格式,即文本回复、音乐回复和图文回复,在这一篇文章中,我们将对这三种消息回复的格式做一下简单讲解,然后封装成函数,以供读者使用。
二、思路分析
对于每一个POST请求,开发者在响应包中返回特定xml结构,对该消息进行响应(现支持回复文本、图文、语音、视频、音乐)。
三、文本回复
3.1 文本回复xml 结构
<span><<span>xml<span>> <span><<span>ToUserName<span>><span><![CDATA[<span>toUser<span>]]><span></<span>ToUserName<span>> <span><<span>FromUserName<span>><span><![CDATA[<span>fromUser<span>]]><span></<span>FromUserName<span>> <span><<span>CreateTime<span>>12345678<span></<span>CreateTime<span>> <span><<span>MsgType<span>><span><![CDATA[<span>text<span>]]><span></<span>MsgType<span>> <span><<span>Content<span>><span><![CDATA[<span>content<span>]]><span></<span>Content<span>> <span></<span>xml<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>
3.2 结构说明
3.3 具体实施
针对上面给出的xml 结构,我们只需要在对应的位置填上内容,然后格式化输出就可以了。
说明:
ToUserName 位置上填写的是$fromUsername = $postObj->FromUserName,就是把消息返回给发送信息过来的用户,即接收方账号。
FromUserName 位置上填写的是$toUsername = $postObj->ToUserName,既是开发者微信号。
这是官方的文本回复,只需实例化它的responseMsg() 方法就可以回复 “Welcome to wechat world!” 消息了。
这里我们稍做修改,返回fromUsername 和toUsername 消息,便于读者理解以上的说明。
3.4 测试结果
3.5 封装成可调用的函数
我们可以将上面的内容封装成函数,在需要回复文本的地方直接调用,方便简洁,responseText.func.inc.php 代码如下。
<span>function _response_text(<span>$object,<span>$content<span>){ <span>$textTpl = "<span><xml> <ToUserName><![CDATA[%s]]></ToUserName> <FromUserName><![CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><![CDATA[text]]></MsgType> <Content><![CDATA[%s]]></Content> <FuncFlag>%d</FuncFlag> </xml>"<span>; <span>$resultStr = <span>sprintf(<span>$textTpl, <span>$object->FromUserName, <span>$object->ToUserName, <span>time(), <span>$content, <span>$flag<span>); <span>return <span>$resultStr<span>; }</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
这样,只要传入$object 和$content,然后在需要回复文本的文件中引入该文件,然后调用 _response_text() 方法,就可以直接回复文本了。
3.6 测试代码
3.6.1 在主文件中引入回复文本的函数文件
<span>require_once 'responseText.func.inc.php';</span>
3.6.2 普通消息回复
<span>public <span>function handleText(<span>$postObj<span>) { <span>$keyword = <span>trim(<span>$postObj-><span>Content); <span>if(!<span>empty( <span>$keyword<span> )) {<br /> <span>$contentStr = "微信公众平台-文本回复功能源代码"<span>; <span>//<span>$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr); <span>$resultStr = _response_text(<span>$postObj,<span>$contentStr<span>); <span>echo <span>$resultStr<span>; }<span>else<span>{ <span>echo "Input something..."<span>; } }</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
3.6.3 关注时回复
<span>public <span>function handleEvent(<span>$object<span>) { <span>$contentStr = ""<span>; <span>switch (<span>$object-><span>Event) { <span>case "subscribe": <span>$contentStr = "感谢您关注【卓锦苏州】"."\n"."微信号:zhuojinsz"<span>; <span>break<span>; <span>default : <span>$contentStr = "Unknow Event: ".<span>$object-><span>Event; <span>break<span>; } <span>$resultStr = _response_text(<span>$object, <span>$contentStr<span>); <span>return <span>$resultStr<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>
3.7 测试结果
回复文本成功。
四、图文回复
4.1 图文回复xml 结构
<span><<span>xml<span>> <span><<span>ToUserName<span>><span><![CDATA[<span>toUser<span>]]><span></<span>ToUserName<span>> <span><<span>FromUserName<span>><span><![CDATA[<span>fromUser<span>]]><span></<span>FromUserName<span>> <span><<span>CreateTime<span>>12345678<span></<span>CreateTime<span>> <span><<span>MsgType<span>><span><![CDATA[<span>news<span>]]><span></<span>MsgType<span>> <span><<span>ArticleCount<span>>2<span></<span>ArticleCount<span>> <span><<span>Articles<span>> <span><<span>item<span>> <span><<span>Title<span>><span><![CDATA[<span>title1<span>]]><span></<span>Title<span>> <span><<span>Description<span>><span><![CDATA[<span>description1<span>]]><span></<span>Description<span>> <span><<span>PicUrl<span>><span><![CDATA[<span>picurl<span>]]><span></<span>PicUrl<span>> <span><<span>Url<span>><span><![CDATA[<span>url<span>]]><span></<span>Url<span>> <span></<span>item<span>> <span><<span>item<span>> <span><<span>Title<span>><span><![CDATA[<span>title<span>]]><span></<span>Title<span>> <span><<span>Description<span>><span><![CDATA[<span>description<span>]]><span></<span>Description<span>> <span><<span>PicUrl<span>><span><![CDATA[<span>picurl<span>]]><span></<span>PicUrl<span>> <span><<span>Url<span>><span><![CDATA[<span>url<span>]]><span></<span>Url<span>> <span></<span>item<span>> <span></<span>Articles<span>> <span></<span>xml<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></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>
4.2 结构说明
类似文本回复的格式,只需要在相应的位置填上对应的内容就可以回复图文信息了。
4.3 具体实施
图文回复可以是单图文,也可以是多图文,这里我们先以单图文的案例来引导读者,然后再引出多图文。
我们将回复图文的xml 结构分解成为以下三个结构,图文头,图文体,图文尾,图文体就是图文回复时看到的标题,描述,图片URL和原文URL。
$newsTplHead = "<span><<span>xml<span>> <span><<span>ToUserName<span>><span><![CDATA[<span>%s<span>]]><span></<span>ToUserName<span>> <span><<span>FromUserName<span>><span><![CDATA[<span>%s<span>]]><span></<span>FromUserName<span>> <span><<span>CreateTime<span>>%s<span></<span>CreateTime<span>> <span><<span>MsgType<span>><span><![CDATA[<span>news<span>]]><span></<span>MsgType<span>> <span><<span>ArticleCount<span>>1<span></<span>ArticleCount<span>> <span><<span>Articles<span>><span>"; $newsTplBody = "<span><<span>item<span>> <span><<span>Title<span>><span><![CDATA[<span>%s<span>]]><span></<span>Title<span>> <span><<span>Description<span>><span><![CDATA[<span>%s<span>]]><span></<span>Description<span>> <span><<span>PicUrl<span>><span><![CDATA[<span>%s<span>]]><span></<span>PicUrl<span>> <span><<span>Url<span>><span><![CDATA[<span>%s<span>]]><span></<span>Url<span>> <span></<span>item<span>><span>"; $newsTplFoot = "<span></<span>Articles<span>> <span><<span>FuncFlag<span>>0<span></<span>FuncFlag<span>> <span></<span>xml<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>
接下来,我们对三段结构分别插入对应内容:
A. $newsTplHead
$header = sprintf($newsTplHead, $object->FromUserName, $object->ToUserName, time());
B. $newsTplBody
<span>$title = $newsContent['title']; $desc = $newsContent['description']; $picUrl = $newsContent['picUrl']; $url = $newsContent['url']; $body = sprintf($newsTplBody, $title, $desc, $picUrl, $url);</span>
说明:$newsContent 是从主文件传入函数的图文数组。
C. $newsTplFoot
<span>$FuncFlag = 0; $footer = sprintf($newsTplFoot, $FuncFlag);</span>
然后将三段进行拼接返回就可以回复单条图文了。
return $header.$body.$footer;
将以上内容写到一个函数里,命名为 _response_news() 函数,以供下面调用测试。
4.4 测试代码
4.4.1 在主文件中引入回复图文的函数文件
<span>require_once 'responseNews.func.inc.php';</span>
4.4.2 创建数组并传入
在主文件中,只需要向 _response_news() 函数中传入一个数组和$postObj 即可。
<span>$record=<span>array<span>( 'title' =>'山塘街', 'description' =>'山塘街东起阊门渡僧桥,西至苏州名胜虎丘山的望山桥,长约七里,所以苏州俗语说“七里山塘到虎丘”...', 'picUrl' => 'http://thinkshare.duapp.com/images/suzhou.jpg', 'url' =>'http://mp.weixin.qq.com/mp/appmsg/show?__biz=MjM5NDM0NTEyMg==&appmsgid=10000046&itemidx=1&sign=9e7707d5615907d483df33ee449b378d#wechat_redirect'<span> ); <span>$resultStr = _response_news(<span>$postObj,<span>$record<span>); <span>echo <span>$resultStr;</span></span></span></span></span></span></span></span></span></span>
4.5 测试结果
点击进入查看
单图文回复测试成功。
4.6 多图文回复
有了上面的引导,读者应该能够想到回复多图文的思路了,就是将多维数组中的值循环放到相应的位置,然后拼接起来就可以了,下面进行讲解。
4.6.1 获取图文条数
<span>$bodyCount = <span>count(<span>$newsContent);</span></span></span>
4.6.2 判断图文条数
因为微信限制了回复的图文消息数为10条以内,所以需要判断图文条数,如果小于10条,则图文数等于原来的图文数,如果大于等于10条,则强制限制为10条。
<span>$bodyCount = <span>$bodyCount < 10 ? <span>$bodyCount : 10;</span></span></span>
4.6.3 组织图文体
图文头和图文尾和上面单图文一样,不再赘述,主要是图文体的组织。
用foreach 循环出数组的内容并赋予图文体,并进行拼接:
<span>foreach(<span>$newsContent <span>as <span>$key => <span>$value<span>){ <span>$body .= <span>sprintf(<span>$newsTplBody, <span>$value['title'], <span>$value['description'], <span>$value['picUrl'], <span>$value['url'<span>]); }</span></span></span></span></span></span></span></span></span></span></span></span></span></span>
说明:$newsContent 是从主文件传入函数的图文数组。
4.6.4 拼接并返回
<span>return <span>$header.<span>$body.<span>$footer;</span></span></span></span>
将以上内容写到一个函数里,命名为 _response_multiNews() 函数,以供下面调用测试。
4.7 测试多图文
4.7.1 在主文件中引入回复多图文的函数文件
<span>require_once 'responseMultiNews.func.inc.php';</span>
4.7.2 创建多维数组并传入
<span>$record[0]=<span>array<span>( 'title' =>'观前街', 'description' =>'观前街位于江苏苏州市区,是成街于清朝时期的百年商业老街,街上老店名店云集,名声远播海内外...', 'picUrl' => 'http://joythink.duapp.com/images/suzhou.jpg', 'url' =>'http://mp.weixin.qq.com/mp/appmsg/show?__biz=MjM5NDM0NTEyMg==&appmsgid=10000052&itemidx=1&sign=90518631fd3e85dd1fde7f77c04e44d5#wechat_redirect'<span> ); ...... <span>$record[11]=<span>array<span>( 'title' =>'平江路', 'description' =>'平江路位于苏州古城东北,是一条傍河的小路,北接拙政园,南眺双塔,全长1606米,是苏州一条历史攸久的经典水巷。宋元时候苏州又名平江,以此名路...', 'picUrl' => 'http://joythink.duapp.com/images/suzhouScenic/pingjianglu.jpg', 'url' =>'http://mp.weixin.qq.com/mp/appmsg/show?__biz=MjM5NDM0NTEyMg==&appmsgid=10000056&itemidx=1&sign=ef18a26ce78c247f3071fb553484d97a#wechat_redirect'<span> ); <span>$resultStr = _response_multiNews(<span>$postObj,<span>$record<span>); <span>echo <span>$resultStr;</span></span></span></span></span></span></span></span></span></span></span></span></span></span>
4.8 测试多图文结果
点击进入查看
测试多图文成功。
五、音乐回复
微信还提供了一种消息回复的格式,即音乐回复,下面我们编写程序测试一下。
注意:由于音乐版权的问题,现在很少有回复音乐的API,开放的API 查询出来的音乐信息也有很多是不正确的。所以在这里,我们上传几首音乐到自己的服务器空间测试。
本地文件:
测试是否能够正常播放:
5.1 音乐回复xml 结构
<span><<span>xml<span>> <span><<span>ToUserName<span>><span><![CDATA[<span>toUser<span>]]><span></<span>ToUserName<span>> <span><<span>FromUserName<span>><span><![CDATA[<span>fromUser<span>]]><span></<span>FromUserName<span>> <span><<span>CreateTime<span>>12345678<span></<span>CreateTime<span>> <span><<span>MsgType<span>><span><![CDATA[<span>music<span>]]><span></<span>MsgType<span>> <span><<span>Music<span>> <span><<span>Title<span>><span><![CDATA[<span>TITLE<span>]]><span></<span>Title<span>> <span><<span>Description<span>><span><![CDATA[<span>DESCRIPTION<span>]]><span></<span>Description<span>> <span><<span>MusicUrl<span>><span><![CDATA[<span>MUSIC_Url<span>]]><span></<span>MusicUrl<span>> <span><<span>HQMusicUrl<span>><span><![CDATA[<span>HQ_MUSIC_Url<span>]]><span></<span>HQMusicUrl<span>> <span></<span>Music<span>> <span></<span>xml<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>
5.2 结构说明
5.3 具体实施
我们先做一个固定的歌曲回复来引导读者,然后再引出更高级别的歌曲查询回复。
5.3.1 在xml 结构的相应位置插入相应数据
<span><<span>Music<span>> <span><<span>Title<span>><span><![CDATA[<span>Far Away From Home<span>]]><span></<span>Title<span>> <span><<span>Description<span>><span><![CDATA[<span>Groove Coverage<span>]]><span></<span>Description<span>> <span><<span>MusicUrl<span>><span><![CDATA[<span>http://thinkshare.duapp.com/music/10001.mp3<span>]]><span></<span>MusicUrl<span>> <span><<span>HQMusicUrl<span>><span><![CDATA[<span>http://thinkshare.duapp.com/music/10001.mp3<span>]]><span></<span>HQMusicUrl<span>> <span></<span>Music<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>
5.3.2 测试代码
<span>$resultStr = _response_music(<span>$postObj,<span>$keyword<span>); <span>echo <span>$resultStr; </span></span></span></span></span></span>
5.3.3 测试结果
5.4 模拟点歌
有了上面的简单案例引导,读者应该可以想到模拟点歌的具体实现了吧,下面就来简单介绍一下。
思路:将歌曲代码和对应的歌曲名存入数据库,用户输入歌曲名,在数据库中找到歌曲名对应的歌曲编号,然后就可以生成MusicUrl 回复用户了。
5.4.1 创建数据库
建表语句及数据文件:
<span>CREATE <span>TABLE <span>IF <span>NOT <span>EXISTS<span> `tbl_music` ( `music_id` <span>int(<span>11) <span>NOT <span>NULL<span>, `music_name` <span>varchar(<span>40) <span>NOT <span>NULL<span>, `music_singer` <span>varchar(<span>40) <span>NOT <span>NULL<span>, `music_lrc` <span>text <span>NOT <span>NULL<span>, <span>PRIMARY <span>KEY<span> (`music_id`) ) ENGINE<span>=MyISAM <span>DEFAULT CHARSET<span>=<span>utf8; <span>INSERT <span>INTO `tbl_music` (`music_id`, `music_name`, `music_singer`, `music_lrc`) <span>VALUES<span> (<span>10001, <span>'<span>Far Away From Home<span>', <span>'<span>Groove Coverage<span>', <span>'<span>far away from home<span>'<span>), (<span>10002, <span>'<span>The Dawn<span>', <span>'<span>Dreamtale<span>', <span>'<span>the dawn<span>'<span>), (<span>20002, <span>'<span>董小姐<span>', <span>'<span>宋冬野<span>', <span>'<span>董小姐<span>'<span>), (<span>20001, <span>'<span>左边<span>', <span>'<span>杨丞琳<span>', <span>'<span>左边<span>');</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
5.4.2 _response_music() 函数编写
A. 引入数据库操作文件
<span>require_once('mysql_bae.func.php');</span>
B. 数据库操作及数据处理
<span>$query = "SELECT * FROM tbl_music WHERE music_name LIKE '%<span>$musicKeyword%'"<span>; <span>$result = _select_data(<span>$query<span>); <span>$rows = <span>mysql_fetch_array(<span>$result,<span> MYSQL_ASSOC); <span>$music_id = <span>$rows[music_id];</span></span></span></span></span></span></span></span></span></span></span></span>
注: $musicKeyword 为从主文件传入的歌曲名关键字,这里使用模糊查询,只取第一条数据。
C. 判断是否查询到
<span>if(<span>$music_id <> ''<span>) { <span>$music_name = <span>$rows<span>[music_name]; <span>$music_singer = <span>$rows<span>[music_singer]; <span>$musicUrl = "http://thinkshare.duapp.com/music/".<span>$music_id.".mp3"<span>; <span>$HQmusicUrl = "http://thinkshare.duapp.com/music/".<span>$music_id.".mp3"<span>; <span>$resultStr = <span>sprintf(<span>$musicTpl, <span>$object->FromUserName, <span>$object->ToUserName, <span>time(), <span>$music_name, <span>$music_singer, <span>$musicUrl, <span>$HQmusicUrl<span>); <span>return <span>$resultStr<span>; }<span>else<span>{ <span>return ""<span>; }</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
说明:如果查询到歌曲信息,按照xml 结构返回数据;如果未查询到,则返回空,用于主文件判断。
将以上代码封装成 _response_music() 函数并保存为responseMusic.func.inc.php 文件供主文件调用。
5.4.3 测试代码
A. 引入回复音乐和回复文本的函数文件
//引入回复音乐的函数文件
require_once 'responseMusic.func.inc.php';
//引入回复文本的函数文件
<span>require_once 'responseText.func.inc.php';</span>
B. 调用
<span>if(!<span>empty( <span>$keyword<span> )) { <span>$resultStr = _response_music(<span>$postObj,<span>$keyword<span>); <span>if(<span>$resultStr <> ''<span>) { <span>echo <span>$resultStr<span>; }<span>else<span> { <span>echo _response_text(<span>$postObj,"未查询到【".<span>$keyword."】的歌曲信息!"<span>); } }</span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span></span>
说明:如果查询到歌曲信息,则返回所得信息,如果未查询到,则调用 _response_text() 函数返回文本信息。
5.5 模拟点歌测试
回复音乐测试成功。
$resultStr=" 在“高级功能“——”编辑者模式“——关键词回复”——“选图文”
给你个我代码里面用到的例子吧,具体里面字符串的话自己替换
希望您能采纳!谢谢
二自动回复里面想是图文的话 需要进“开发者模式” 只不过开发者模式是需要接口的