This time I will bring you a detailed explanation of the steps to develop a WeChat remote control server with PHP. What are the precautions for PHP to develop a WeChat remote control server? The following is a practical case, let's take a look.
WeChat public good development is very popular, and mini programs are even more popular. So I joined in the fun and gave it a try.
The general functions are still there, but they are incomplete and I have not dealt with many places. But for communication in plain text, there is no problem.
Open configuration
The first step is to apply for a WeChat developer account. For individuals, it is enough to choose a subscription account. There is a lot of relevant information on the Internet and it is very detailed, so I won’t go into details. Let’s get straight to the point. After successfully logging in to the developer account, you can open the server-side settings, as shown below
Server environment
About the server , the official website also explains it in detail. https://mp.weixin.qq.com/wikiWe can also download the official demo to simulate.
PHP basic syntax can understand it.
<?php /**
* wechat php test
*/
//define your token
define("TOKEN", "weixin");
$wechatObj = new wechatCallbackapiTest();
$wechatObj->valid();
class wechatCallbackapiTest
{
public function valid()
{
$echoStr = $_GET["echostr"];
//valid signature , option
if($this->checkSignature()){
echo $echoStr;
exit;
}
}
public function responseMsg()
{
//get post data, May be due to the different environments
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
//extract post data
if (!empty($postStr)){
/* libxml_disable_entity_loader is to prevent XML eXternal Entity Injection,
the best way is to check the validity of xml by yourself */
libxml_disable_entity_loader(true);
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$keyword = trim($postObj->Content);
$time = time();
$textTpl = "<xml>
<tousername></tousername>
<fromusername></fromusername>
<createtime>%s</createtime>
<msgtype></msgtype>
<content></content>
<funcflag>0</funcflag>
</xml>";
if(!empty( $keyword ))
{
$msgType = "text";
$contentStr = "Welcome to wechat world!";
$resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
echo $resultStr;
}else{
echo "Input something...";
}
}else {
echo "";
exit;
}
}
private function checkSignature()
{
// you must define TOKEN by yourself
if (!defined("TOKEN")) {
throw new Exception('TOKEN is not defined!');
}
$signature = $_GET["signature"];
$timestamp = $_GET["timestamp"];
$nonce = $_GET["nonce"];
$token = TOKEN;
$tmpArr = array($token, $timestamp, $nonce);
// use SORT_STRING rule
sort($tmpArr, SORT_STRING);
$tmpStr = implode( $tmpArr );
$tmpStr = sha1( $tmpStr );
if( $tmpStr == $signature ){
return true;
}else{
return false;
}
}
}
?>Core Class
The next step is my own processing logic, refer to the official documentation. WeChat public has 6 receiving interfaces and three replying interfaces. It can be determined based on MsgType. Interface detailsVerification
private function checkSignature() {
// you must define TOKEN by yourself
if (! defined ( "TOKEN" )) {
throw new Exception ( 'TOKEN is not defined!' );
}
$signature = $_GET ["signature"];
$timestamp = $_GET ["timestamp"];
$nonce = $_GET ["nonce"];
$token = TOKEN;
$tmpArr = array (
$token,
$timestamp,
$nonce
);
// use SORT_STRING rule
sort ( $tmpArr, SORT_STRING );
$tmpStr = implode ( $tmpArr );
$tmpStr = sha1 ( $tmpStr );
if ($tmpStr == $signature) {
return true;
} else {
return false;
}
}验证方法核心就是依据咱们之前网页上设置的TOKEN来工作的，所以代码上会用得到。
回复
回复的代码需要依据客户端发送的数据的类型来区分对待，类型这块微信平台会将数据打包好封装起来，我们住需要调用内部的MsgType进行处理即可。
拓展
拓展部分，是我自己异想天开往上加的。
添加机器人
调用一个机器人接口，来代替自己发送回复，技能让用户得到一个良好的用户体验，还能愉悦大众，何乐而不为？
我这边测试了两个接口，一个是curl模式，一个是file_get_contents模式，都挺好用的啦。
<?php /**
* 图灵 机器人接口
*
* 使用curl来进行浏览器模拟并抓取数据
*/
function turing($requestStr) {
// 图灵机器人接口
$url = "http://www.tuling123.com/openapi/api";
// 用于POST请求的数据
$data = array(
'key'=>"哈哈，这个key还是得你自己去申请的啦",
'info'=>$requestStr,
);
// 构造curl下载器
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$responseStr = curl_exec($ch);
curl_close($ch);
return $responseStr;
}
/**
* 调用另外的接口
* @param unknown $req
* @return mixed
*/
function test($req){
$url = "http://api.qingyunke.com/api.php?key=free&appid=0&msg=".$req;
$result = file_get_contents($url);
$result = json_decode($result, true);
return $result['content'];
}
$req = 'hello';
$res = test($req);
echo $res;Detailed explanation of steps to develop WeChat remote control server with PHP模式
手机相对于电脑一个很大的优点就是便携，我们虽然不能随时随地携带电脑，但是却能使用手机来代替。很多时候对服务器的管理需要的Detailed explanation of steps to develop WeChat remote control server with PHP很简单，但是远程登录的时候也不方便。这个时候就用微信来帮忙传话也是不错的啦。
我平时喜欢使用Python写一些脚本，什么获取本地IP，聊天，查看内存，网速啥的，可谓是应有尽有。这下也终于能有用武之地了。利用微信的关键字匹配，就可以简单的让微信公众号当一个小小传话员啦。
这里给个思路，具体实现起来也比较简单，当做是文本来处理即可。
完整代码
下面贴出我服务器上的完整代码，有些私密的地方我做了些更改，届时按照自己的情况进行修改即可。
valid();
// 调用回复信息方法
$wechatObj->responseMsg ();
// 微信消息处理核心类
class wechatCallbackapiTest {
public function valid() {
$echoStr = $_GET ["echostr"];
// valid signature , option
if ($this->checkSignature ()) {
echo $echoStr;
exit ();
} else {
echo "验证失败！";
}
}
public function responseMsg() {
// get post data, May be due to the different environments
// 类似$_POST但是可以接受XML数据，属于增强型
$postStr = $GLOBALS ["HTTP_RAW_POST_DATA"];
// extract post data
if (! empty ( $postStr )) {
/*
* libxml_disable_entity_loader is to prevent XML eXternal Entity Injection,
* the best way is to check the validity of xml by yourself
*/
// 不解析外部数据，防止xxml漏洞
libxml_disable_entity_loader ( true );
$postObj = simplexml_load_string ( $postStr, 'SimpleXMLElement', LIBXML_NOCDATA );
$fromUsername = $postObj->FromUserName;
$toUsername = $postObj->ToUserName;
$keyword = trim ( $postObj->Content );
$time = time ();
/*
* 微信客户端发送信息的时候会附带一些参数，详见官方文档。所以要根据不同的类型，来分别做相关的处理。
* 于是MsgType 就充当这样的一个区分的标记
*/
$msgType = $postObj->MsgType;
/*
* 当有用户关注后者退订的时候，会触发相应的事件。所以再来个event事件的监听更为友好。
* $event = $postObj->Event.
* 具体的参数信息，官网上很详细。
*/
$event = $postObj->Event;
switch ($msgType) {
// 文本消息 处理部分
case "text" :
if (! empty ( $keyword )) {
// 在此处进行对关键字的匹配就可以实现：针对不同关键字组装的相应数据
if($keyword=='Detailed explanation of steps to develop WeChat remote control server with PHP' || $keyword == "music") {
$msgType = 'music';
$musictitle = "The Mountain";
$musicdescription = "夏日舒心清凉歌曲";
$musicurl = "http://101.200.58.242/wx/themaintain.mp3";
$hqmusicurl = "http://101.200.58.242/wx/themaintain.mp3";
musicMessageHandle($fromUsername, $toUsername, $time, $msgType, $musictitle, $musicdescription, $musicurl, $hqmusicurl);
}elseif($keyword == '1'){
$msgType = 'text';
$contentStr = "人生得意须尽欢，莫使金樽空对月！";
textMessageHandle($fromUsername, $toUsername, $time, $msgType, $contentStr);
}elseif($keyword == 'Detailed explanation of steps to develop WeChat remote control server with PHP模式'){
$msgType = 'text';
$contentStr = "进入Detailed explanation of steps to develop WeChat remote control server with PHP模式，开始对服务器进行管理！\n接下来将依据您输入的Detailed explanation of steps to develop WeChat remote control server with PHP对服务器进行管理！";
textMessageHandle($fromUsername, $toUsername, $time, $msgType, $contentStr);
}else {
// 直接调用 机器人接口，与用户进行交流
$msgType = "text";
$contentStr = turing($keyword)!=""?turing($keyword):"这里是微信 纯文本测试数据！";
textMessageHandle ( $fromUsername, $toUsername, $time, $msgType, $contentStr );
}
} else {
echo "您得输入点数据，我才能回复不是！";
}
break;
// 接收图片信息
case "image" :
if (! empty ( $keyword )) {
// $msgType = "image";
$contentStr = "您发送的图片看起来还真不错！";
textMessageHandle ( $fromUsername, $toUsername, $time, $msgType, $contentStr );
} else {
echo "服务器没能收到您发送的图片！";
}
break;
// 接收语音信息
case "voice" :
if (! empty ( $keyword )) {
// $msgType = "voice";
$contentStr = "您发送的语音听起来还真不错！";
textMessageHandle ( $fromUsername, $toUsername, $time, $msgType, $contentStr );
} else {
echo "服务器没能收到您发送的语音！";
}
break;
// 接收视频信息
case "video" :
if (! empty ( $keyword )) {
// $msgType = "video";
$contentStr = "您发送的视频看起来还真不错！";
textMessageHandle ( $fromUsername, $toUsername, $time, $msgType, $contentStr );
} else {
echo "服务器没能收到您发送的视频！";
}
break;
// 接收视频信息
case "shortvideo" :
if (! empty ( $keyword )) {
// $msgType = "shortvideo";
$contentStr = "您发送的小视频看起来还真不错！";
textMessageHandle ( $fromUsername, $toUsername, $time, $msgType, $contentStr );
} else {
echo "服务器没能收到您发送的小视频！";
}
break;
// 接收位置信息
case "location" :
if (! empty ( $keyword )) {
// $msgType = "location";
$contentStr = "您发送的位置已被接收！";
textMessageHandle ( $fromUsername, $toUsername, $time, $msgType, $contentStr );
} else {
echo "服务器没能收到您发送的位置！";
}
break;
// 接收视频信息
case "link" :
if (! empty ( $keyword )) {
// $msgType = "link";
$contentStr = "您发送的链接看起来还真不错！";
textMessageHandle ( $fromUsername, $toUsername, $time, $msgType, $contentStr );
} else {
echo "服务器没能收到您发送的链接！";
}
break;
// 对事件进行侦听
case "event":
switch ($event) {
case "subscribe":
// 发送一些消息！
$msgType = 'text';
$contentStr = "终于等到你！";
textMessageHandle($fromUsername, $toUsername, $time, $msgType, $contentStr);
break;
}
break;
default :
break;
}
} else {
echo "";
exit ();
}
}
private function checkSignature() {
// you must define TOKEN by yourself
if (! defined ( "TOKEN" )) {
throw new Exception ( 'TOKEN is not defined!' );
}
$signature = $_GET ["signature"];
$timestamp = $_GET ["timestamp"];
$nonce = $_GET ["nonce"];
$token = TOKEN;
$tmpArr = array (
$token,
$timestamp,
$nonce
);
// use SORT_STRING rule
sort ( $tmpArr, SORT_STRING );
$tmpStr = implode ( $tmpArr );
$tmpStr = sha1 ( $tmpStr );
if ($tmpStr == $signature) {
return true;
} else {
return false;
}
}
}
/**
* 定义为心中想难关的六个接口的数据发送格式模板
*/
function textMessageHandle($fromUsername, $toUsername, $time, $msgType, $contentStr) {
$textTpl = "
%s
0
";
$resultStr = sprintf ( $textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr );
echo $resultStr;
}
function imageMessageHandle($fromUsername, $toUsername, $time, $msgType, $contentStr) {
$imageTpl = "
%s
1234567890123456
";
$resultStr = sprintf ( $textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr );
echo $resultStr;
}
function musicMessageHandle($fromUsername, $toUsername, $time, $msgType, $musictitle, $musicDescription, $musicurl, $hqmusicurl) {
$musicTpl = "
%s
";
$resultStr = sprintf($musicTpl, $fromUsername, $toUsername, $time, $msgType, $musictitle, $musicDescription, $musicurl, $hqmusicurl);
echo $resultStr;
}
/**
* 图灵 机器人接口
*
* 使用curl来进行浏览器模拟并抓取数据
*/
function turing($requestStr) {
/* // 图灵机器人接口
$url = "http://www.tuling123.com/openapi/api";
// 用于POST请求的数据
$data = array(
"key"=>"您在图灵机器人官网上申请的key",
"info"=>$requestStr
);
// 构造curl下载器
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
$requestStr = curl_exec($ch);
curl_close($ch);
return responseStr; */
$url = "http://api.qingyunke.com/api.php?key=free&appid=0&msg=".$requestStr;
$result = file_get_contents($url);
$result = json_decode($result, true);
return $result['content'];
}
?>总结
最后来回顾一下，本次试验用到了哪些知识点。
PHP的面向对象方法编程简单实现。
接口处理的两种方式
微信公众号后台私服的接入，处理，反馈。
前后端的交互，以及聊天机器人的应用。
其实，这些代码跟我一开始的设想还是差别挺大的，原本是想实现一个“遥控器”，晚上想睡觉之前，用微信发一条Detailed explanation of steps to develop WeChat remote control server with PHP“打开电热毯”，半个小时后，电视看完了，去睡觉的时候发现被窝很暖和，是的，只要加上点硬件，这很容易实现啦再者冰箱了，电视了统统可以完成，那样估计就诊的是“智能家居”了吧。
相信看了本文案例你已经掌握了方法，更多精彩请关注php中文网其它相关文章！
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