使用PHP调用微信API，使用微信做通知类应用的方法-php手册-php.cn

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使用PHP调用微信API，使用微信做通知类应用的方法

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Jun 06, 2016 pm 07:47 PM

apiphpwuseWeChatmethodusetransfernotify

相比于最常用的短信和邮件的通知方式，微信有着无可比拟的优势：快速、免费，特别适合用在报警通知类应用上。但是微信并没有提供现成的api接口来给好友发送信息，公众平台也只能被动回复。那么如何才能主动发信息呢？答案就在微信网页版。仔细观察微信网页

相比于最常用的短信和邮件的通知方式，微信有着无可比拟的优势：快速、免费，特别适合用在报警通知类应用上。

但是微信并没有提供现成的api接口来给好友发送信息，公众平台也只能被动回复。那么如何才能主动发信息呢？答案就在微信网页版。

仔细观察微信网页版和服务器请求的记录，发现完全就是以oauth授权方式运行，完全不用考虑cookie。据此，分析请求记录，就能模拟网页版登录微信，从而实现主动向用户发送消息的功能。

以下是用到的请求：

1. 获取uuid，从返回的数据中，找到uuid

https://login.weixin.qq.com/jslogin?appid=wx782c26e4c19acffb&redirect_uri=https%3A%2F%2Fwx.qq.com%2Fcgi-bin%2Fmmwebwx-bin%2Fwebwxnewloginpage&fun=new&lang=zh_CN

2. 获取二维码图片，然后使用微信扫描

https://login.weixin.qq.com/qrcode/$this->uuid?t=webwx

3. 获取令牌，轮询，直到从返回的数据中找到window.redirect_uri=xxxx的代码，xxx就是令牌url

https://login.weixin.qq.com/cgi-bin/mmwebwx-bin/login?uuid=$this->uuid&tip=1

4. 访问令牌url，获取sid。从返回的头信息中，分析出Uin,sid和uuid，保存起来

xxxxxx

5. 初始化微信，从返回的数据中读取UserName

$data =array(

"BaseRequest"=>array(

"DeviceID" =>'e538770852445779',

"Sid" =>$this->sid,

"Skey" =>"",

"Uin" =>$this->Uin,

)

);

$this->post_contents('https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxinit',$this->encode($data));

6. 获取Skey

1	`$this->post_contents('https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxsync?sid='` `. urlencode($this->sid),'{"BaseRequest":{"Uin":'.$this->Uin.',"Sid":"'.$this->sid.'"},"SyncKey":{"Count":0,"List":[]}}');`

7. 发送消息，POST方式，

$data =array(

"BaseRequest" =>array(

"Uin"=>$this->Uin,

"Sid"=>$this->sid,

"Skey"=>$this->Skey,

"DeviceID"=>$this->DeviceID,

),

"Msg" =>array(

"FromUserName" =>$this->FromUserName,

"ToUserName" =>$name,

"Type" => 1,

"Content" =>$content,

"ClientMsgId" =>$this->ClientMsgId,

"LocalID" =>$this->ClientMsgId,

),

);

$str =$this->encode($data);

son_decode($this->post_contents('https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxsendmsg?sid=' . urlencode($this->sid) .'&r=' .$this->ClientMsgId,$str), true);

发送消息的经典过程为：

初始化对象，设置Uin,sid,uuid
更新Skey
发送信息

但是微信网页版长时间不登录会失效，所以还需要写个任务去ping

1 2	`$data` `='{"BaseRequest":{"Uin":'.$this->Uin.',"Sid":"'.$this->sid.'"},"SyncKey":{"Count":0,"List":[]}}';` `$ret` `= json_decode($this->post_contents('https://wx.qq.com/cgi-bin/mmwebwx-bin/webwxsync?sid='` `. urlencode($this->sid),$data, 30), true);`

微信的数据都是以json格式传输的，但是他这个json比较特殊，还需要用特别的函数来实现

protected function encode($data){

if(!is_array($data)){

return $this->encode_str($data);

}

$ds =array();

foreach($data as $k =>$v){

$ds [] ="\"$k\":" .$this->encode($v);

}

return '{' . join(',',$ds) .'}';

}

protected function encode_str($str){

if(preg_match('|^\d+$|',$str)){

return $str;

}

return '"' .str_replace('"','\"', i

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