1 <?php
  2 /**自己写的
　　*/
  3 $wechatObj = new wechatCallbackapiTest();
  4 $wechatObj->valid();
  5 $wechatObj->responseMsg();//响应消息
  6 $wechatObj->set_menu();//自定义菜单
  7 
  8 class wechatCallbackapiTest
  9 {
 10 /** 
 11  * 绑定url、token信息 
 12  */      
 13     public function valid()
 14     {
 15         $echoStr = $_GET["echostr"];
 16 
 17         //valid signature , option
 18         if($this->checkSignature()){
 19             echo $echoStr;
 20             exit;
 21         }
 22     }
 23 
 24 /** 
 25  * 接收消息，并自动发送响应信息 
 26  */ 
 27     public function responseMsg()
 28     {
 29         //get post data, May be due to the different environments
 30         $postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
 31 
 32           //extract post data
 33           //提取post数据  
 34         if (!empty($postStr)){
 35                 
 36                   $postObj = simplexml_load_string($postStr, ‘SimpleXMLElement‘, LIBXML_NOCDATA);
 37                 $fromUsername = $postObj->FromUserName;//发送人 
 38                 $toUsername = $postObj->ToUserName;//接收人 
 39                 $keyword = trim($postObj->Content);//消息内容 
 40                 $time = time();//当前时间做为回复时间 
 41 
 42                 $textTpl = "<xml>
 43                             <ToUserName><![CDATA[%s]]></ToUserName>
 44                             <FromUserName><![CDATA[%s]]></FromUserName>
 45                             <CreateTime>%s</CreateTime>
 46                             <MsgType><![CDATA[%s]]></MsgType>
 47                             <Content><![CDATA[%s]]></Content>
 48                             <FuncFlag>0</FuncFlag>
 49                             </xml>";             
 50                 if(!empty( $keyword ))
 51                 {
 52                       $msgType = "text";
 53                     $contentStr = "lpc";
 54                     $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr);
 55                     echo $resultStr;
 56                 }else{
 57                     echo "Input something...";
 58                 }
 59 
 60         }else {
 61             echo "";
 62             exit;
 63         }
 64     }
 65 
 66 /** 
 67 * 检查签名，确保请求是从微信发过来的 
 68 */          
 69     private function checkSignature()
 70     {
 71         $signature = $_GET["signature"];
 72         $timestamp = $_GET["timestamp"];
 73         $nonce = $_GET["nonce"];    
 74                 
 75         $token = TOKEN;
 76         $tmpArr = array($token, $timestamp, $nonce);
 77         sort($tmpArr);
 78         $tmpStr = implode( $tmpArr );
 79         $tmpStr = sha1( $tmpStr );
 80         
 81         if( $tmpStr == $signature ){
 82             return true;
 83         }else{
 84             return false;
 85         }
 86     }
 87 
 88 /** 
 89  * 自定义菜单
 90  */  
 91     public function set_menu()
 92     {
 93         $access_token = $this->check_token();
 94         
 95         if ($access_token==‘no‘) {
 96             
 97         }else{
 98             $url = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token=$access_token";
 99                 
100             $post_data = ‘ 
101             {
102                      "button":[
103                         {   
104                             "type":"view",
105                             "name":"首页",
106                             "url":"http://www.lpcblog.com/weixin/shop/"
107                         },
108                         { 
109                             "name":"个人中心",
110                             "sub_button":[
111                             {   
112                                 "type":"view",
113                                 "name":"个人信息",
114                                 "url":"http://www.lpcblog.com/weixin/shop/user.html"
115                             },
116                             {   
117                                 "type":"view",
118                                 "name":"个人账户",
119                                 "url":"http://www.lpcblog.com/weixin/shop/myuser.html"
120                             }]
121                         },
122                         {   
123                             "type":"click",
124                             "name":"关于我们",
125                             "key":"V1001_TODAY_MUSIC"
126                         }
127                         ]
128             }‘;
129 
130             //设置菜单也是post传值
131             return json_decode($this->curl($url,$post_data);
132         }    
133     }
134 
135     //判断token值时效方法
136     public function check_token()
137     {
138         if (file_exists(‘token.txt‘)) 
139         {    
140             //判断token值时效,修改时间
141             $mtime=filemtime("token.txt");
142             if((time()-$mtime)<7000){
143                 return $this->read_access_token();
144             }else{
145                 return ‘NO‘;
146             }
147         }else{
148             $this->mem_token();
149             return $this->read_access_token();
150         }            
151     }
152 
153     //curl封装类
154     public function  curl($url,$data=array())
155     {
156         // 初始化curl
157         $ch = curl_init();
158 
159         curl_setopt($ch, CURLOPT_URL, $url);
160         curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
161 
162         // 开启支持https
163         curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
164         curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
165         // post数据
166         curl_setopt($ch, CURLOPT_POST, 1);
167         // post的变量
168         curl_setopt($ch, CURLOPT_POSTFIELDS, $post_data);
169 
170         $output = curl_exec($ch);
171         // 关闭curl
172         curl_close($ch);
173         return $output;
174     }
175 
176     //获取access_token方法
177     public function get_token()
178     {
179         //加载常量文件
180         include(‘define.php‘);
181         //微信获取access_token地址
182         $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".APPID."&secret=".APP_SECRET;
183 
184         //传值方式POST
185         $post_data = array(
186             ‘grant_type‘=>‘client_credential‘,
187             ‘appid‘=>APPID,
188              ‘client_secret‘=>APP_SECRET,
189         );
190         //curl方法模拟提交获取access_token(格式json)
191         $access_token = json_decode($this->curl($url,$post_data);
192         if($access_token[‘access_token‘]){
193             return $access_token;
194         }else{
195             return "获取access_token失败";
196         }
197     }
198 
199     //读取access_token的方法
200     public function read_access_token()
201     {
202         $token = unserialize(file_get_contents(‘token.txt‘));
203         return $token[‘access_token‘];
204     }
205 
206     //存token方法
207     public function mem_token()
208     {
209         //调用获取access_token的方法
210         $access_token = $this->get_token();
211         //序列化返回的access_token
212         $txt =  serialize($access_token);
213         //保存access_token
214         file_put_contents(‘token.txt‘,$txt);
215     }
216 }