微信开发代码

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<?php
	//封装成一个微信接口类

	class WeixinApi
	{
		private $appid;
		private $appsecret; 

		//构造方法 初始化赋值
		public function __construct($appid="",$appsecret="")
		{
			$this->appid = $appid;
			$this->appsecret = $appsecret;
		}

		//验证服务器地址有效性
		public function valid()
		{
			if($this->checkSignature())
			{
				$echostr = $_GET['echostr'];//随机的字符串
				return $echostr;
			}
			else
			{
				return "Error";
			}
		}

		//检查签名
		private function checkSignature()
		{
			//一、接收微信服务器GET方式提交过来的4个参数数据

			$signature = $_GET['signature'];//微信加密签名

			$timestamp = $_GET['timestamp'];//时间戳

			$nonce = $_GET['nonce'];//随机数

			//二、加密/校验过程
			// 1. 将token、timestamp、nonce三个参数进行字典序排序；
			// bool sort  ( array &$array  [, int $sort_flags  = SORT_REGULAR  ] ) 对数组排序 
			
			$tmpArr = array(TOKEN,$timestamp,$nonce);//将上面三个参数放到一个数组里面
			sort($tmpArr,SORT_STRING);

			// 2. 将三个参数字符串拼接成一个字符串进行sha1加密；
			$tmpStr = implode($tmpArr); //将数组转化成字符串

			$signatureStr = sha1($tmpStr);

			// 3. 开发者获得加密后的字符串与signature对比。
			if($signatureStr == $signature)
			{
				return true;
			}
			else
			{
				return false;
			}
		}

		//响应消息
		public function responseMsg()
		{
			//接收微信服务器发送POST请求到开发者服务器，携带的XML数据包
			$postData = $GLOBALS['HTTP_RAW_POST_DATA'];

			//处理xml数据包
			$xmlObj = simplexml_load_string($postData,"SimpleXMLElement",LIBXML_NOCDATA);

			if(!$xmlObj)
			{
				echo "";
				exit;
			}

			//获取接收消息中的参数内容
			$toUserName = $xmlObj->ToUserName;//开发者微信号
			$fromUserName = $xmlObj->FromUserName;//发送方的微信号（openid）
			$msgType  = $xmlObj->MsgType;//消息类型
			switch ($msgType) {
				//接收文本消息
				case 'text':
					//获取文本消息的关键字
					$keyword = $this->receiveText($xmlObj);	
					//进行关键字回复
					switch($keyword)
					{
						case "w001":
						case "W001":
							return $this->replyText($xmlObj,"Hi~你好");
						 	break;
						case "w002":
						case "W002":
							return $this->replyText($xmlObj,"Hi~尴尬了");
							break;
						case "笑话":
							$key = "dee9ebc68fd5a61f67286063932afe56";
							return $this->replyNews($xmlObj,$this->joke_text($key));
							break;
						default:
							$key = "dee9ebc68fd5a61f67286063932afe56";
							return $this->replyNews($xmlObj,$this->joke_text($key));
							break;
					}		
					break;
				//接收图片消息
				case 'image':
					return $this->receiveImage($xmlObj);
					break;
				//接收事件推送
				case 'event':
					return $this->receiveEvent($xmlObj);
					break;
			}			
		}

		//接收事件推送
		public function receiveEvent($obj)
		{
			//接收事件类型
			$event = $obj->Event;
			switch ($event)
			{
				//关注事件
				case 'subscribe':
					//下发欢迎消息
					$newsArr = array(
									array(
										"Title"=>"做有价值的头条资讯！",
										"Description"=>"把握价值头条资讯，日常更加有谈资呢！",
										"PicUrl"=>"http://jober.applinzi.com/news/img/news.png",
										"Url"=>"http://jober.applinzi.com/news/index.php"
									)								
								);
					//回复图文消息
					return $this->replyNews($obj,$newsArr);	
					break;
				//取消关注事件
				case 'unsubscribe':
					//账号的解绑操作等等
					break;
				//自定义菜单推送CLICK事件
				case 'CLICK':
					$eventKey = $obj->EventKey;//获取事件KEY值，与自定义菜单接口中KEY值对应
					switch ($eventKey) 
					{
						case 'old':
	
							$weixinArr = $this->history("da675ebc6a0d72920dca3f676122a693");
							$weixinArr = array_slice($weixinArr, 0,5);
							$newsArr = array();

							foreach ($weixinArr as $item) 
							{
								$newsArr = array(array(
													"Title" => $item['Description'],
													"Description" => $item['Title'],
													"PicUrl" => "http://1.jober.applinzi.com/news/img/2.jpg",
													"Url" => "http://www.todayonhistory.com/"											 		
												));
							}
							return $this->replyNews($obj,$newsArr);
							break;
					}
				break;
			}
		}

		//接收文本消息
		public function receiveText($obj)
		{
			$content = trim($obj->Content);//文本消息的内容
			return $content;
		}

		//接收图片消息
		public function receiveImage($obj)
		{
			$picUrl = $obj->PicUrl;//图片的链接
			$mediaId = $obj->MediaId;//图片消息媒体id
			return $this->replyImage($obj,$mediaId);
		}

		//回复图片消息
		public function replyImage($obj,$mediaId)
		{
			$replyXml = "<xml>
							<ToUserName><![CDATA[%s]]></ToUserName>
							<FromUserName><![CDATA[%s]]></FromUserName>
							<CreateTime>%s</CreateTime>
							<MsgType><![CDATA[image]]></MsgType>
							<Image>
								<MediaId><![CDATA[%s]]></MediaId>
							</Image>
						</xml>";
			return sprintf($replyXml,$obj->FromUserName,$obj->ToUserName,time(),$mediaId);
					
		}

		//回复文本消息
		public function replyText($obj,$content)
		{
			$replyXml = "<xml>
							<ToUserName><![CDATA[%s]]></ToUserName>
							<FromUserName><![CDATA[%s]]></FromUserName>
							<CreateTime>%s</CreateTime>
							<MsgType><![CDATA[text]]></MsgType>
							<Content><![CDATA[%s]]></Content>
						</xml>";
			return sprintf($replyXml,$obj->FromUserName,$obj->ToUserName,time(),$content);
		}
		
		//回复图文消息
		public function replyNews($obj,$newsArr)
		{
			//判断是否为数组类型
			if(!is_array($newsArr))
			{
				return;
			}
			// 判断数组是否为空数组
			if(!$newsArr)
			{
				return;
			}
			$itemStr = "";
			//定义item模板
			$itemXml = "<item>
							<Title><![CDATA[%s]]></Title> 
							<Description><![CDATA[%s]]></Description>
							<PicUrl><![CDATA[%s]]></PicUrl>
							<Url><![CDATA[%s]]></Url>
						</item>";
			foreach($newsArr as $item)
			{
				$itemStr .= sprintf($itemXml,$item['Title'],$item['Description'],$item['PicUrl'],$item['Url']);
			}
			$replyXml = "<xml>
							<ToUserName><![CDATA[%s]]></ToUserName>
							<FromUserName><![CDATA[%s]]></FromUserName>
							<CreateTime>%s</CreateTime>
							<MsgType><![CDATA[news]]></MsgType>
							<ArticleCount>".count($newsArr)."</ArticleCount>
							<Articles>".$itemStr."</Articles>
						</xml>";	
			return sprintf($replyXml,$obj->FromUserName,$obj->ToUserName,time());			
		}

		//封装https请求（GET和POST）
	
		protected function https_request($url,$data=null)
		{
			//1、初始化curl
			$ch = curl_init();

			//2、设置传输选项
			curl_setopt($ch, CURLOPT_URL, $url);//请求的url地址
			curl_setopt($ch,CURLOPT_RETURNTRANSFER,1);//将请求的结果以文件流的形式返回
			
			if(!empty($data))
			{
				curl_setopt($ch,CURLOPT_POST,1);//请求POST方式
				curl_setopt($ch,CURLOPT_POSTFIELDS,$data);//POST提交的内容
			}

			//3、执行请求并处理结果
			$outopt = curl_exec($ch);

			//把json数据转化成数组
			$outoptArr = json_decode($outopt,TRUE);

			//4、关闭curl
			curl_close($ch);

			//如果返回的结果$outopt是json数据，则需要判断一下
			if(is_array($outoptArr))
			{	
				return $outoptArr;
			}
			else
			{
				return $outopt;
			}			
		}

		public function juhe_weixin($key,$type)
		{
			$url ="http://v.juhe.cn/toutiao/index?type={$type}&key={$key}";
			$result = $this->https_request($url);
			if($result['error_code'] == 0)
			{
				return $result['result']['data'];
			}
			else
			{
				return array();
			}
		}

		//聚合数据-获取最新趣图
		public function joke_text($key,$pagesize=10)
		{
			$url = "http://japi.juhe.cn/joke/img/text.from?key={$key}&pagesize={$pagesize}";
			$jokeArr = $this->https_request($url);
			$resultArr = $jokeArr['result']['data'];
			// $content = $resultArr[0]['content'];
			// return $this->replyText($xmlObj,$content);
			
			$newsArr = array();
			//判断笑话接口是否获取数据
			if($jokeArr['error_code'] == 0)
			{
				foreach($resultArr as $item)
				{
					$newsArr[] = array(
								"Title"=>$item['content'],
								"Description"=>$item['updatetime'],
								"PicUrl"=>$item['url'],
								"Url"=>$item['url']
							);
				}				
			}
			return $newsArr;
		}


		//聚合数据-获取历史上的今天
			
		public function history($key)
		{
			$m = idate('m');
  			$d = idate('d');
			$day = "{$m}/{$d}";
		
			$url = "http://v.juhe.cn/todayOnhistory/queryEvent.php?key={$key}&date={$day}";
			$historyArr = $this->https_request($url);
			$resultArr = $historyArr['result'];
			// $content = $resultArr['title'];
			// return $this->replyText($xmlObj,$content);
			
			$newsArr = array();
			//判断接口是否获取数据
			if($jokeArr['error_code'] == 0)
			{
				foreach($resultArr as $item)
				{
					$newsArr[] = array(
								"Title"=>$item['title'],
								"Description"=>$item['date'],
								"PicUrl"=>"",
								"Url"=>""
							);
				}				
			}
			return $newsArr;
		}

		public function fund($key)
		{

			$url = "http://japi.juhe.cn/jingzhi/query.from?key={$key}";
			$fundArr = $this->https_request($url);
			$resultArr = $fundArr['result'];
			// $content = $resultArr['title'];
			// return $this->replyText($xmlObj,$content);
			
			$newsArr = array();
			//判断接口是否获取数据
			if($jokeArr['error_code'] == 0)
			{
				foreach($resultArr as $item)
				{
					$newsArr[] = array(
								"Title"=>$item['day'],
								"Description"=>$item['title'],
								"PicUrl"=>"",
								"Url"=>"http://www.baidu.com"
							);
				}				
			}
			return $newsArr;
		}

		/**
			*获取基础支持里面的接口调用凭证access_token并缓存access_token
			*@return access_token string 接口凭证
		**/
		public function getAccessToken()
		{
			//获取memcache缓存的access_token
			$access_token = $this->_memcache_get("access_token");
			//如果缓存的access_token失效
			if(!$access_token)
			{	
				//如果失效调用获取接口凭证来获取access_token
				$url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid={$this->appid}&secret={$this->appsecret}";
				$outoptArr = $this->https_request($url);
				if(!isset($outoptArr['errcode']))
				{
					//memcache缓存access_token
					$this->_memcache_set("access_token",$outoptArr['access_token'],7000);
					return $outoptArr['access_token'];
				}
			}	
			return $access_token;
		}

		//初始化memcache
		private function _memcache_init()
		{
			$mmc = new Memcache;
			$ret = $mmc -> connect();
			if ($ret == false) 
			{
			    return;
			} 
			return $mmc;
		}

		//设置memcache
		private function _memcache_set($key,$value,$time=0)
		{
			$mmc = $this->_memcache_init();
			$mmc -> set($key,$value,0,$time);
		}

		//获取memcahce
		private function _memcache_get($key)
		{
			$mmc = $this->_memcache_init();	
			return $mmc -> get($key);	
		}

		//自定义菜单创建

		public function menu_create($data)
		{
			$access_token = $this->getAccessToken();
			//自定义菜单创建接口地址
			$url = "https://api.weixin.qq.com/cgi-bin/menu/create?access_token={$access_token}";
			return $this->https_request($url,$data);
		}

		//自定义菜单删除
		public function menu_delete()
		{
			$access_token = $this->getAccessToken();
			$url = "https://api.weixin.qq.com/cgi-bin/menu/delete?access_token={$access_token}";
			return $this->https_request($url);
		}
	}
?>