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2.实现天气信息功能

baiduWeather.php 

<?php /*** 使用百度天气预报接口获取城市天气信息案例实现*/ //获取城市天气信息function getWeatherInfo（$cityName）{ if（$cityName == "" || （strstr（$cityName,"+"）））{return "发送城市加天气,例如北京天气"; } //获取到的ak $ak = your ak; //获取到的sk $sk = your sk; //调用接口 $url = "http://api.map.baidu.com/telematics/v3/weather?ak=%s&location=%s&output=%s&sk=%s"; $uri = "/telematics/v3/weather";$location = $cityName; $output = "json"; $querystring_arrays = array（"ak" => $ak,"location" => $location,"output" => $output ）;$querystring = http_build_query（$querystring_arrays）; //生成sn $sn = md5（urlencode（$uri."?".$querystring.$sk））; $targetUrl = sprintf（$url,$ak,urlencode（$location）,$output,$sn）;$ch = curl_init（）; curl_setopt（$ch,CURLOPT_URL,$targetUrl）; curl_setopt（$ch,CURLOPT_RETURNTRANSFER,1）; $result = curl_exec（$ch）; curl_close（$ch）; $result = json_decode（$result,true）;if（$result["error"]！=0）{return $result["status"]; }$curHour = （int）date（"H",time（））; $weather = $result["results"][0]; $weatherArray[]=array（"Title"=>$weather["currentCity"]."天气预报","Description"=>"","PicUrl"=>"","Url"=>""）; for（$i = 0;$i<count（$weather["weather_data"]）;$i++）{$weatherArray[] = array（"Title"=> $weather["weather_data"][$i]["data"]."
". $weather["weather_data"][$i]["weather"]. $weather["weather_data"][$i]["wind"]. $weather["weather_data"][$i]["temperature"], "Description"=>"", "PicUrl"=>（（$curHour>=6）&&（$curHour< 18））?$weather["weather_data"][$i]["dayPictureUrl"]:$weather["weather_data"][$i]["nightPictureUrl"],"URL"=>""）; } return $weatherArray;} 

<?php /*CopyRight 2016 All Rights Reserved */define（"TOKEN", "weixin"）; /*** 百度天气预报案例实现* 实现思路：* 1.申请百度ak、sk* 2.使用百度天气预报接口* 3.实现天气信息功能* 4.实现事件响应功能*/ $wechatObj = new wechatCallbackapiTest（）; if （！isset（$_GET["echostr"]）） {$wechatObj->responseMsg（）; }else{$wechatObj->valid（）; }class wechatCallbackapiTest {//验证签名public function valid（）{ $echoStr = $_GET["echostr"]; if（$this->checkSignature（））{header（"content-type:text"）;echo $echoStr;exit; }} public function checkSignature（）{ $signature = $_GET["signature"]; $timestamp = $_GET["timestamp"]; $nonce = $_GET["nonce"]; $token = TOKEN; $tmpArr = array（$token, $timestamp, $nonce）; sort（$tmpArr）; $tmpStr = implode（$tmpArr）; $tmpStr = sha1（$tmpStr）; if（$tmpStr == $signature） {return true; }else{return false; }} //响应消息public function responseMsg（）{ $postStr = $GLOBALS["HTTP_RAW_POST_DATA"]; if （！empty（$postStr））{$this->logger（"R ".$postStr）;$postObj = simplexml_load_string（$postStr, "SimpleXMLElement", LIBXML_NOCDATA）;$RX_TYPE = trim（$postObj->MsgType）; //消息类型分离switch （$RX_TYPE）{ case "event":$result = $this->receiveEvent（$postObj）;break; case "text":$result = $this->receiveText（$postObj）;break; default:$result = "unknown msg type: ".$RX_TYPE;break;}echo $result; }else {echo "";exit; }} //接收事件消息public function receiveEvent（$object）{ $content = ""; switch （$object->Event） {case "subscribe": $content = "欢迎关注Nicky的公众号 "; $content .= （！empty（$object->EventKey））?（"
来自二维码场景 ".str_replace（"qrscene_","",$object->EventKey））:""; break;case "unsubscribe": $content = "取消关注"; break; } $result = $this->transmitText（$object, $content）; return $result;} //接收文本消息public function receiveText（$object）{ $keyword = trim（$object->Content）;//自动回复模式if （strstr（$keyword, "天气"））{$city = str_replace（"天气","",$keyword）;include（"baiduweather.php"）;$content = getWeatherInfo（$city）; } $result = $this->transmitNews（$object, $content）; return $result;} //回复图文消息public function transmitNews（$object, $newsArray）{ if（！is_array（$newsArray））{return; } $itemTpl = " <item> <Title><！[CDATA[%s]]></Title> <Description><！[CDATA[%s]]></Description> <PicUrl><！[CDATA[%s]]></PicUrl> <Url><！[CDATA[%s]]></Url></item> "; $item_str = ""; foreach （$newsArray as $item）{$item_str .= sprintf（$itemTpl, $item["Title"], $item["Description"], $item["PicUrl"], $item["Url"]）; } $xmlTpl = "<xml> <ToUserName><！[CDATA[%s]]></ToUserName> <FromUserName><！[CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><！[CDATA[news]]></MsgType> <ArticleCount>%s</ArticleCount> <Articles> $item_str</Articles> </xml>";$result = sprintf（$xmlTpl, $object->FromUserName, $object->ToUserName, time（）, count（$newsArray））; return $result;}//日志记录public function logger（$log_content）{ if（isset（$_SERVER["HTTP_APPNAME"]））{ //SAEsae_set_display_errors（false）;sae_debug（$log_content）;sae_set_display_errors（true）; }else if（$_SERVER["REMOTE_ADDR"] ！= "127.0.0.1"）{ //LOCAL$max_size = 10000;$log_filename = "log.xml";if（file_exists（$log_filename） and （abs（filesize（$log_filename）） > $max_size））{unlink（$log_filename）;}file_put_contents（$log_filename, date（"H:i:s"）." ".$log_content."
", FILE_APPEND）; }}} ?> 

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