private function weather($n){ include("weather_cityId.php"); $c_name=$weather_cityId[$n]; if(!empty($c_name)){ $json=file_get_contents("http://m.weather.com.cn/data/".$c_name.".html"); return json_decode($json); } else { return null; } }
这里include 了一个城市对应关系文件 weather_cityId.php,格式如下:
<?php $weather_cityId = array("北京"=>"101010100","上海"=>"101020100","苏州"=>"101190401"); ?>
根据传入的城市名,得到城市代码,如果不为空,则调用中国天气网的API进行查询,返回json格式的数据,然后进行解析并返回数据,如果为空,则返回null值。
五、组织回复消息形式
判断返回数据是否为空,若为空,则 $contentStr = "抱歉,没有查到\"".$str_key."\"的天气信息!";
若返回数据不为空,则:
$contentStr = "【".$data->weatherinfo->city."天气预报】\n".$data->weatherinfo->date_y." ".$data->weatherinfo->fchh."时发布"."\n\n实时天气\n".$data->weatherinfo->weather1." ".$data->weatherinfo->temp1." ".$data->weatherinfo->wind1."\n\n温馨提示:".$data->weatherinfo->index_d."\n\n明天\n".$data->weatherinfo->weather2." ".$data->weatherinfo->temp2." ".$data->weatherinfo->wind2."\n\n后天\n".$data->weatherinfo->weather3." ".$data->weatherinfo->temp3." ".$data->weatherinfo->wind3;
说明:
$data->weatherinfo->city //获取城市名,这里为苏州
$data->weatherinfo->date_y //获取日期,这里为2013年7月9日
$data->weatherinfo->fchh //数据发布时间
$data->weatherinfo->weather1 //实时天气
$data->weatherinfo->temp1 //实时温度
$data->weatherinfo->wind1 //实时风向和风速
$data->weatherinfo->index_d //穿衣指数
weather2, temp2, wind2 分别代表了明天的天气,温度和风向风速,其他的以此类推。
\n //表示换行
六、测试
七、完整代码
<?php /** * wechat php test */ //define your token define("TOKEN", "zhuojin"); $wechatObj = new wechatCallbackapiTest(); $wechatObj->responseMsg(); //$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)){ $postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA); $RX_TYPE = trim($postObj->MsgType); switch($RX_TYPE) { case "text": $resultStr = $this->handleText($postObj); break; case "event": $resultStr = $this->handleEvent($postObj); break; default: $resultStr = "Unknow msg type: ".$RX_TYPE; break; } echo $resultStr; }else { echo ""; exit; } } public function handleText($postObj) { $fromUsername = $postObj->FromUserName; $toUsername = $postObj->ToUserName; $keyword = trim($postObj->Content); $time = time(); $textTpl = "<xml> <ToUserName><![CDATA[%s]]></ToUserName> <FromUserName><![CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><![CDATA[%s]]></MsgType> <Content><![CDATA[%s]]></Content> <FuncFlag>0</FuncFlag> </xml>"; if(!empty( $keyword )) { $msgType = "text"; //天气 $str = mb_substr($keyword,-2,2,"UTF-8"); $str_key = mb_substr($keyword,0,-2,"UTF-8"); if($str == '天气' && !empty($str_key)){ $data = $this->weather($str_key); if(empty($data->weatherinfo)){ $contentStr = "抱歉,没有查到\"".$str_key."\"的天气信息!"; } else { $contentStr = "【".$data->weatherinfo->city."天气预报】\n".$data->weatherinfo->date_y." ".$data->weatherinfo->fchh."时发布"."\n\n实时天气\n".$data->weatherinfo->weather1." ".$data->weatherinfo->temp1." ".$data->weatherinfo->wind1."\n\n温馨提示:".$data->weatherinfo->index_d."\n\n明天\n".$data->weatherinfo->weather2." ".$data->weatherinfo->temp2." ".$data->weatherinfo->wind2."\n\n后天\n".$data->weatherinfo->weather3." ".$data->weatherinfo->temp3." ".$data->weatherinfo->wind3; } } else { $contentStr = "感谢您关注【卓锦苏州】"."\n"."微信号:zhuojinsz"."\n"."卓越锦绣,名城苏州,我们为您提供苏州本地生活指南,苏州相关信息查询,做最好的苏州微信平台。"."\n"."目前平台功能如下:"."\n"."【1】 查天气,如输入:苏州天气"."\n"."【2】 查公交,如输入:苏州公交178"."\n"."【3】 翻译,如输入:翻译I love you"."\n"."【4】 苏州信息查询,如输入:苏州观前街"."\n"."更多内容,敬请期待..."; } $resultStr = sprintf($textTpl, $fromUsername, $toUsername, $time, $msgType, $contentStr); echo $resultStr; }else{ echo "Input something..."; } } public function handleEvent($object) { $contentStr = ""; switch ($object->Event) { case "subscribe": $contentStr = "感谢您关注【卓锦苏州】"."\n"."微信号:zhuojinsz"."\n"."卓越锦绣,名城苏州,我们为您提供苏州本地生活指南,苏州相关信息查询,做最好的苏州微信平台。"."\n"."目前平台功能如下:"."\n"."【1】 查天气,如输入:苏州天气"."\n"."【2】 查公交,如输入:苏州公交178"."\n"."【3】 翻译,如输入:翻译I love you"."\n"."【4】 苏州信息查询,如输入:苏州观前街"."\n"."更多内容,敬请期待..."; break; default : $contentStr = "Unknow Event: ".$object->Event; break; } $resultStr = $this->responseText($object, $contentStr); return $resultStr; } public function responseText($object, $content, $flag=0) { $textTpl = "<xml> <ToUserName><![CDATA[%s]]></ToUserName> <FromUserName><![CDATA[%s]]></FromUserName> <CreateTime>%s</CreateTime> <MsgType><![CDATA[text]]></MsgType> <Content><![CDATA[%s]]></Content> <FuncFlag>%d</FuncFlag> </xml>"; $resultStr = sprintf($textTpl, $object->FromUserName, $object->ToUserName, time(), $content, $flag); return $resultStr; } private function weather($n){ include("weather_cityId.php"); $c_name=$weather_cityId[$n]; if(!empty($c_name)){ $json=file_get_contents("http://m.weather.com.cn/data/".$c_name.".html"); return json_decode($json); } else { return null; } } private 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; } } } ?>