php微信开发之百度天气预报


            本文实例为大家分享了php微信百度天气预报的开发代码，供大家参考，具体内容如下

1.登录百度ak申请：http://lbsyun.baidu.com/apiconsole/key





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"]."\n". 

    $weather["weather_data"][$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; 

 } 



3.实现天气消息事件







<?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))?("\n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'])){ //SAE 

   sae_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."\r\n", FILE_APPEND); 

  } 

 } 

 

} 

?> 





以上就是本文的全部内容，希望对大家的学习有所帮助，也希望大家多多支持中文源码网。