Implementation code for php calling yahoo sina api weather forecast

header ( 'Content-Type: text/html; charset = utf-8' );
class weather {
 static $url = 'http://xml.weather.yahoo.com /forecastrss?u=c&w=';
 static $city = 'Beijing'; //Default city Beijing. What should be noted here is that city requires pinyin. I have tried using Chinese and it cannot be called in several regions.
 static $weatherXML = '';
 static $woeid_file = "woeid";
 static $file_path = "data/";

 /**
 * Get remote xml and cache it locally
*/
 static public function getXML($city = null) {

 if ($city != null){
 self::$city = $city;
 }
 self::$weatherXML = self::$file_path . md5(self::$city) . '-weather.xml';
 if (file_exists ( self::$weatherXML )) {
 $fileTime = filemtime ( self::$weatherXML );
 $stater = time () - $fileTime - 60 * 60 * 2;
 if ($stater > 0) {
 return true;
 }
 }
 //Get woeid
 $woeid = self::getWOEID();
 self::$url = self::$url . $woeid[0];
 //Get the weather for the day
 $ XML = self::vget(self::$url);
 //Save the day's weather to a file
 self::cacheXML($XML);

 self::analysisXML($XML);
 }

 static public function analysisXML($simple) {

 $p = xml_parser_create();

 xml_parse_into_struct($p, $simple, $vals, $index);

 xml_parser_free($p);

 //Weather this week
 $weekindex = $index['YWEATHER:FORECAST'];
 $week = array();
 foreach($weekindex as $k=>$v){
 $week[$k] = $vals[$v][' attributes'];
 }
 unset($index);
 unset($vals);
 print_r($week);
 /*

 * day week
 * date date
 * low minimum temperature
 * high maximum temperature
 * test weather status
 * code weather icon
 */
 }
 /*
 * Get the area WOEID code
 */
 static private function getWOEID(){
 static $woeid = array();

 if(isset($woeid[self::$city])) {
 return $woeid[self::$city];
 }

 if (file_exists( self::$file_path . self::$woeid_file )) {
 $woeidSTR = file_get_contents(self::$file_path . self:: $woeid_file);
 $woeid = json_decode($woeidSTR , true);
 if(isset($woeid[self::$city])){
 return $woeid[self::$city];
 }
 }
 $geoPlaces = "http://query.yahooapis.com/v1/public/yql?q=select%20woeid%20from%20geo.places%20where%20text='".self::$city."%20CH'" ;

 $XML = simplexml_load_file( $geoPlaces );

 if(isset($XML->results->place[0])){
 $rs = $woeid[self::$city] = $XML ->results->place[0]->woeid;
 //Save to file
 $woeidSTR = json_encode($woeid);
 file_put_contents(self::$file_path . self::$woeid_file, $woeidSTR) ;
 return $rs;
 }else{
 //If the city woeid cannot be found, the default city will be changed to Beijing
 self::$city = "Beijing";

 return self::getWOEID();
 }
 }
 /**
 * Create xml cache
 * @param $contents The content to be cached
*/
 static private function cacheXML($contents) {
 $contents = str_ireplace ( '', " n", $contents );
 $contents = mb_convert_encoding ( $contents, 'utf-8', 'gbk' );
 file_put_contents ( self::$weatherXML, $contents ) or die ( 'No write permission' );
 }
 /**
 * Simulate the function of getting content
 * @param type $url
 * @return type
*/

 static private function vget($url) {
 $user_agent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.1.4322)";
 $curl = curl_init (); // Start a CURL session
 curl_setopt ( $curl, CURLOPT_URL, $url ); // The address to be accessed
 curl_setopt ( $curl, CURLOPT_SSL_VERIFYPEER, 0 ); // Check the source of the authentication certificate
 curl_setopt ( $curl, CURLOPT_SSL_VERIFYHOST, 1 ); // Check whether the SSL encryption algorithm exists from the certificate
 curl_setopt ( $curl, CURLOPT_USERAGENT, $user_agent ); // Simulate the browser used by the user
 @curl_setopt ( $curl, CURLOPT_FOLLOWLOCATION, 1 ); // Use automatic redirect
 curl_setopt ( $curl, CURLOPT_AUTOREFERER, 1 ); // Automatically set the Referer
 curl_setopt ( $curl, CURLOPT_HTTPGET, 1 ); // Send a regular Post request
 curl_setopt ( $curl, CURLOPT_TIMEOUT , 120 ); // Set timeout limit to prevent endless loops
 curl_setopt ( $curl, CURLOPT_HEADER, 0 ); // Display the content of the returned Header area
 curl_setopt ( $curl, CURLOPT_RETURNTRANSFER, 1 ); // The information obtained is in the file stream Return in the form of
 $tmpInfo = curl_exec ( $curl ); // Perform the operation
 if (curl_errno ( $curl )) {
 curl_close ( $curl ); // Close the CURL session
 die('Errno' . curl_error ( $curl )) ;
 }
 curl_close ( $curl ); // Close CURL session
 return $tmpInfo; // Return data
 }
}
weather::getXML("Changsha");

2，新浪天气 地址：http://php.weather.sina.com.cn 代码：

header ( 'Content-Type: text/html; charset = utf-8' );

class weather {
    static $url = 'http://php.weather.sina.com.cn/xml.php?password=DJOYnieT8234jlsK&day=0&city=';//password是固定值
    static $city = '%B1%B1%BE%A9'; //默认城市北京
    static $weatherXML = '';
    static $file_path   =   "data/";
    /**
 * Get remote xml and cache it locally
*/
    static public function getXML($city = null) {

      if ($city != null){
            $city = mb_convert_encoding ( $city, 'gbk', 'utf-8' );
            self::$city = urlencode($city);
      }
      self::$weatherXML =  self::$file_path .   md5(self::$city) . '-weather.xml';

      if (file_exists( self::$weatherXML )) {
           $fileTime = filemtime ( self::$weatherXML );
           $stater = time () - $fileTime - 60 * 60 * 2;
       if ($stater > 0) {
           return true;
       }
      }

          $contents =   self::vget( self::$url . self::$city );

      self::cacheXML ( $contents );

          self::analysisXML();

    }
    /**
 * Parse xml
*/
    static public function analysisXML() {

                $XML    =   simplexml_load_file(self::$weatherXML );
                print_r($XML);
    }

    /**
 * Create xml cache
 * @param $contents The content to be cached
*/
    static private function cacheXML($contents) {
        $contents = str_ireplace ( '', " n", $contents );
        file_put_contents ( self::$weatherXML, $contents ) or die ( '没有写权限' );
    }
        /**
 * Simulate the function of getting content
 * @param type $url
 * @return type
*/

        static private function vget($url) {
            $user_agent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.1.4322)";
            $curl = curl_init (); // 启动一个CURL会话
            curl_setopt ( $curl, CURLOPT_URL, $url ); // 要访问的地址
            curl_setopt ( $curl, CURLOPT_SSL_VERIFYPEER, 0 ); // 对认证证书来源的检查
            curl_setopt ( $curl, CURLOPT_SSL_VERIFYHOST, 1 ); // 从证书中检查SSL加密算法是否存在
            curl_setopt ( $curl, CURLOPT_USERAGENT, $user_agent ); // 模拟用户使用的浏览器
            @curl_setopt ( $curl, CURLOPT_FOLLOWLOCATION, 1 ); // 使用自动跳转
            curl_setopt ( $curl, CURLOPT_AUTOREFERER, 1 ); // 自动设置Referer
            curl_setopt ( $curl, CURLOPT_HTTPGET, 1 ); // 发送一个常规的Post请求
            curl_setopt ( $curl, CURLOPT_TIMEOUT, 120 ); // 设置超时限制防止死循环
            curl_setopt ( $curl, CURLOPT_HEADER, 0 ); // 显示返回的Header区域内容
            curl_setopt ( $curl, CURLOPT_RETURNTRANSFER, 1 ); // 获取的信息以文件流的形式返回
            $tmpInfo = curl_exec ( $curl ); // 执行操作
            if (curl_errno ( $curl )) {
                curl_close ( $curl ); // 关闭CURL会话
                die('Errno' . curl_error ( $curl )) ;
            }
            curl_close ( $curl ); // 关闭CURL会话
            return $tmpInfo; // 返回数据
        }
}
weather::getXML();