在PHP中解析Weatherbug的天氣數據

Question

Greetings，

我試圖從Weatherbug的RSS源中解析實時天氣數據。我之前曾使用simplexml_load_string（）與NOAA的天氣數據，但我無法弄清楚如何輸出我需要從Weatherbug獲得的數據。

這裏是當前條件XML：

<rss version="2.0" xmlns:georss="http://www.georss.org/georss"> 
<channel> 

     <title>Observations from Saint Inigoes, MD - USA</title> 


    <link>http://weather.weatherbug.com/MD/Saint Inigoes-weather.html?ZCode=Z5546&amp;Units=0&amp;stat=KNUI</link> 
    <description>Weatherbug, the owner of the world's largest weather network is now providing an API to it's weather data in the form of RSS. This will enable it's enthusiastic users to build their own applications.</description> 
    <language>en-us</language> 

    <lastBuildDate>Tue, 07 Dec 2010 16:00:00 GMT</lastBuildDate> 
    <ttl>60</ttl> 
    <aws:weather xmlns:aws="http://www.aws.com/aws"><aws:api version="2.0" /><aws:WebURL>http://weather.weatherbug.com/MD/Saint Inigoes-weather.html?ZCode=Z5546&amp;Units=0&amp;stat=KNUI</aws:WebURL><aws:InputLocationURL>http://weather.weatherbug.com/VA/Heathsville-weather.html?ZCode=Z5546&amp;Units=0</aws:InputLocationURL><aws:station requestedID="" id="KNUI" name="Webster Field, Naval Electronic Syste" city="Saint Inigoes" state=" MD" zipcode="20684" country="USA" latitude="38.1488876342773" longitude="-76.4197235107422" /><aws:current-condition icon="http://deskwx.weatherbug.com/images/Forecast/icons/cond007.gif">Sunny</aws:current-condition><aws:temp units="&amp;deg;F">33.1</aws:temp><aws:rain-today units="&quot;">0</aws:rain-today><aws:wind-speed units="mph">14</aws:wind-speed><aws:wind-direction>WNW</aws:wind-direction><aws:gust-speed units="mph">28</aws:gust-speed><aws:gust-direction>WNW</aws:gust-direction></aws:weather> 

    <image> 
    <title>Local Weather from WeatherBug</title> 
    <width>142</width> 
    <height>18</height> 
    <link>http://weather.weatherbug.com/MD/Saint Inigoes-weather.html?ZCode=Z5546&amp;Units=0&amp;stat=KNUI</link> 
    <url>http://www.weatherbug.com/aws/imagesHmPg0604/img_wxbug_logo_whiteBG.gif</url> 

    </image> 

      <item> 

         <title>Live Conditions from Saint Inigoes, MD - USA</title>       

        <link>http://weather.weatherbug.com/MD/Saint Inigoes-weather.html?ZCode=Z5546&amp;Units=0&amp;stat=KNUI</link> 

        <pubDate>Tue, 07 Dec 2010 14:53:00 GMT</pubDate> 
        <description><![CDATA[ 

          <img src="http://deskwx.weatherbug.com/images/Forecast/icons/cond007.gif" border="0" alt="Current Conditions"/>&nbsp;&nbsp;&nbsp; 
        <b>Sunny</b> <br /> 

       <b>Temperature:</b> 33.1 &deg;F&nbsp;&nbsp; 
       <br /> 
       <b>Wind Speed:</b> 14 mph WNW&nbsp;&nbsp; 
      <br /> 
       <b>Gusts:</b> 28 mph WNW &nbsp;&nbsp; 
       <b>Rain Today:</b> 0 &quot; &nbsp;&nbsp; 
       <br /> 
        ]]></description> 
         <georss:point>38.1488876342773 -76.4197235107422</georss:point> 

         <guid isPermaLink="false">Tue, 07 Dec 2010 16:00:36 GMT-Station1</guid> 


       </item> 

</channel> 
    </rss> 

，我最需要的是<item>下<description>的一部分。任何幫助將不勝感激！

Answer 1

試試這個：

$description = (string)$simpleXml->channel->item->description;