读取某些元素名称中带有“-"的XML提要 [英] reading a XML feed with '-' in some of the element names

问题描述

我正在尝试读取元素名称中带有-"的xml提要.提要可以在这里找到.

I am trying to read an xml feed that has '-' in the element names. The feed can be found here.

http://forecast.weather .gov/MapClick.php?lat = 42.19774& lon = -121.81797& FcstType = dwml

我是php的新手，所以我很可能会看一些基本的东西.我正在使用SimpleXML读取提要.这是一些我用来解决问题的基本代码.我没有任何问题地读了wordedForecast和min tempature.当我尝试阅读条件图标时，php不起作用(这是我在底部注释掉的部分)

I am new to php, so I am likely over looking something basic. I am using SimpleXML to read the feed. Here is some basic code that I am using to figure out my problem. I read the wordedForecast and min tempature with no problems. When I try to read the conditions-icon the php does not work(it is the part that I commented out at the bottom)

<?php 
$feed_url = 'http://forecast.weather.gov/MapClick.php?lat=42.19774&lon=-121.81797&FcstType=dwml';
$ch = curl_init($feed_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$result = curl_exec($ch);
curl_close($ch);

if (!empty($result))
{
$xml = new SimpleXMLElement($result);
print "<br> Discription\n";
$wordedForecast = $xml->data->parameters->wordedForecast->text;
foreach ($wordedForecast as  $value)
{
    print "<br> $value\n";
}
print "<br> Min Tempature\n";
$Tempature = $xml->data->parameters->temperature->value;
foreach ($Tempature as  $value)
{
    print "<br> $value\n";
}
    print"<br>conditions Icon link\n";
//This is one of the elements that I am stumped on how to read.
/*      $conditions= $xml->data->parameters->conditions-icon->icon-link;
foreach ($conditions as  $value)
{
    print "<br> $value\n";
}
*/  
}
?>

我敢肯定，答案很简单，但是我已经没有足够的想法去解决这个问题了.我对<time-layout>，<probability-of-precipitation>和<weather-conditions>元素有同样的问题.

I am sure the answer to this is simple, but I have run out of ideas on how to go about it. I have the same problem with the <time-layout>,<probability-of-precipitation>, and <weather-conditions> elements.

感谢您提供有关如何使其正常工作的任何答案或想法.

Thanks for any answers or ideas on how to get it working.

推荐答案

尝试$xml->data->parameters->{'conditions-icon'}->{'icon-link'}

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