Question

Having some trouble selecting some nodes in the rss feed for twitter’s search

the rss url is here

http://search.twitter.com/search.rss?q=twitfile

each item looks like this

<item>
  <title>RT @TwittBoy: TwitFile - Comparte tus archivos en Twitter (hasta 200Mb) http://bit.ly/xYNsM</title>
  <link>http://twitter.com/MarielaCelita/statuses/5990165590</link>
  <description>RT &lt;a href=&quot;http://twitter.com/TwittBoy&quot;&gt;@TwittBoy&lt;/a&gt;: &lt;b&gt;TwitFile&lt;/b&gt; - Comparte tus archivos en Twitter (hasta 200Mb) &lt;a href=&quot;http://bit.ly/xYNsM&quot;&gt;http://bit.ly/xYNsM&lt;/a&gt;</description>
  <pubDate>Mon, 23 Nov 2009 22:45:39 +0000</pubDate>
  <guid>http://twitter.com/MarielaCelita/statuses/5990165590</guid>
  <author>[e-mail] (M.Celita Lijer&#243;n)</author>
  <media:content type="image/jpg" width="48" height="48" url="http://a3.twimg.com/profile_images/537676869/orkut_normal.jpg"/>
  <google:image_link>http://a3.twimg.com/profile_images/537676869/orkut_normal.jpg</google:image_link>
</item>

My php is below

  foreach ($twitter_xml->channel->item as $key) {
$screenname = $key->{"author"};
$date = $key->{"pubDate"};
$profimg = $key->{"google:image_link"};
$link = $key->{"link"};
$title = $key->{"title"};
echo"
                        <li>
                        <a href=$link><img width=48 height=48 src=\"$profimg\"></a>
                        <h5><a href=$link>$author</a></h5>
                        <p class=info><a href=$link>$title</a></p>
                        </li>
";

Problem is nothing is being echoed, i mean from the rss feed, if there are 20 results, its looping 20 times, just no data

Answer 1

1. In the code, $screenname is assigned a value but you are echoing $author.
2. To get elements within namespaces like google:image_link ,you will have to do this:

$g = $key->children("http://base.google.com/ns/1.0");
$profimg = $g->{"image_link"};

If you are wondering where did I get "http://base.google.com/ns/1.0" from, the namespace is mentioned in the second line of the rss feed.

$url="http://search.twitter.com/search.rss?q=twitfile";
$twitter_xml = simplexml_load_file($url); 

foreach ($twitter_xml->channel->item as $key) {
    $author = $key->{"author"};
    $date = $key->{"pubDate"};
    $link = $key->{"link"};
    $title = $key->{"title"};
    $g = $key->children("http://base.google.com/ns/1.0"); 
    $profimg = $g->{"image_link"};
    echo"
                            <li>
                            <a href=$link><img width=48 height=48 src=\"$profimg\"></a>
                            <h5><a href=$link>$author</a></h5>
                            <p class=info><a href=$link>$title</a></p>
                            </li>
    ";
    $xml = $twitter_xml;
}

This code works.