title: Selecting peculiar XML tags with phpQuery
body: <p><a href="http://code.google.com/p/phpquery/" rel="nofollow noreferrer">phpQuery</a> is a really nice tool which has helped me tremendously in the past parse well-formed XHTML and XML documents, but I have recently run into a problem trying to select elements that have colons in their tagname, such as the following:</p>
  
  <pre><code>&lt;isc:thumb&gt;&lt;![CDATA[http://example.com/foo_thumb.jpg]]&gt;&lt;/isc:thumb&gt;
  </code></pre>
  
  <p>I've tried to use the <code>pq()</code> function to select all of these elements:</p>
  
  <pre><code>foreach ( pq("isc:thumb") as $thumbnail ) {
    print pq( $thumbnail )-&gt;text();
  }
  </code></pre>
  
  <p>Unfortunately this is doing nothing. If I try another element, like a tagname of <code>id</code>, the results pop up as expected.</p>