This question has two parts.
Part 1. Yesterday I had some code which would echo the entire content of the XML from an RSS feed. Then I deleted it fr
Part 1
This is still not exactly what I wanted, but rather a very tidy and organized way of echoing the xml data:
$url = "http://www.blogger.com/feeds/6552111825067891333/posts/default";
$xml = simplexml_load_file($url);
echo '';
print_r($xml);
Part 2
I had to get firephp running so I could see exactly what elements php was encountering when it reached an entry without a blog title. Ultimately it is an empty array. Therefore, the simple:
if(empty($entry->title))
works perfectly. For string comparison, I found that you can simply cast it as a string. For my purposes, that was unnecessary.