XML : How to get first from each of

I'm parsing a RSS feed to get the raw data and manipulate it.

On a WordPress RSS feed. I can find the title, link, description and publication of a the post by iterating over the SimpleXMLElement. The nodes are located in:

  $title = $xml->channel->item[$i]->title;  $link = $xml->channel->item[$i]->link;  $description = $xml->channel->item[$i]->description;  $pubDate = $xml->channel->item[$i]->pubDate;    

respectively.

The problem is $description had 2 <p>s inside. One one which is useless for me; the second one.

So how do I assign $description to only the first <p> of description?

Getting simply $xml->channel->item[$i]->description->p[0] won't work. It results in an internal server error.