为什么我的RSS feed file_get_contents不起作用？

Question

I'm trying to set up a live feed from a blog, but the contents are not displays. Any ideas? The blog is based in WP, I've set a contents curl below to a php file. The php file contains another curl to the physical blog feed.

<?php

try{

            // Get RSS feed
            $blog_feed = @file_get_contents_curl('http://www.coordsport.com/csblogfeed.php');

if ($blog_feed){

            // Convert to traversable XML object
            $blog_posts = new SimpleXMLElement($blog_feed);

            // Set limits and counter
            $list_count = 5;
            $current_item = 0;

            // Loop through each feed item
            foreach ($blog_posts->channel->item as $blog_post)
            {
                // Increment counter and check count
                if (++$current_item > $list_count) break;

                // Force data type for description
                $post_description = (string)$blog_post->description;

                $desc_xml = new SimpleXMLElement('<div>' . $post_description . '</div>');

                // Reset thumbnail
                $thumbnail_src = '';

                if (@$desc_xml->img[0])
                {
                    $thumbnail_src = (string) $desc_xml->img[0]->attributes()->src;
                }

}
else
{
echo 'Error Loading Feed';
}

    }
    catch(Exception $e)
    {
            echo 'Error Loading Feed.<br /><br /><div style="font-size:75%;color:#ccc;">' . htmlspecialchars($e) . '</div>';
    }

?>

The file_get_contents_curl csblogfeed.php contains, the blog is working fine and displays correctly in the below URL.

<?php

echo file_get_contents('http://www.coordsport.com/blog/feed/');

?>