How can i get images from RSS feed in wordpress?

       $ch = curl_in开发者_如何学Goit("http://runap.app.com/feed");
       curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
       curl_setopt($ch, CURLOPT_HEADER, 0);
       $data = curl_exec($ch);
       curl_close($ch);
       $doc = new SimpleXmlElement($data, LIBXML_NOCDATA);

i am using above coding in my site for getting rss feed from http://runap.app.com/feed. for the above i am getting only recent posts title,description and categories.i can't get the post's images?...how can i get those images?..

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Since the images do not seem to be in the RSS feed, you should do it in two steps:

1. Load the RSS feed and extract all page links from it
2. Fetch each page link and extract the image URLs from there

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Add following code at the bottom of your child theme’s functions.php file. It is recommended to customize this using a child theme.

function featuredtoRSS($content) {
    global $post;
    if (has_post_thumbnail($post - > ID)) {
        $content = ''.get_the_post_thumbnail($post - > ID, 'thumbnail', array('style' => 'float:left; margin:0 15px 15px 0;')).
        ''.$content;
    }
    return $content;
}

add_filter('the_excerpt_rss', 'featuredtoRSS');
add_filter('the_content_feed', 'featuredtoRSS');

Once you did that blog post images will be available in your RSS feed.