如何从 wordpress 的 RSS 提要中获取图像？

Question

       $ch = curl_init("http://runap.app.com/feed");
       curl_setopt($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?..

Answer 1

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.

Answer 2

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