Facebook open graph snippet to set default image
wordpress snippet
Adding this snippet to the functions.php of your wordpress theme will allow you to specify Facebook Open Graph information on your WordPress posts. Allowing you to specify which image should be displayed when sharing your article on Facebook among other things.
Just set your ADMIN_ID by going to http://graph.facebook.com/yourfacebookusername, and modify the URL of your site's logo. Then you can check that Facebook is getting all the correct information by going to https://developers.facebook.com/tools/debugsnippet : PHPcopy
function diww_facebook_image() {
echo '<meta property="fb:admins" content="ADMIN_ID" />';
echo '<meta property="og:title" content="' . get_the_title() . '" />';
echo '<meta property="og:site_name" content="' . get_bloginfo('name') . '" />';
global $post;
if ( is_singular() ) { // only if a single post or page
echo '<meta property="og:type" content="article" />';
echo '<meta property="og:url" content="' . get_permalink() . '" />';
if (has_post_thumbnail( $post->ID )) { // use featured image if there is one
$feat_image = wp_get_attachment_image_src( get_post_thumbnail_id( $post->ID ), 'large' );
echo '<meta property="og:image" content="' . esc_attr( $feat_image[0] ) . '" />';
}else{ // use site logo in case no featured image
echo '<meta property="og:image" content="http://yourdomain.com/logo.png" />';
}
}
if ( is_home() ) { // for homepage only
echo '<meta property="og:type" content="website" />';
echo '<meta property="og:url" content="' . get_bloginfo('url') . '" />';
echo '<meta property="og:image" content="http://yourdomain.com/logo.png" />';
}
}
add_action( 'wp_head', 'diww_facebook_image' );
this months featured snippets
- http://blogsnewsreviews.com/ Astro Gremlin
