要在facebook上共享或发帖时获得所需的图像,您必须添加og:image
在您的<head>
标签对于twitter,您必须使用>twitter card
//Adding the Open Graph in the Language Attributes
function add_opengraph_doctype($output)
{
return $output . \' xmlns:og="http://opengraphprotocol.org/schema/" xmlns:fb="http://www.facebook.com/2008/fbml"\';
}
add_filter(\'language_attributes\', \'add_opengraph_doctype\');
//add Open Graph Meta Info
function insert_fb_in_head()
{
global $post;
if (!is_singular()) //if it is not a post or a page
return;
if ($excerpt = $post->post_excerpt)
{
$excerpt = strip_tags($post->post_excerpt);
}
else
{
$excerpt = get_bloginfo(\'description\');
}
echo \'<meta property="fb:app_id" content="YOUR APPID"/>\'; //<-- this is optional
echo \'<meta property="og:title" content="\' . get_the_title() . \'"/>\';
echo \'<meta property="og:description" content="\' . $excerpt . \'"/>\';
echo \'<meta property="og:type" content="article"/>\';
echo \'<meta property="og:url" content="\' . get_permalink() . \'"/>\';
echo \'<meta property="og:site_name" content="\' . get_bloginfo() . \'"/>\';
echo \'<meta name="twitter:title" content="\' . get_the_title() . \'"/>\';
echo \'<meta name="twitter:card" content="summary" />\';
echo \'<meta name="twitter:description" content="\' . $excerpt . \'" />\';
echo \'<meta name="twitter:url" content="\' . get_permalink() . \'"/>\';
if (!has_post_thumbnail($post->ID))
{
//the post does not have featured image, use a default image
$default_image = "http://example.com/image.jpg"; //<--replace this with a default image on your server or an image in your media library
echo \'<meta property="og:image" content="\' . $default_image . \'"/>\';
echo \'<meta name="twitter:image" content="\' . $default_image . \'"/>\';
}
else
{
$thumbnail_src = wp_get_attachment_image_src(get_post_thumbnail_id($post->ID), \'medium\');
echo \'<meta property="og:image" content="\' . esc_attr($thumbnail_src[0]) . \'"/>\';
echo \'<meta name="twitter:image" content="\' . esc_attr($thumbnail_src[0]) . \'"/>\';
}
}
add_action(\'wp_head\', \'insert_fb_in_head\', 5);
代码进入功能。活动子主题(或主题)的php文件。或者在任何插件php文件中
请注意:此代码适用于Facebook和Twitter
希望这有帮助!