Wordpress获得单个帖子ID

Question

I'm using a theme template and when i try to get post ID it returns the ID of the template not the ID of the actual single post.

the template ID is: 215 the post ID is: 1911 the following code will only output 215

function metavalue() {
                    global $post;
                    $meta = get_post_meta($post->ID, 'product_url', true);
                    return $meta;

                }
                add_shortcode('url_short', 'metavalue');

get_the_ID(); the_id(); $post->ID; will also output 215. i need a way to get the actual single post ID so i can get the custom field value from 'product_url'.

Answer 1

I've contacted support with the theme authors on this topic as well but for the time being i've found a way to work around it.

function metavalue() {
global $wp;
$url = home_url( $wp->request );
$correct_post_id = url_to_postid( $url ); 
$meta = get_post_meta($correct_post_id, 'product_url', true);
return $meta;
}
                add_shortcode('url_short', 'metavalue');