
学习如何驯服React的useCallback钩子
wp_get_canonical_url ( $post = null )
wp_get_canonical_url: 这个函数检索当前页面的标准URL。它不接受任何参数,并返回一个包含标准URL的字符串。
返回一个文章的标准URL。
当该文章与当前请求的页面相同时,该函数也将处理分页参数。
function wp_get_canonical_url( $post = null ) { $post = get_post( $post ); if ( ! $post ) { return false; } if ( 'publish' !== $post->post_status ) { return false; } $canonical_url = get_permalink( $post ); // If a canonical is being generated for the current page, make sure it has pagination if needed. if ( get_queried_object_id() === $post->ID ) { $page = get_query_var( 'page', 0 ); if ( $page >= 2 ) { if ( ! get_option( 'permalink_structure' ) ) { $canonical_url = add_query_arg( 'page', $page, $canonical_url ); } else { $canonical_url = trailingslashit( $canonical_url ) . user_trailingslashit( $page, 'single_paged' ); } } $cpage = get_query_var( 'cpage', 0 ); if ( $cpage ) { $canonical_url = get_comments_pagenum_link( $cpage ); } } /** * Filters the canonical URL for a post. * * @since 4.6.0 * * @param string $canonical_url The post's canonical URL. * @param WP_Post $post Post object. */ return apply_filters( 'get_canonical_url', $canonical_url, $post ); }