外贸营销
无插件为wordpress主题添加面包屑导航
面包屑导航是一种导航技术,显示从主页到当前查看页面的所有访问过的页面。 所有页面都链接在一起,以便于向后导航。 通常这被放置在网页的顶部附近。 因此,例如,如果您查看此页面的顶部,您将看到导航路径回到主页的导航菜单。
有很多可以为你处理面包屑导航的WordPress插件,但它们并不总是最好的选择,因为它们往往会让事情变得错误并最终变得比它们的价值更麻烦。 以下代码将很快在您的网站上使用面包屑。
特点:下面的代码支持
父级及子级页面
归档
自定文章类型
自定义分类支持
使用方法:只需将以下代码粘贴到主题的functions.php文件中:
// Breadcrumbsfunction custom_breadcrumbs() { // Settings $separator = '>'; $breadcrums_id = 'breadcrumbs'; $breadcrums_class = 'breadcrumbs'; $home_title = 'Homepage'; // If you have any custom post types with custom taxonomies, put the taxonomy name below (e.g. product_cat) $custom_taxonomy = 'product_cat'; // Get the query & post information global $post,$wp_query; // Do not display on the homepage if ( !is_front_page() ) { // Build the breadcrums echo '<ul id="' . $breadcrums_id . '" class="' . $breadcrums_class . '">'; // Home page echo '<li class="item-home"><a class="bread-link bread-home" href="' . get_home_url() . '" title="' . $home_title . '">' . $home_title . '</a></li>'; echo '<li class="separator separator-home"> ' . $separator . ' </li>'; if ( is_archive() && !is_tax() && !is_category() && !is_tag() ) { echo '<li class="item-current item-archive"><strong class="bread-current bread-archive">' . post_type_archive_title($prefix, false) . '</strong></li>'; } else if ( is_archive() && is_tax() && !is_category() && !is_tag() ) { // If post is a custom post type $post_type = get_post_type(); // If it is a custom post type display name and link if($post_type != 'post') { $post_type_object = get_post_type_object($post_type); $post_type_archive = get_post_type_archive_link($post_type); echo '<li class="item-cat item-custom-post-type-' . $post_type . '"><a class="bread-cat bread-custom-post-type-' . $post_type . '" href="' . $post_type_archive . '" title="' . $post_type_object->labels->name . '">' . $post_type_object->labels->name . '</a></li>'; echo '<li class="separator"> ' . $separator . ' </li>'; } $custom_tax_name = get_queried_object()->name; echo '<li class="item-current item-archive"><strong class="bread-current bread-archive">' . $custom_tax_name . '</strong></li>'; } else if ( is_single() ) { // If post is a custom post type $post_type = get_post_type(); // If it is a custom post type display name and link if($post_type != 'post') { $post_type_object = get_post_type_object($post_type); $post_type_archive = get_post_type_archive_link($post_type); echo '<li class="item-cat item-custom-post-type-' . $post_type . '"><a class="bread-cat bread-custom-post-type-' . $post_type . '" href="' . $post_type_archive . '" title="' . $post_type_object->labels->name . '">' . $post_type_object->labels->name . '</a></li>'; echo '<li class="separator"> ' . $separator . ' </li>'; } // Get post category info $category = get_the_category(); if(!empty($category)) { // Get last category post is in $last_category = end(array_values($category)); // Get parent any categories and create array $get_cat_parents = rtrim(get_category_parents($last_category->term_id, true, ','),','); $cat_parents = explode(',',$get_cat_parents); // Loop through parent categories and store in variable $cat_display $cat_display = ''; foreach($cat_parents as $parents) { $cat_display .= '<li class="item-cat">'.$parents.'</li>'; $cat_display .= '<li class="separator"> ' . $separator . ' </li>'; } } // If it's a custom post type within a custom taxonomy $taxonomy_exists = taxonomy_exists($custom_taxonomy); if(empty($last_category) && !empty($custom_taxonomy) && $taxonomy_exists) { $taxonomy_terms = get_the_terms( $post->ID, $custom_taxonomy ); $cat_id = $taxonomy_terms[0]->term_id; $cat_nicename = $taxonomy_terms[0]->slug; $cat_link = get_term_link($taxonomy_terms[0]->term_id, $custom_taxonomy); $cat_name = $taxonomy_terms[0]->name; } // Check if the post is in a category if(!empty($last_category)) { echo $cat_display; echo '<li class="item-current item-' . $post->ID . '"><strong class="bread-current bread-' . $post->ID . '" title="' . get_the_title() . '">' . get_the_title() . '</strong></li>'; // Else if post is in a custom taxonomy } else if(!empty($cat_id)) { echo '<li class="item-cat item-cat-' . $cat_id . ' item-cat-' . $cat_nicename . '"><a class="bread-cat bread-cat-' . $cat_id . ' bread-cat-' . $cat_nicename . '" href="' . $cat_link . '" title="' . $cat_name . '">' . $cat_name . '</a></li>'; echo '<li class="separator"> ' . $separator . ' </li>'; echo '<li class="item-current item-' . $post->ID . '"><strong class="bread-current bread-' . $post->ID . '" title="' . get_the_title() . '">' . get_the_title() . '</strong></li>'; } else { echo '<li class="item-current item-' . $post->ID . '"><strong class="bread-current bread-' . $post->ID . '" title="' . get_the_title() . '">' . get_the_title() . '</strong></li>'; } } else if ( is_category() ) { // Category page echo '<li class="item-current item-cat"><strong class="bread-current bread-cat">' . single_cat_title('', false) . '</strong></li>'; } else if ( is_page() ) { // Standard page if( $post->post_parent ){ // If child page, get parents $anc = get_post_ancestors( $post->ID ); // Get parents in the right order $anc = array_reverse($anc); // Parent page loop if ( !isset( $parents ) ) $parents = null; foreach ( $anc as $ancestor ) { $parents .= '<li class="item-parent item-parent-' . $ancestor . '"><a class="bread-parent bread-parent-' . $ancestor . '" href="' . get_permalink($ancestor) . '" title="' . get_the_title($ancestor) . '">' . get_the_title($ancestor) . '</a></li>'; $parents .= '<li class="separator separator-' . $ancestor . '"> ' . $separator . ' </li>'; } // Display parent pages echo $parents; // Current page echo '<li class="item-current item-' . $post->ID . '"><strong title="' . get_the_title() . '"> ' . get_the_title() . '</strong></li>'; } else { // Just display current page if not parents echo '<li class="item-current item-' . $post->ID . '"><strong class="bread-current bread-' . $post->ID . '"> ' . get_the_title() . '</strong></li>'; } } else if ( is_tag() ) { // Tag page // Get tag information $term_id = get_query_var('tag_id'); $taxonomy = 'post_tag'; $args = 'include=' . $term_id; $terms = get_terms( $taxonomy, $args ); $get_term_id = $terms[0]->term_id; $get_term_slug = $terms[0]->slug; $get_term_name = $terms[0]->name; // Display the tag name echo '<li class="item-current item-tag-' . $get_term_id . ' item-tag-' . $get_term_slug . '"><strong class="bread-current bread-tag-' . $get_term_id . ' bread-tag-' . $get_term_slug . '">' . $get_term_name . '</strong></li>'; } elseif ( is_day() ) { // Day archive // Year link echo '<li class="item-year item-year-' . get_the_time('Y') . '"><a class="bread-year bread-year-' . get_the_time('Y') . '" href="' . get_year_link( get_the_time('Y') ) . '" title="' . get_the_time('Y') . '">' . get_the_time('Y') . ' Archives</a></li>'; echo '<li class="separator separator-' . get_the_time('Y') . '"> ' . $separator . ' </li>'; // Month link echo '<li class="item-month item-month-' . get_the_time('m') . '"><a class="bread-month bread-month-' . get_the_time('m') . '" href="' . get_month_link( get_the_time('Y'), get_the_time('m') ) . '" title="' . get_the_time('M') . '">' . get_the_time('M') . ' Archives</a></li>'; echo '<li class="separator separator-' . get_the_time('m') . '"> ' . $separator . ' </li>'; // Day display echo '<li class="item-current item-' . get_the_time('j') . '"><strong class="bread-current bread-' . get_the_time('j') . '"> ' . get_the_time('jS') . ' ' . get_the_time('M') . ' Archives</strong></li>'; } else if ( is_month() ) { // Month Archive // Year link echo '<li class="item-year item-year-' . get_the_time('Y') . '"><a class="bread-year bread-year-' . get_the_time('Y') . '" href="' . get_year_link( get_the_time('Y') ) . '" title="' . get_the_time('Y') . '">' . get_the_time('Y') . ' Archives</a></li>'; echo '<li class="separator separator-' . get_the_time('Y') . '"> ' . $separator . ' </li>'; // Month display echo '<li class="item-month item-month-' . get_the_time('m') . '"><strong class="bread-month bread-month-' . get_the_time('m') . '" title="' . get_the_time('M') . '">' . get_the_time('M') . ' Archives</strong></li>'; } else if ( is_year() ) { // Display year archive echo '<li class="item-current item-current-' . get_the_time('Y') . '"><strong class="bread-current bread-current-' . get_the_time('Y') . '" title="' . get_the_time('Y') . '">' . get_the_time('Y') . ' Archives</strong></li>'; } else if ( is_author() ) { // Auhor archive // Get the author information global $author; $userdata = get_userdata( $author ); // Display author name echo '<li class="item-current item-current-' . $userdata->user_nicename . '"><strong class="bread-current bread-current-' . $userdata->user_nicename . '" title="' . $userdata->display_name . '">' . 'Author: ' . $userdata->display_name . '</strong></li>'; } else if ( get_query_var('paged') ) { // Paginated archives echo '<li class="item-current item-current-' . get_query_var('paged') . '"><strong class="bread-current bread-current-' . get_query_var('paged') . '" title="Page ' . get_query_var('paged') . '">'.__('Page') . ' ' . get_query_var('paged') . '</strong></li>'; } else if ( is_search() ) { // Search results page echo '<li class="item-current item-current-' . get_search_query() . '"><strong class="bread-current bread-current-' . get_search_query() . '" title="Search results for: ' . get_search_query() . '">Search results for: ' . get_search_query() . '</strong></li>'; } elseif ( is_404() ) { // 404 page echo '<li>' . 'Error 404' . '</li>'; } echo '</ul>'; } }
如果你是一个没有编码经验的初学者,我们建议使用面包屑插件,WordPress SEO有很棒的面包屑功能。 请注意,并非每个WordPress安装或主题都相同,为了使其正常运行,此代码可能需要稍作调整。
有些人在添加此功能后可能会遇到白屏或不良行为。 我们建议任何人通过FTP将其添加到他们的网站,而不是WordPress文件编辑器。 使用此代码需要您自担风险,但如果您对此代码有任何问题,请在评论中告知我们,我们将尽力以任何方式提供帮助。