The following is a WordPress breadcrumb navigation code shared by theWordPresstutorial column. I hope it will be helpful to friends who need it!
Reprint and share a piece of WordPress breadcrumb navigation code that supports custom post types and custom categories, but it seems a pity that the parent-child category hierarchy cannot be displayed on the category archive page.
Add the code to the current theme function template functions.php:
/** * WordPress Breadcrumbs */ function tsh_wp_custom_breadcrumbs() { $separator = '/'; $breadcrumbs_id = 'tsh_breadcrumbs'; $breadcrumbs_class = 'tsh_breadcrumbs'; $home_title = esc_html__('Home', 'your-domain'); // Add here you custom post taxonomies $tsh_custom_taxonomy = 'product_cat'; global $post,$wp_query; // Hide from front page if ( !is_front_page() ) { echo ''; // Home echo '- ' . $home_title . '
'; echo '- ' . $separator . '
'; if ( is_archive() && !is_tax() && !is_category() && !is_tag() ) { echo '- ' . post_type_archive_title('', false) . '
'; } else if ( is_archive() && is_tax() && !is_category() && !is_tag() ) { // For Custom post type $post_type = get_post_type(); // Custom post type name and link if($post_type != 'post') { $post_type_object = get_post_type_object($post_type); $post_type_archive = get_post_type_archive_link($post_type); echo '- ' . $post_type_object->labels->name . '
'; echo '- ' . $separator . '
'; } $custom_tax_name = get_queried_object()->name; echo '- ' . $custom_tax_name . '
'; } else if ( is_single() ) { $post_type = get_post_type(); if($post_type != 'post') { $post_type_object = get_post_type_object($post_type); $post_type_archive = get_post_type_archive_link($post_type); echo '- ' . $post_type_object->labels->name . '
'; echo '- ' . $separator . '
'; } // Get post category $category = get_the_category(); if(!empty($category)) { // Last category post is in $last_category = $category[count($category) - 1]; // 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) { $cat_display .= '- '.$parents.'
'; $cat_display .= '- ' . $separator . '
'; } } $taxonomy_exists = taxonomy_exists($tsh_custom_taxonomy); if(empty($last_category) && !empty($tsh_custom_taxonomy) && $taxonomy_exists) { $taxonomy_terms = get_the_terms( $post->ID, $tsh_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, $tsh_custom_taxonomy); $cat_name = $taxonomy_terms[0]->name; } // If the post is in a category if(!empty($last_category)) { echo $cat_display; echo '- ' . get_the_title() . '
'; // Post is in a custom taxonomy } else if(!empty($cat_id)) { echo '- ' . $cat_name . '
'; echo '- ' . $separator . '
'; echo '- ' . get_the_title() . '
'; } else { echo '- ' . get_the_title() . '
'; } } else if ( is_category() ) { // Category page echo '- ' . single_cat_title('', false) . '
'; } else if ( is_page() ) { // Standard page if( $post->post_parent ){ // Get parents $anc = get_post_ancestors( $post->ID ); // Get parents order $anc = array_reverse($anc); // Parent pages if ( !isset( $parents ) ) $parents = null; foreach ( $anc as $ancestor ) { $parents .= '- ' . get_the_title($ancestor) . '
'; $parents .= '- ' . $separator . '
'; } // Render parent pages echo $parents; // Active page echo '- ' . get_the_title() . '
'; } else { // Just display active page if not parents pages echo '- ' . get_the_title() . '
'; } } else if ( is_tag() ) { // Tag page // 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; // Return tag name echo '- ' . $get_term_name . '
'; } elseif ( is_day() ) { // Day archive page // Year link echo '- ' . get_the_time('Y') . ' Archives
'; echo '- ' . $separator . '
'; // Month link echo '- ' . get_the_time('M') . ' Archives
'; echo '- ' . $separator . '
'; // Day display echo '- ' . get_the_time('jS') . ' ' . get_the_time('M') . ' Archives
'; } else if ( is_month() ) { // Month Archive // Year link echo '- ' . get_the_time('Y') . ' Archives
'; echo '- ' . $separator . '
'; // Month display echo '- ' . get_the_time('M') . ' Archives
'; } else if ( is_year() ) { // Display year archive echo '- ' . get_the_time('Y') . ' Archives
'; } else if ( is_author() ) { // Author archive // Get the author information global $author; $userdata = get_userdata( $author ); // Display author name echo '- ' . 'Author: ' . $userdata->display_name . '
'; } else if ( get_query_var('paged') ) { // Paginated archives echo '- '.__('Page') . ' ' . get_query_var('paged') . '
'; } else if ( is_search() ) { // Search results page echo '- Search results for: ' . get_search_query() . '
'; } elseif ( is_404() ) { // 404 page echo '- ' . 'Error 404' . '
'; } echo '
'; } }
Put the calling code in the appropriate location of the theme template, such as header.php:
Matching style :
#tsh_breadcrumbs .separator{ font-size:20px; color:#ccc; font-weight:100; } #tsh_breadcrumbs{ overflow:hidden; text-align: center; list-style:none; margin:11px 0; } #tsh_breadcrumbs li{ margin-right:14px; display:inline-block; vertical-align:middle; }
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