如何使用导航菜单项 Headers 而不是页面 Headers 创建面包屑使用自定义代码而不使用wordpress中的插件 .
将此代码放在functions.php文件中 .
function the_breadcrumb() { global $post; echo '<ul id="breadcrumbs">'; if (!is_home()) { echo '<li><a href="'; echo get_option('home'); echo '">'; echo 'Home'; echo '</a></li><li class="separator"> / </li>'; if (is_category() || is_single()) { echo '<li>'; the_category(' </li><li class="separator"> / </li><li> '); if (is_single()) { echo '</li><li class="separator"> / </li><li>'; the_title(); echo '</li>'; } } elseif (is_page()) { if($post->post_parent){ $anc = get_post_ancestors( $post->ID ); $title = get_the_title(); foreach ( $anc as $ancestor ) { $output = '<li><a href="'.get_permalink($ancestor).'" title="'.get_the_title($ancestor).'">'.get_the_title($ancestor).'</a></li> <li class="separator">/</li>'; } echo $output; echo '<strong title="'.$title.'"> '.$title.'</strong>'; } else { echo '<li><strong> '.get_the_title().'</strong></li>'; } } } elseif (is_tag()) {single_tag_title();} elseif (is_day()) {echo"<li>Archive for "; the_time('F jS, Y'); echo'</li>';} elseif (is_month()) {echo"<li>Archive for "; the_time('F, Y'); echo'</li>';} elseif (is_year()) {echo"<li>Archive for "; the_time('Y'); echo'</li>';} elseif (is_author()) {echo"<li>Author Archive"; echo'</li>';} elseif (isset($_GET['paged']) && !empty($_GET['paged'])) {echo "<li>Blog Archives"; echo'</li>';} elseif (is_search()) {echo"<li>Search Results"; echo'</li>';} echo '</ul>'; }
在想要显示面包屑的任何地方添加 <?php the_breadcrumb(); ?> . 请享用 .
<?php the_breadcrumb(); ?>
您可以为这些页面使用自定义字段，并在面包屑代码中获取该自定义字段 . 像这样：
<div class="breadcrumb"> <?php if(is_home()) { ?> <a href="<?php echo site_url();?>">Home</a> <?php } else { ?> <a href="<?php echo site_url();?>">Home</a>-><a href="<?php echo get_permalink(get_the_ID());?>"><?php echo $page_brdcrmb = get_post_meta(get_the_ID(), 'custom', true); ?> </a> <?php } ?> </div>
如果您编写自己的主题，这是一个放在 functions.php 中的示例，并在模板中添加此代码 <?php my_breadcrumb(); ?> .
/* Return the string menu title of a page @Param : $id integrer page ID @return: string menu page title or page title if not found */ function my_getmenu_title( $id) { $title = get_the_title() ; // in case we don't found it $menu = wp_get_nav_menu_object( 77 ); // Important this is your menu ID, // should be better to find the active // menu to be generic :-( if( $menu ) { $items = wp_get_nav_menu_items( $menu); foreach ( (array) $items as $key => $menu_item ) { if( $menu_item->object_id==$id ) { $title = $menu_item->title; break; } } } return $title; } /* custom breadcrumb */ function my_breadcrumb($title = false) { global $pmc_data; $breadcrumb = ''; if (!is_home()) { if($title == false){ $breadcrumb .= '<a href="'; $breadcrumb .= home_url(); $breadcrumb .= '">'; $breadcrumb .= __('Home', 'mytheme'); $breadcrumb .= "</a> » "; } if (is_single()) { if (is_single()) { $name = ''; if(!get_query_var($pmc_data['port_slug']) && !get_query_var('product')){ $category = get_the_category(); + $category_id = get_cat_ID($category[0]->cat_name); $category_link = get_category_link($category_id); $name = '<a href="'. esc_url( $category_link ).'">'.$category[0]->cat_name .'</a>'; } else{ $taxonomy = 'portfoliocategory'; $entrycategory = get_the_term_list( get_the_ID(), $taxonomy, '', ',', '' ); $catstring = $entrycategory; $catidlist = explode(",", $catstring); $name = $catidlist[0]; } if($title == false){ $breadcrumb .= $name .' » <span>'. get_the_title().'</span>'; } else{ $breadcrumb .= get_the_title(); } } } elseif (is_page()) { // This is where you call a special function to get menu title instead of page $breadcrumb .= '<span>'.my_getmenu_title( get_the_ID()).'</span>'; } elseif(get_query_var('portfoliocategory')){ $term = get_term_by('slug', get_query_var('portfoliocategory'), 'portfoliocategory'); $name = $term->name; $breadcrumb .= '<span>'.$name.'</span>'; } else if(is_tag()){ $tag = get_query_var('tag'); $tag = str_replace('-',' ',$tag); $breadcrumb .= '<span>'.$tag.'</span>'; } else if(is_search()){ $breadcrumb .= __('Search results for ', 'pmc-themes') .'"<span>'.get_search_query().'</span>"'; } else if(is_category()){ $cat = get_query_var('cat'); $cat = get_category($cat); $breadcrumb .= '<span>'.$cat->name.'</span>'; } else if(is_archive()){ $breadcrumb .= '<span>'.__('Archive','mytheme').'</span>'; } else{ $breadcrumb .= __('Home','mytheme'); } if(function_exists('is_shop')){ if(is_product() || is_product_category() || is_shop()){ $breadcrumb = ''; woocommerce_breadcrumb(); } } } return $breadcrumb ; }
这是自定义breadcrumb功能，不使用wordpress中的任何插件 . 它可以帮助您轻松地在页面上添加痕迹，只需要根据需要添加css .
Function Callback:
<?php custom_breadcrumbs(); ?>
You need to add this function in functions.php
/*========== Breadcrumb ========== */ // Breadcrumbs function 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) && !is_single()) { // 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 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>'; } }
4 回答
将此代码放在functions.php文件中 .
在想要显示面包屑的任何地方添加
<?php the_breadcrumb(); ?>. 请享用 .您可以为这些页面使用自定义字段，并在面包屑代码中获取该自定义字段 . 像这样：
如果您编写自己的主题，这是一个放在 functions.php 中的示例，并在模板中添加此代码 <?php my_breadcrumb(); ?> .
这是自定义breadcrumb功能，不使用wordpress中的任何插件 . 它可以帮助您轻松地在页面上添加痕迹，只需要根据需要添加css .
Function Callback:
You need to add this function in functions.php