如何使用导航菜单项标题而非使用自定义代码而不使用wordpress中的插件来创建使用导航菜单项标题的痕迹。
答案 0 :(得分：2)
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>';
}
将此<?php the_breadcrumb(); ?>添加到您想要显示面包屑的任何位置。享受。
答案 1 :(得分：0)
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>
答案 2 :(得分：0)
如果您编写自己的主题，这是一个放在 functions.php 中的示例，并将此代码 <?php my_breadcrumb(); ?> 添加到您想要的位置在你的模板中。
/*
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 ;
}
答案 3 :(得分：0)
这是自定义面包屑功能，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。
功能回调：
<?php
custom_breadcrumbs();
?>
您需要在functions.php中添加此功能
/*========== 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>';
}
}