需要有关面包屑列表的帮助，该错误从主题内部的旧“面包屑”生成器中出现。
在我的WordPress网站上，我正在使用Yoast插件来生成面包屑。并且由此产生的面包屑具有正确的结构。
但是主题中有一个旧的Breadcrumb代代码（存在于2个php文件中）。它是使用Data-Vocabulary.org标记而不是Schema.org进行的，实际上我已经用Schema.org替换了已弃用的Data-Vocabulary.org，但是面包屑列表结构实际上是不正确的。
因此，要完全解决错误，我需要从下面的两个PHP中完全删除面包屑生成器。
1。 td_page_generator.php
<?php class td_page_generator {
//this is the global page wrap, it prepares the page for the pagebuilder
static function wrap_start() {
$buffy = '';
$buffy .= '
<div class="container td-page-wrap">
<div class="row">
<div class="span12">
<div class="td-grid-wrap">
<div class="container-fluid">
<div class="row-fluid ">
';
return $buffy;
}
//page builder wrap end
static function wrap_end() {
$buffy = '';
$buffy .= '
</div>
</div>
</div>
</div>
</div>
</div>
';
return $buffy;
}
//wrapping without the last row class
static function wrap_no_row_start() {
$buffy = '';
$buffy .= '
<div class="container td-page-wrap">
<div class="row">
<div class="span12">
<div class="td-grid-wrap">
<div class="container-fluid">
';
return $buffy;
}
//wrapping without the last row class
static function wrap_no_row_end() {
$buffy = '';
$buffy .= '
</div>
</div>
</div>
</div>
</div>
';
return $buffy;
}
//wrapping without the last row class
static function wrap_no_row_with_bg_start() {
$buffy = '';
$buffy .= '
<div class="td-big-slide-background" id="td-full-screen-header-image">
<div class="container">
<div class="row">
<div class="span12">
<div class="td-grid-wrap">
<div class="container-fluid">
';
return $buffy;
}
//wrapping without the last row class
static function wrap_no_row_with_bg_end() {
$buffy = '';
$buffy .= '
</div>
</div>
</div>
</div>
</div>
</div>
';
return $buffy;
}
/**
* get the single breadcrumbs
* @param $post_title
* @return string
*/
static function get_single_breadcrumbs($post_title) {
if (td_util::get_option('tds_breadcrumbs_show') == 'hide') {
return;
}
$category_1_name = '';
$category_1_url = '';
$category_2_name = '';
$category_2_url = '';
$primary_category_id = td_global::get_primary_category_id();
$primary_category_obj = get_category($primary_category_id);
//print_r($primary_category_obj);
if (!empty($primary_category_obj)) {
if (!empty($primary_category_obj->name)) {
$category_1_name = $primary_category_obj->name;
} else {
$category_1_name = '';
}
if (!empty($primary_category_obj->cat_ID)) {
$category_1_url = get_category_link($primary_category_obj->cat_ID);
}
if (!empty($primary_category_obj->parent) and $primary_category_obj->parent != 0) {
$parent_category_obj = get_category($primary_category_obj->parent);
if (!empty($parent_category_obj)) {
$category_2_name = $parent_category_obj->name;
$category_2_url = get_category_link($parent_category_obj->cat_ID);
}
}
}
if (!empty($category_1_name)) {
//parent category (only if we have one and if the theme is set to show it)
if (!empty($category_2_name) and td_util::get_option('tds_breadcrumbs_show_parent') != 'hide' ) {
$breadcrumbs_array [] = array (
'title_attribute' => __td('View all posts in') . ' ' . htmlspecialchars($category_2_name),
'url' => $category_2_url,
'display_name' => $category_2_name
);
}
//child category
$breadcrumbs_array [] = array (
'title_attribute' => __td('View all posts in') . ' ' . htmlspecialchars($category_1_name),
'url' => $category_1_url,
'display_name' => $category_1_name
);
//article title (only if the theme is set to show it)
if (td_util::get_option('tds_breadcrumbs_show_article') != 'hide') {
//child category
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => '',
'display_name' => td_util::excerpt($post_title, 13)
);
}
}
return self::get_breadcrumbs($breadcrumbs_array); //generate the breadcrumbs
}
static function get_author_breadcrumbs($part_cur_auth_obj) {
if (td_util::get_option('tds_breadcrumbs_show') == 'hide') {
return;
}
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => '',
'display_name' => __td('Authors')
);
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => '',
'display_name' => __td('Posts by ') . $part_cur_auth_obj->display_name
);
return self::get_breadcrumbs($breadcrumbs_array);
}
static function get_category_breadcrumbs($primary_category_obj) {
if (td_util::get_option('tds_breadcrumbs_show') == 'hide') {
return;
}
$category_1_name = '';
$category_1_url = '';
$category_2_name = '';
$category_2_url = '';
//$primary_category_id = td_global::get_primary_category_id();
//$primary_category_obj = get_category($primary_category_id);
if (!empty($primary_category_obj)) {
if (!empty($primary_category_obj->name)) {
$category_1_name = $primary_category_obj->name;
} else {
$category_1_name = '';
}
if (!empty($primary_category_obj->cat_ID)) {
$category_1_url = get_category_link($primary_category_obj->cat_ID);
}
if (!empty($primary_category_obj->parent) and $primary_category_obj->parent != 0) {
$parent_category_obj = get_category($primary_category_obj->parent);
if (!empty($parent_category_obj)) {
$category_2_name = $parent_category_obj->name;
$category_2_url = get_category_link($parent_category_obj->cat_ID);
}
}
}
//print_r($primary_category_obj);
if (!empty($category_1_name)) {
//parent category
if (!empty($category_2_name) and td_util::get_option('tds_breadcrumbs_show_parent') != 'hide' ) {
$breadcrumbs_array [] = array (
'title_attribute' => __td('View all posts in') . ' ' . htmlspecialchars($category_2_name),
'url' => $category_2_url,
'display_name' => $category_2_name
);
}
//child category
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => '',
'display_name' => $category_1_name
);
}
return self::get_breadcrumbs($breadcrumbs_array); //generate the breadcrumbs
}
static function get_tag_breadcrumbs($current_tag_name) {
if (td_util::get_option('tds_breadcrumbs_show') == 'hide') {
return;
}
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => '',
'display_name' => __td('Tags')
);
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => '',
'display_name' => __td('Posts tagged with') . ' "' . $current_tag_name . '"'
);
return self::get_breadcrumbs($breadcrumbs_array);
}
static function get_archive_breadcrumbs() {
if (td_util::get_option('tds_breadcrumbs_show') == 'hide') {
return;
}
$cur_archive_year = get_the_date('Y');
$cur_archive_month = get_the_date('n');
$cur_archive_day = get_the_date('j');
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => get_year_link($cur_archive_year),
'display_name' => get_the_date('Y')
);
if (is_month() or is_day()) {
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => get_month_link($cur_archive_year, $cur_archive_month),
'display_name' => get_the_date('F')
);
}
if (is_day()) {
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => get_day_link($cur_archive_year, $cur_archive_month, $cur_archive_day),
'display_name' => get_the_date('j')
);
}
return self::get_breadcrumbs($breadcrumbs_array);
}
static function get_home_breadcrumbs() {
if (td_util::get_option('tds_breadcrumbs_show') == 'hide') {
return;
}
if (td_util::get_home_url()) {
$breadcrumbs_array [] = array (
'title_attribute' => __td('Blog'),
'url' => td_util::get_home_url(),
'display_name' => __td('Blog')
);
} else {
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' =>'',
'display_name' => __td('Blog')
);
}
//pagination
$td_paged = (get_query_var('paged')) ? get_query_var('paged') : 1;
if ($td_paged > 1) {
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' =>'',
'display_name' => __td('Page') . ' ' . $td_paged
);
}
return self::get_breadcrumbs($breadcrumbs_array);
}
static function get_page_breadcrumbs($page_title) {
if (td_util::get_option('tds_breadcrumbs_show') == 'hide') {
return;
}
global $post;
if( is_page() ) {
$parents = get_post_ancestors ($post->ID);
if (!empty($parents)) {
$parents = array_reverse($parents);
foreach ($parents as $parent_id) {
$breadcrumbs_array [] = array (
'title_attribute' => get_the_title($parent_id),
'url' => get_permalink($parent_id),
'display_name' => get_the_title($parent_id)
);
}
}
}
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' =>'',
'display_name' => $page_title
);
return self::get_breadcrumbs($breadcrumbs_array);
}
static function get_attachment_breadcrumbs($parent_id = '', $attachment_title = '') {
if (td_util::get_option('tds_breadcrumbs_show') == 'hide') {
return;
}
//show the attachment parent
if ($parent_id != '') {
$breadcrumbs_array [] = array (
'title_attribute' => get_the_title($parent_id),
'url' => get_permalink($parent_id),
'display_name' => get_the_title($parent_id)
);
}
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => '',
'display_name' => $attachment_title
);
return self::get_breadcrumbs($breadcrumbs_array);
}
static function get_search_breadcrumbs() {
if (td_util::get_option('tds_breadcrumbs_show') == 'hide') {
return;
}
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => '',
'display_name' => __td('Search')
);
return self::get_breadcrumbs($breadcrumbs_array);
}
static function get_bbpress_breadcrumbs($page_title) {
if (td_util::get_option('tds_breadcrumbs_show') == 'hide') {
return;
}
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => get_permalink( get_page_by_path( 'forums' ) ),
'display_name' => __td('Forums')
);
if (bbp_is_single_forum() or bbp_is_single_topic()) {
$breadcrumbs_array [] = array (
'title_attribute' => '',
'url' => sanitize_title(bbp_get_forum_title()),
'display_name' => bbp_get_forum_title()
);
}
return self::get_breadcrumbs($breadcrumbs_array);;
}
static function get_pagination() {
if (td_global::$current_template == '404') {
return;
}
global $wpdb, $wp_query;
$pagenavi_options = self::pagenavi_init();
$request = $wp_query->request;
$posts_per_page = intval(get_query_var('posts_per_page'));
$paged = intval(get_query_var('paged'));
$numposts = $wp_query->found_posts;
$max_page = $wp_query->max_num_pages;
if(empty($paged) || $paged == 0) {
$paged = 1;
}
$pages_to_show = intval($pagenavi_options['num_pages']);
$larger_page_to_show = intval($pagenavi_options['num_larger_page_numbers']);
$larger_page_multiple = intval($pagenavi_options['larger_page_numbers_multiple']);
$pages_to_show_minus_1 = $pages_to_show - 1;
$half_page_start = floor($pages_to_show_minus_1/2);
$half_page_end = ceil($pages_to_show_minus_1/2);
$start_page = $paged - $half_page_start;
if($start_page <= 0) {
$start_page = 1;
}
$end_page = $paged + $half_page_end;
if(($end_page - $start_page) != $pages_to_show_minus_1) {
$end_page = $start_page + $pages_to_show_minus_1;
}
if($end_page > $max_page) {
$start_page = $max_page - $pages_to_show_minus_1;
$end_page = $max_page;
}
if($start_page <= 0) {
$start_page = 1;
}
$larger_per_page = $larger_page_to_show*$larger_page_multiple;
$larger_start_page_start = (self::td_round_number($start_page, 10) + $larger_page_multiple) - $larger_per_page;
$larger_start_page_end = self::td_round_number($start_page, 10) + $larger_page_multiple;
$larger_end_page_start = self::td_round_number($end_page, 10) + $larger_page_multiple;
$larger_end_page_end = self::td_round_number($end_page, 10) + ($larger_per_page);
if($larger_start_page_end - $larger_page_multiple == $start_page) {
$larger_start_page_start = $larger_start_page_start - $larger_page_multiple;
$larger_start_page_end = $larger_start_page_end - $larger_page_multiple;
}
if($larger_start_page_start <= 0) {
$larger_start_page_start = $larger_page_multiple;
}
if($larger_start_page_end > $max_page) {
$larger_start_page_end = $max_page;
}
if($larger_end_page_end > $max_page) {
$larger_end_page_end = $max_page;
}
if($max_page > 1 || intval($pagenavi_options['always_show']) == 1) {
$pages_text = str_replace("%CURRENT_PAGE%", number_format_i18n($paged), $pagenavi_options['pages_text']);
$pages_text = str_replace("%TOTAL_PAGES%", number_format_i18n($max_page), $pages_text);
echo '<div class="page-nav">';
previous_posts_link($pagenavi_options['prev_text']);
if ($start_page >= 2 && $pages_to_show < $max_page) {
$first_page_text = str_replace("%TOTAL_PAGES%", number_format_i18n($max_page), $pagenavi_options['first_text']);
echo '<a href="'.esc_url(get_pagenum_link()).'" class="first" title="'.$first_page_text.'">'.$first_page_text.'</a>';
if(!empty($pagenavi_options['dotleft_text'])) {
echo '<span class="extend">'.$pagenavi_options['dotleft_text'].'</span>';
}
}
if($larger_page_to_show > 0 && $larger_start_page_start > 0 && $larger_start_page_end <= $max_page) {
for($i = $larger_start_page_start; $i < $larger_start_page_end; $i+=$larger_page_multiple) {
$page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['page_text']);
echo '<a href="'.esc_url(get_pagenum_link($i)).'" class="page" title="'.$page_text.'">'.$page_text.'</a>';
}
}
for($i = $start_page; $i <= $end_page; $i++) {
if($i == $paged) {
$current_page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['current_text']);
echo '<span class="current">'.$current_page_text.'</span>';
} else {
$page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['page_text']);
echo '<a href="'.esc_url(get_pagenum_link($i)).'" class="page" title="'.$page_text.'">'.$page_text.'</a>';
}
}
if($larger_page_to_show > 0 && $larger_end_page_start < $max_page) {
for($i = $larger_end_page_start; $i <= $larger_end_page_end; $i+=$larger_page_multiple) {
$page_text = str_replace("%PAGE_NUMBER%", number_format_i18n($i), $pagenavi_options['page_text']);
echo '<a href="'.esc_url(get_pagenum_link($i)).'" class="page" title="'.$page_text.'">'.$page_text.'</a>';
}
}
if ($end_page < $max_page) {
if(!empty($pagenavi_options['dotright_text'])) {
echo '<span class="extend">'.$pagenavi_options['dotright_text'].'</span>';
}
$last_page_text = str_replace("%TOTAL_PAGES%", number_format_i18n($max_page), $pagenavi_options['last_text']);
echo '<a href="'.esc_url(get_pagenum_link($max_page)).'" class="last" title="'.$last_page_text.'">'.$last_page_text.'</a>';
}
next_posts_link($pagenavi_options['next_text'], $max_page);
if(!empty($pages_text)) {
echo '<span class="pages">'.$pages_text.'</span>';
}
echo '</div>';
}
}
static function td_round_number($num, $tonearest) {
return floor($num/$tonearest)*$tonearest;
}
//the default options
static function pagenavi_init() {
$pagenavi_options = array();
$pagenavi_options['pages_text'] = __td('Page %CURRENT_PAGE% of %TOTAL_PAGES%');
$pagenavi_options['current_text'] = '%PAGE_NUMBER%';
$pagenavi_options['page_text'] = '%PAGE_NUMBER%';
$pagenavi_options['first_text'] = __td('1');
$pagenavi_options['last_text'] = __td('%TOTAL_PAGES%');
if (is_rtl()) {
$pagenavi_options['next_text'] = __td('Next') . ' <img width="6" class="td-retina right-arrow" src="' . get_template_directory_uri() . '/images/icons/similar-left.png" alt=""/>';
$pagenavi_options['prev_text'] = '<img width="6" class="td-retina left-arrow" src="' . get_template_directory_uri() . '/images/icons/similar-right.png" alt=""/> ' . __td('Prev');
} else {
$pagenavi_options['next_text'] = __td('Next') . ' <img width="6" class="td-retina right-arrow" src="' . get_template_directory_uri() . '/images/icons/similar-right.png" alt=""/>';
$pagenavi_options['prev_text'] = '<img width="6" class="td-retina left-arrow" src="' . get_template_directory_uri() . '/images/icons/similar-left.png" alt=""/> ' . __td('Prev');
}
$pagenavi_options['dotright_text'] = __td('...');
$pagenavi_options['dotleft_text'] = __td('...');
$pagenavi_options['num_pages'] = 3;
$pagenavi_options['always_show'] = 0;
$pagenavi_options['num_larger_page_numbers'] = 3;
$pagenavi_options['larger_page_numbers_multiple'] = 1000;
return $pagenavi_options;
}
static function no_posts() {
$buffy = '';
$buffy .= '<div class="no-results">';
if (is_search()) {
$buffy .= '<h2>' . __td('No results for your search') . '</h2>';
} else {
$buffy .= '<h2>' . __td('No posts to display') . '</h2>';
}
$buffy .= '</div>';
return $buffy;
}
/**
* the breadcrumb generator
* @param $breadcrumbs_array - breadcrumbs array
* @return string
*/
static function get_breadcrumbs($breadcrumbs_array) {
if (empty($breadcrumbs_array)) {
return;
}
//add home breadcrumb if the theme is configured to show it
if (td_util::get_option('tds_breadcrumbs_show_home') != 'hide') {
array_unshift($breadcrumbs_array, array(
'title_attribute' => '',
'url' => get_home_url(),
'display_name' => __td('Home', TD_THEME_NAME)
));
}
$buffy = '';
$buffy .= '<div class="entry-crumbs">';
foreach ($breadcrumbs_array as $key => $breadcrumb) {
if ($key != 0) { //add separator only after first
$buffy .= ' <span class="td-sp td-sp-breadcrumb-arrow td-bread-sep"></span> ';
}
if (empty($breadcrumb['url'])) {
//no link - breadcrumb
$buffy .= '<span itemscope itemtype="http://schema.org/BreadcrumbList">';
$buffy .= '<meta itemprop="name" content = "' . $breadcrumb['display_name'] . '">';
$buffy .= $breadcrumb['display_name'];
$buffy .= '</span>';
} else {
//normal links
$buffy .= '<span itemprop="itemListElement" itemscope itemtype="http://schema.org/ListItem"><a title="' . $breadcrumb['title_attribute'] . '" class="entry-crumb" itemprop="url" href="' . $breadcrumb['url'] . '"><span itemprop="name">' . $breadcrumb['display_name'] . '</span></a></span>';
}
}
$buffy .= '</div>';
return $buffy;
}
2。 td_util.php
//generates one breadcrumb
static function get_html5_breadcrumb($display_name, $title_attribute, $url) {
return '<span itemprop="itemListElement" itemscope itemtype="http://schema.org/BreadcrumbList"><a title="' . $title_attribute . '" class="entry-crumb" itemprop="url" href="' . $url . '"><span itemprop="name">' . $display_name . '</span></a></span>';
}