I’m on wordpress and for a custom post type ‘tour’ create a single-tour.php and in it I have a structure of breadcrumb like this:
<?php
global $city_details;
$parent_slug = 'tours';
$current_post_id = get_the_ID();
$city_details = get_related_city_details($parent_slug, $current_post_id, 'both');
?>
<!---------------------------- breadcrumb ---------------------------->
<nav class="breadcrumb transparent-highlight">
<ol class="breadcrumb__list">
<li class="breadcrumb__item">
<a href="<?php echo site_url(); ?>" class="breadcrumb__link">home</a>
</li>
<li class="breadcrumb__item">
<a href="<?php echo site_url('/tours/'); ?>" class="breadcrumb__link">tour</a>
</li>
<?php
// Output breadcrumb items
if (!empty($city_details['breadcrumb'])) {
foreach ($city_details['breadcrumb'] as $breadcrumb_item) {
echo '<li class="breadcrumb__item">';
echo '<a href="' . esc_url($breadcrumb_item['permalink']) . '" class="breadcrumb__link">' . esc_html($breadcrumb_item['title']) . '</a>';
echo '</li>';
}
}
?>
<li class="breadcrumb__item">
<?php esc_html(the_title()); ?>
</li>
</ol>
</nav>
now I want to add BreadcrumbList schema for each single tour base on this breadcrumb. I have a schema.php that require it in functions.php:
require_once get_template_directory() . '/inc/schema.php';
in schema.php I write this:
add_action('wp_head', 'add_breadcrumb_schema', 20);
function add_breadcrumb_schema()
{
if (is_singular('tour')) {
global $city_details;
// Initialize the breadcrumb schema
$breadcrumb_schema = [
'@context' => 'https://schema.org',
'@type' => 'BreadcrumbList',
'itemListElement' => []
];
// Add the homepage breadcrumb
$breadcrumb_schema['itemListElement'][] = [
'@type' => 'ListItem',
'position' => 1,
'name' => 'home',
'item' => site_url(),
];
// Add the 'tours' breadcrumb
$breadcrumb_schema['itemListElement'][] = [
'@type' => 'ListItem',
'position' => 2,
'name' => 'tour',
'item' => site_url('/tours/'),
];
// Add the city-based breadcrumb items dynamically (items between position 2 and 3)
if (!empty($city_details['breadcrumb'])) {
$position = 3; // Start position for the city breadcrumbs
foreach ($city_details['breadcrumb'] as $breadcrumb_item) {
$breadcrumb_schema['itemListElement'][] = [
'@type' => 'ListItem',
'position' => $position,
'name' => esc_html($breadcrumb_item['title']),
'item' => esc_url($breadcrumb_item['permalink']),
];
$position++;
}
}
// Add the current page (tour)
$breadcrumb_schema['itemListElement'][] = [
'@type' => 'ListItem',
'position' => $position,
'name' => get_the_title(),
'item' => get_permalink(),
];
// Output the schema in JSON-LD format within the <head> tag
echo '<script type="application/ld+json">' . json_encode($breadcrumb_schema) . '</script>';
}
}
Now the output schema is only have ‘home’ and ‘tour’ as the 1 and 2 position and the third position is current single tour. there should be pages that I add it after position 2 and it shows on breadcrumb but in schema it’s not included. The thing that is I’m sure about it is the declearation of global $city_details; in schema.php did not retrive the value of each single tour but I don’t know how can I fix it. Can anyone tell me how to get this correctly?