My goal is to get the Categories from the additional custom post I've registered in functions.php. How can I get its categories and echo it on my page? here are my code so far: from page:
<?php
$args = array(
'post_type' => 'pdf',
'orderby' => 'slug',
'order' => 'ASC',
'parent' => 0,
'hide_empty' => false
);
$categories = get_categories($args);
foreach( $categories as $category ){
echo '<option><a class="ctg" href="'. get_category_link( $category->term_id ) .' ">' . $category->name . '</a></option>';
}
?>
from functions.php
$args = array(
'label' => 'category',
'public' => true,
'show_ui' => true,
'show_in_nav_menus' => true,
'show_admin_column' => true,
'hierarchical' => true,
'query_var' => true
);
register_taxonomy('pdf_cat','pdf',$args);
Categories on custom post types in wordpress are use the taxonomy functions. You can use get_terms
to fetch the "categories" in this case.
Example
$categories = get_terms([
'taxonomy' => 'pdf_cat',
'hide_empty' => false,
]);
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