我有一个名为country的自定义分类法。我只想显示主要类别。我安装了yoast插件，这就是我设置主要类别的方式。
我正在使用我发现的这段代码来做同样的事情，但它适用于帖子类别，效果很好。
<?php
$primaryCat = new WPSEO_Primary_Term(\'category\', get_the_ID());
$primaryCat = $primaryCat->get_primary_term();
$primaryCat = get_cat_name($primaryCat);
$categories = get_the_category();
foreach( $categories as $category ) {
$defaultCat = $category->name;
$defaultCatLink = get_category_link( $category->term_id );
}
if ( $primaryCat !== "" ) {
$cat = new WPSEO_Primary_Term(\'category\', get_the_ID());
$cat = $cat->get_primary_term();
$catName = get_cat_name($cat);
$catLink = get_category_link($cat);
} else {
$catName = $defaultCat;
$catLink = $defaultCatLink;
}
?>
<h3><a href="<?php echo $catLink; ?>"><?php echo $catName; ?></a></h3>
如果有人能帮我找出如何获取主类别并将其显示为自定义分类法，我将不胜感激？
谢谢你抽出时间来看看我的问题！！
SO网友:Rico Shaft
我找到了这个，它很有效。向WP Munchies大声喊叫！https://wpmunchies.com/display-primary-category-using-yoasts-make-primary-feature/
<?php
// Fill in your custom taxonomy here
$yourTaxonomy = \'CUSTOM_TAXONOMY\';
// SHOW YOAST PRIMARY CATEGORY, OR FIRST CATEGORY
$category = get_the_terms( $postId, $yourTaxonomy );
$useCatLink = true;
// If post has a category assigned.
if ($category){
$category_display = \'\';
$category_link = \'\';
if ( class_exists(\'WPSEO_Primary_Term\') )
{
// Show the post\'s \'Primary\' category, if this Yoast feature is available, & one is set
$wpseo_primary_term = new WPSEO_Primary_Term( \'event_cat\', get_the_id() );
$wpseo_primary_term = $wpseo_primary_term->get_primary_term();
$term = get_term( $wpseo_primary_term );
if (is_wp_error($term)) {
// Default to first category (not Yoast) if an error is returned
$category_display = $category[0]->name;
$category_link = get_bloginfo(\'url\') . \'/\' . \'event-category/\' . $term->slug;
} else {
// Yoast Primary category
$category_display = $term->name;
$category_link = get_term_link( $term->term_id );
}
}
else {
// Default, display the first category in WP\'s list of assigned categories
$category_display = $category[0]->name;
$category_link = get_term_link( $category[0]->term_id );
}
// Display category
if ( !empty($category_display) ){
if ( $useCatLink == true && !empty($category_link) ){
echo \'<span class="post-category">\';
echo \'<a href="\'.$category_link.\'">\'.$category_display.\'</a>\';
echo \'</span>\';
} else {
echo \'<span class="post-category">\'.$category_display.\'</span>\';
}
}
}
