获取职位的当前类别

试试这个

$cats = get_the_category( get_the_ID() );

echo $cat_name = $cats[0]->name;

function get_post_category($postId) {
    global $wpdb;
    if (!is_null($postId)) {
        $conditions = "AND p.id=" . $postId;
    } else {
        return false;
    }
    $conditions .= " AND ttax.taxonomy=\'category\'";
    $selectfields = "term.name name";
    $query = "SELECT " . $selectfields . "
                    FROM   wp_posts p 
                    INNER JOIN wp_term_relationships trel ON trel.object_id = p.id 
                    INNER JOIN wp_term_taxonomy ttax ON ttax.term_taxonomy_id = trel.term_taxonomy_id 
                    INNER JOIN  wp_terms term ON term.term_id = ttax.term_id  
                    WHERE 1=1 " . $conditions ." LIMIT 1";
    return $wpdb->get_results($query);
}