Category without parent or links

gistfile1.txt

<?php $categories = get_the_category(); 
					
					$temp = array();
					
					foreach($categories as $category) {
					
						if ($category->category_parent == 0) continue;
					
						$temp[] = str_replace('-', '', $category->name); 
					
					} 
					
					echo implode(", ", $temp);
					
					?>