How to Display Post related Category Names
<?php if ( is_object_in_taxonomy( get_post_type(), 'category' ) ) : // Hide category text when not supported ?>
<?php
/* translators: used between list items, there is a space after the comma */
$categories_list = get_the_category_list( __( ', ', 'theme' ) );
if ( $categories_list ):
?>
<h4>
<?php printf( __( '%2$s', 'theme' ), 'entry-utility-prep entry-utility-prep-cat-links', $categories_list);
?>
</h4>
<?php endif; // End if categories ?>
<?php endif; // End if is_object_in_taxonomy( get_post_type(), 'category' ) ?>