Display category name of custom posts only once in the loop

Display category name of custom posts only once in the loop

Which page template do you want to display the category name? category page or single page, I am pretty sure this code will work.

<?php
    $category = get_the_category();
?>
<h2 style="text-transform: uppercase;">
<?php
    foreach ( $category as $key=> $val ){
        echo $val->cat_name .'<br>';
    }
?>
</h2>