No duplicate tags by category

I did something similar in the past project and this is my solution. I hope this is what you want.

       <ul class="inline-list">
            <?php
                query_posts('category_name=lain-lain');
                if (have_posts()) : while (have_posts()) : the_post(); 
                    if ( get_the_tag_list() ) :
                        $count = 0;
                        foreach ( get_tags() as $value ) {
                            if ( $count>=10 ) 
                                break;
                            $output .= '<li><a href="http://example.com/tag/'.strtolower( $value->name )."https://wordpress.stackexchange.com/">'.ucfirst( $value->name ).'</a></li>';
                            $count++;
                        }
                        echo $output;
                    endif;
                endwhile; endif; 
                wp_reset_query(); 
            ?>
          </ul>