wordpress theming - display category name with links in search page -

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how display category title , respective links , contents.

i have codes , contents on posts working not on category's title/links

something link this:

<?php /*     template name: search */ ?>   <?php if (have_posts()) : ?>     <?php while (have_posts()) : the_post(); ?>    <?php      echo '<a href="'. get_category_link($current_cat_id). '>'. the_category(' ').'</a> '; ?>                         the_title();    the_excerpt();     <?php endwhile; ?>       <?php else : ?>          <h2>no posts found.</h2>      <?php endif; ?>

use get_the_category_list: 

$categories_list = get_the_category_list( ', ' ); if( $categories_list ) echo $categories_list;

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