Breadcrumbs in wordpress

global $wp_query;
$Post_ID = $wp_query->post->ID;   
$category = get_the_category();
if(!empty($category)) {
    $current_category = $category[0];
    $parent_category = $current_category->category_parent;
    $bread_cat_link .= '<ul class="post-categories">';
    if ( $parent_category != 0 ) {
    $bread_cat_link .= '<li><a href="' . get_category_link($parent_category) . '">' . get_cat_name($parent_category) . '</a></li><span>&gt;</span>';

    }
    $bread_cat_link .= '<li><a href="' . get_category_link($current_category) . '">' . $current_category->cat_name . '</a></li>';
    $bread_cat_link .= '</ul>';
    ?>
    <a href="<?php bloginfo('home'); ?>">Homepage</a> <span>&gt;</span> <?php echo $bread_cat_link; ?>       
<?php }else {?>
    <a href="<?php bloginfo('home'); ?>">Homepage</a>
<?php }