WordPress: Template file for handling the title (<h1>)

<?php

// Empty Archive
    if ( is_404() && is_archive() ) : $page_title = 'Nothing Available';

// 404 Page
    elseif ( is_404() && !is_archive() ) : $page_title = 'Nothing Found';

// Single Page
    elseif ( is_page() ) : $page_title = get_the_title();

// Custom Post Archives
    elseif ( is_post_type_archive() ) : $page_title = $wp_query->queried_object->label; // Custom post archive
    elseif ( is_tax() ) : $page_title = $wp_query->queried_object->name; // Custom taxonomy archive

// Blog Archives
    elseif ( is_home() )    : $page_title = 'Latest Posts';
    elseif ( is_category() ): $page_title = 'Category Archives: <span>'. single_cat_title('', false) .'</span>';
    elseif ( is_tag() ) : $page_title = 'Tag Archives: <span>'. single_tag_title('', false) .'</span>';
    elseif ( is_author() )  : $page_title = 'Author Archives: <span>'. get_the_author(). '</span>';
    elseif ( is_day() ) : $page_title = 'Daily Archives: <span>'. get_the_date(). '</span>';
    elseif ( is_month() )   : $page_title = 'Monthly Archives: <span>'. get_the_date( 'F Y' ) .'</span>';
    elseif ( is_year() )    : $page_title = 'Yearly Archives: <span>'. get_the_date( 'Y' ) .'</span>';

// Defaults to the title of the first post within the main query
    else : $page_title = get_the_title();

// End of the whole IF
    endif;

// Output the H1 ?>
<h1 class="entry-title page-title"><?php echo $page_title; ?></h1>