Here is almost all the tags you will need to get started with developing your own WordPress themes.

❖TEMPLATES & FILES

• 404.php
• home.php
• index.php
• front-page.php
• single.php
• single-{post-type}.php
• page.php
• pag-{id}.php
• page-{slug}.php
• archive.php
• category.php
• category-{id}.php
• category-{slug}.php
• tag.php
• tag-{id}.php
• tag-{slug}.php
• taxonomy.php
• taxonomy-{taxonomy}.php
• taxonomy-{taxonomy}-{term}.php
• author.php
• author-{id}.php
• author-{nicename}.php
• date.php
• search.php
• searchform.php
• attachment.php
• MIME_type.php (image.php, video.php..)
• functions.php
• style.css
• editor-style.css

❖❖BLOGINFO TAGS

• bloginfo(‘admin_email’);
• bloginfo(‘atom_url’);
• bloginfo(‘blogname’);
• bloginfo(‘charset’);
• bloginfo(‘comments_atom_url’);
• bloginfo(‘comments_rss2_url’);
• bloginfo(‘description’);
• bloginfo(‘home’);
• bloginfo(‘html_type’);
• bloginfo(‘language’);
• bloginfo(‘name’);
• bloginfo(‘rdf_url’);
• bloginfo(‘rss2_url’);
• bloginfo(‘rss_url’);
• bloginfo(‘site_url’);
• bloginfo(‘stylesheet_directory ’);
• bloginfo(‘stylesheet_url ’);
• bloginfo(‘template_directory ’);
• bloginfo(‘template_url’);
• bloginfo(‘text_direction’);
• bloginfo(‘url’);
• bloginfo(‘version’);
• bloginfo(‘wpurl’);
• bloginfo_rss();
• get_bloginfo();
• get_bloginfo_rss()

❖❖TITLE TAGS

• single_cat_title();
• single_month_title();
• single_post_title();
• single_tag_title();
• the_search_query();
• wp_title();

❖❖INCLUDE TAGS

• comments_template();
• get_footer();
• get_header();
• get_search_form();
• get_sidebar();
• get_template_part();

❖❖MENU TAGS

• wp_get_nav_menu();
• wp_get_nav_menu_item();
• wp_nav_menu();

❖❖CONDITIONAL TAGS

• comments_open();
• has_excerpt();
• has_tag();
• in_the_loop();
• is_404();
• is_active_sidebar();
• is_admin();
• is_archive();
• is_attachment();
• is_author();
• is_category();
• is_comments_popup();
• is_date();
• is_day();
• is_feed();
• is_front_page();
• is_home();
• is_month();
• is_page();
• is_page_template();
• is_paged();
• is_post_type_hierarchical();
• is_preview();
• is_search();
• is_single();
• is_singular();
• is_sticky();
• is_tag();
• is_tax();
• is_time();
• is_trackback();
• is_user_logged_in();
• is_year();
• pings_open();

❖❖LOGIN & LOGOUT TAGS

• is_user_logged_in();
• wp_login_form();
• wp_login_url();
• wp_loginout();
• wp_logout();
• wp_logout_url();
• wp_lostpassword_url();
• wp_register();
• wp_registration_url();

❖❖LISTS & DROPDOWNS

• wp_dropdown_categories();
• wp_dropdown_pages();
• wp_dropdown_users();
• wp_get_archives();
• wp_list_authors();
• wp_list_bookmarks();
• wp_list_categories();
• wp_list_comments();
• wp_list_pages();
• wp_page_menu();

❖❖QUERY TAGS

• get_posts();
• query_posts();
• rewind_posts();
• wp_reset_query();

❖❖PERMALINK TAGS

• get_permalink();
• get_post_permalink();
• permalink_anchor();
• permalink_single_rss();
• post_permalink();
• the_permalink();

❖❖SHORTLINK TAGS

• the_shortlink();
• wp_get_shortlink();
• wp_shortlink_header();
• wp_shortlink_wp_head();

❖❖EDIT LINK TAGS

• edit_bookmark_link();
• edit_comment_link();
• edit_post_link();
• edit_tag_link();

❖❖POST TAGS

• body_class();
• next_image_link();
• next_post_link();
• next_posts_link();
• post_class();
• post_password_required();
• posts_nav_link();
• previous_image_link();
• previous_post_link();
• previous_posts_link();
• single_post_title();
• sticky_class();
• the_category();
• the_category_rss();
• the_content();
• the_content_rss();
• the_excerpt();
• the_excerpt_rss();
• the_ID();
• the_meta();
• the_shortlink();
• the_tags();
• the_title();
• the_title_attribute();
• the_title_rss();
• wp_link_pages();

❖❖POST THUMBNAIL TAGS

• get_post_thumbnail_id();
• get_the_post_thumbnail();
• has_post_thumbnail();
• the_post_thumbnail();

❖❖CATEGORY TAGS

• category_description();
• single_cat_title();
• the_category();
• the_category_rss();
• wp_dropdown_categories();
• wp_list_categories();

❖❖TAG TAGS

• single_tag_title();
• tag_description();
• the_tags();
• wp_generate_tag_cloud();
• wp_tag_cloud();

❖❖AUTHOR TAGS

• the_author();
• the_author_link();
• get_the_author_link();
• the_author_meta();
• the_author_posts();
• the_author_posts_link();
• wp_dropdown_users();
• wp_list_authors();

❖❖DATE & TIME TAGS

• get_calendar();
• get_the_date();
• single_month_title();
• the_date();
• the_date_xml();
• the_modified_author();
• the_modified_date();
• the_modified_time();
• the_time();

❖❖COMMENT TAGS

• cancel_comment_reply_link();
• comment_author();
• comment_author_email();
• comment_author_email_link();
• comment_author_IP();
• comment_author_link();
• comment_author_rss();
• comment_author_url();
• comment_author_url_link();
• comment_class();
• comment_date();
• comment_excerpt();
• comment_form_title();
• comment_form();
• comment_ID();
• comment_id_fields();
• comment_reply_link();
• comment_text();
• comment_text_rss();
• comment_time();
• comment_type();
• comments_link();
• comments_number();
• comments_popup_link();
• comments_popup_script();
• comments_rss_link();
• get_avatar();
• next_comments_link();
• paginate_comments_links();
• permalink_comments_rss();
• previous_comments_link();
• wp_list_comments();

❖❖LINKS MANAGER TAGS

• get_bookmark();
• get_bookmark_field();
• get_bookmarks();
• wp_list_bookmarks();

❖❖ATTACHMENT TAGS

• get_attachment_link();
• is_attachment();
• the_attachment_link();
• wp_attachment_is_image();
• wp_get_attachment_image();
• wp_get_attachment_image_src();
• wp_get_attachment_metadata();

❖❖URL TAGS

• get_admin_url();
• get_home_url();
• get_search_link();
• get_site_url();
• home_url();
• the_feed_link();
• wp_ajaxurl();