Create custom Tax Queries using WP_Tax_Query class.
Create custom Meta Queries using WP_Meta_Query class.
Create custom Date Queries using WP_Date_Query class.
Create custom Site Queries using WP_Network_Query class.
Create custom Site Queries using WP_Site_Query class.
Create custom Term Queries using WP_Term_Query class.
Create custom Taxonomy Meta Fields, commonly known as Term Meta.
Create custom Hooks using add_filter() and add_action() functions
Create custom Settings Pages using add_options_page function.
Create custom Dashboard Widgets using wp_add_dashboard_widget() function.
Save your own WordPress snippets and share them with the world.
Create custom WordPress Widgets using WP_Widget class.
Register oEmbed providers using wp_oembed_add_provider() function.
Create custom WordPress Meta Boxes using add_meta_box() function.
Create custom Cron Jobs using wp_schedule_event() function.
Create custom Default Theme Headers using register_default_headers() function.
Create custom readme.txt file for your WordPress plugin.
Create custom Quicktags for the WordPress text editor.
Register custom WordPress Styles using wp_register_style() function.
Register custom WordPress Scripts using wp_register_script() function.
Create custom Contact Methods for WordPress user-profile.
Create custom Comment Queries using WP_Comment_Query class.
Create custom Toolbar (Admin Bar) using WP_Admin_Bar class.
Create custom User Queries using WP_User_Query class.
Create custom WordPress Queries using WP_Query class.
Create custom Shortcodes using add_shortcode() function.
Create custom configuration settings on wp-config.php file.
Create custom Theme Features using add_theme_support() function.
Create custom Navigation Menus using register_nav_menus() function.
Create custom Sidebars using register_sidebar() function.
Create custom Post Status using register_post_status() function.
Create custom Post Types using register_post_type() function.
Create custom Taxonomies using register_taxonomy() function.
