Using WordPress ‘attachment_url_to_postid()’ PHP function Written by Adrian Gordon WordPress Tries to convert an attachment URL into a post ID.
Using WordPress ‘attachment_submitbox_metadata()’ PHP function Written by Adrian Gordon WordPress Displays non-editable attachment metadata in the publish meta box.
Using WordPress ‘allowed_tags()’ PHP function Written by Adrian Gordon WordPress Displays all of the allowed tags in HTML format with attributes.
Using WordPress ‘allowed_http_request_hosts()’ PHP function Written by Adrian Gordon WordPress Mark allowed redirect hosts safe for HTTP requests as well.
Using WordPress ‘admin_url()’ PHP function Written by Adrian Gordon WordPress Retrieves the URL to the admin area for the current site.
Using WordPress ‘admin_color_scheme_picker()’ PHP function Written by Adrian Gordon WordPress Displays the default admin color scheme picker (Used in user-edit.php).
Using WordPress ‘adjacent_posts_rel_link_wp_head()’ PHP function Written by Adrian Gordon WordPress Displays relational links for the posts adjacent to the current post for single post pages.
Using WordPress ‘adjacent_posts_rel_link()’ PHP function Written by Adrian Gordon WordPress Displays the relational links for the posts adjacent to the current post.
Using WordPress ‘adjacent_image_link()’ PHP function Written by Adrian Gordon WordPress Displays next or previous image link that has the same post parent.