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_access_denied_splash() – Displays an access denied message when a user tries to view a site’s dashboard they do not have access to.

_add_post_type_submenus() – Add submenus for post types.

_add_themes_utility_last() – Adds the (theme) ‘Editor’ link to the bottom of the Appearance menu.

_admin_bar_bump_cb() – Default admin bar callback.

_admin_notice_post_locked() – Outputs the HTML for the notice to say that someone else is editing or has taken over editing of this post.

_admin_search_query() – Displays the search query.

_ajax_wp_die_handler() – Kill WordPress ajax execution.

_autop_newline_preservation_helper() – Newline preservation help function for wpautop

_cleanup_image_add_caption() – Private preg_replace callback used in image_add_caption()

_delete_attachment_theme_mod() – Checks an attachment being deleted to see if it’s a header or background image.

_deprecated_argument() – Mark a function argument as deprecated and inform when it has been used.

_filter_query_attachment_filenames() – Filter the SQL clauses of an attachment query to include filenames.

_fix_attachment_links() – Replace hrefs of attachment anchors with up-to-date permalinks.

_get_additional_user_keys() – Returns a list of meta keys to be (maybe) populated in wp_update_user().

_get_admin_bar_pref() – Retrieve the admin bar display preference of a user.

_get_cron_array() – Retrieve cron info array option.

_get_post_ancestors() – Retrieve post ancestors.

_links_add_base() – Callback to add a base url to relative links in passed content.

_links_add_target() – Callback to add a target attribute to all links in passed content.

_redirect_to_about_wordpress() – Redirect to the About WordPress page after a successful upgrade.

_remove_qs_args_if_not_in_url() – Removes arguments from a query string if they are not present in a URL DO NOT use this in plugin code.

_set_cron_array() – Updates the CRON option with the new CRON array.

_thickbox_path_admin_subfolder() – Thickbox image paths for Network Admin.

_upgrade_cron_array() – Upgrade a Cron info array.

_wp_add_global_attributes() – Helper function to add global attributes to a tag in the allowed html list.

_wp_admin_bar_init() – Instantiate the admin bar object and set it up as a global for access elsewhere.

_wp_admin_html_begin() –

_wp_ajax_add_hierarchical_term() – Ajax handler for adding a hierarchical term.

_wp_ajax_delete_comment_response() – Sends back current comment total and new page links if they need to be updated.

_wp_ajax_menu_quick_search() – Prints the appropriate response to a menu quick search.

_wp_auto_add_pages_to_menu() – Automatically add newly published page objects to menus with that as an option.

_wp_call_all_hook() – Call the ‘all’ hook, which will process the functions hooked into it.

_wp_credits_add_profile_link() – Retrieve the link to a contributor’s WordPress.org profile page.

_WP_Dependency::add_data() – Add handle data.

_wp_get_allowed_postdata() – Returns only allowed post data fields

_wp_get_attachment_relative_path() – Get the attachment path relative to the upload directory.

_wp_keep_alive_customize_changeset_dependent_auto_drafts() – Make sure that auto-draft posts get their post_date bumped or status changed to draft to prevent premature garbage-collection.

_wp_privacy_account_request_confirmed_message() – Return request confirmation message HTML.

_wp_privacy_account_request_confirmed() – Update log when privacy request is confirmed.

_wp_privacy_action_request_types() – Get all user privacy request types.

_wp_register_meta_args_whitelist() – Filter out `register_meta()` args based on a whitelist.

absint() – Convert a value to non-negative integer.

Abstract_WC_Order_Data_Store_CPT::clear_caches() – Clear any caches.

Abstract_WC_Order_Data_Store_CPT::create() – Method to create a new order in the database.

Abstract_WC_Order_Data_Store_CPT::delete_items() – Remove all line items (products, coupons, shipping, taxes) from the order.

Abstract_WC_Order_Data_Store_CPT::delete() – Method to delete an order from the database.

Abstract_WC_Order_Data_Store_CPT::get_payment_token_ids() – Get token ids for an order.

Abstract_WC_Order_Data_Store_CPT::get_post_excerpt() – Excerpt for post.

Abstract_WC_Order_Data_Store_CPT::get_post_title() – Get a title for the new post type.

Abstract_WC_Order_Data_Store_CPT::read_items() – Read order items of a specific type from the database for this order.

Abstract_WC_Order_Data_Store_CPT::read_order_data() – Read order data. Can be overridden by child classes to load other props.

Abstract_WC_Order_Data_Store_CPT::read() – Method to read an order from the database.

Abstract_WC_Order_Data_Store_CPT::update_payment_token_ids() – Update token ids for an order.

Abstract_WC_Order_Data_Store_CPT::update_post_meta() – Helper method that updates all the post meta for an order based on it’s settings in the WC_Order class.

Abstract_WC_Order_Data_Store_CPT::update() – Method to update an order in the database.

Abstract_WC_Order_Item_Type_Data_Store::clear_cache() – Clear meta cache.

Abstract_WC_Order_Item_Type_Data_Store::create() – Create a new order item in the database.

Abstract_WC_Order_Item_Type_Data_Store::delete() – Remove an order item from the database.

Abstract_WC_Order_Item_Type_Data_Store::read() – Read a order item from the database.

Abstract_WC_Order_Item_Type_Data_Store::save_item_data() – Saves an item’s data to the database / item meta.

Abstract_WC_Order_Item_Type_Data_Store::update() – Update a order item in the database.

action_scheduler_initialize_2_dot_1_dot_0() –

action_scheduler_register_2_dot_1_dot_0() –

ActionScheduler_Abstract_ListTable::bulk_delete() – Default code for deleting entries. We trust ids_sql because it is validated already by process_bulk_action()

ActionScheduler_Abstract_ListTable::column_cb() – Renders the checkbox for each row, this is the first column and it is named ID regardless of how the primary key is named (to keep the code simpler). The bulk actions will do the proper name transformation though using `$this->ID`.

ActionScheduler_Abstract_ListTable::column_default() – Default column formatting, it will escape everythig for security.

ActionScheduler_Abstract_ListTable::display_admin_notices() – Display the table heading and search query, if any

ActionScheduler_Abstract_ListTable::display_filter_by_status() – Prints the available statuses so the user can click to filter.

ActionScheduler_Abstract_ListTable::display_header() – Display the table heading and search query, if any

ActionScheduler_Abstract_ListTable::display_page() – Render the list table page, including header, notices, status filters and table.

ActionScheduler_Abstract_ListTable::display_table() – Renders the table list, we override the original class to render the table inside a form and to render any needed HTML (like the search box). By doing so the callee of a function can simple forget about any extra HTML.

ActionScheduler_Abstract_ListTable::extra_tablenav() –

ActionScheduler_Abstract_ListTable::get_bulk_actions() – Reads `$this->bulk_actions` and returns an array that WP_List_Table understands. It also validates that the bulk method handler exists. It throws an exception because this is a library meant for developers and missing a bulk method is a development-time error.

ActionScheduler_Abstract_ListTable::get_columns() – Returns the columns names for rendering. It adds a checkbox for selecting everything as the first column

ActionScheduler_Abstract_ListTable::get_items_offset() – Returns the number of items to offset/skip for this current view.

ActionScheduler_Abstract_ListTable::get_items_query_filters() – Prepares the SQL to filter rows by the options defined at `$this->filter_by`. Before trusting any data sent by the user it validates that it is a valid option.

ActionScheduler_Abstract_ListTable::get_items_query_limit() – Get prepared LIMIT clause for items query

ActionScheduler_Abstract_ListTable::get_items_query_offset() – Get prepared OFFSET clause for items query

ActionScheduler_Abstract_ListTable::get_items_query_order() – Prepares the ORDER BY sql statement. It uses `$this->sort_by` to know which columns are sortable. This requests validates the orderby $_GET parameter is a valid column and sortable. It will also use order (ASC|DESC) using DESC by default.

ActionScheduler_Abstract_ListTable::get_items_query_search() – Check if the current request is doing a "full text" search. If that is the case prepares the SQL to search texts using LIKE.

ActionScheduler_Abstract_ListTable::get_request_order() – Return the sortable column order specified for this request.

ActionScheduler_Abstract_ListTable::get_request_orderby() – Return the sortable column specified for this request to order the results by, if any.

ActionScheduler_Abstract_ListTable::get_request_search_query() – Return the search filter for this request, if any.

ActionScheduler_Abstract_ListTable::get_request_status() – Return the status filter for this request, if any.

ActionScheduler_Abstract_ListTable::get_search_box_placeholder() – Get the text to display in the search box on the list table.

ActionScheduler_Abstract_ListTable::get_sortable_columns() – Reads $this->sort_by and returns the columns name in a format that WP_Table_List expects

ActionScheduler_Abstract_ListTable::get_table_columns() – Process and return the columns name. This is meant for using with SQL, this means it always includes the primary key.

ActionScheduler_Abstract_ListTable::maybe_render_actions() – Renders the row-actions.

ActionScheduler_Abstract_ListTable::prepare_column_headers() – Prepares the _column_headers property which is used by WP_Table_List at rendering.

ActionScheduler_Abstract_ListTable::prepare_items() – Prepares the data to feed WP_Table_List.

ActionScheduler_Abstract_ListTable::process_bulk_action() – Checks if the current request has a bulk action. If that is the case it will validate and will execute the bulk method handler. Regardless if the action is valid or not it will redirect to the previous page removing the current arguments that makes this request a bulk action.

ActionScheduler_Abstract_ListTable::process_row_actions() –

ActionScheduler_Abstract_ListTable::set_items() – Set the data for displaying. It will attempt to unserialize (There is a chance that some columns are serialized). This can be override in child classes for futher data transformation.

ActionScheduler_Abstract_ListTable::translate() – Makes translation easier, it basically just wraps `_x` with some default (the package name)

ActionScheduler_Abstract_QueueRunner::__construct() – ActionScheduler_Abstract_QueueRunner constructor.

ActionScheduler_Abstract_QueueRunner::batch_limits_exceeded() – See if the batch limits have been exceeded, which is when memory usage is almost at the maximum limit, or the time to process more actions will exceed the max time limit.

ActionScheduler_Abstract_QueueRunner::get_allowed_concurrent_batches() – Get the number of concurrent batches a runner allows.

ActionScheduler_Abstract_QueueRunner::get_execution_time() – Get the number of seconds a batch has run for.

ActionScheduler_Abstract_QueueRunner::get_maximum_execution_time() – Get the maximum number of seconds a batch can run for.