get_current_user_id()

Get the current user’s ID

Contents

Description Description

Return Return

(int) The current user's ID, or 0 if no user is logged in.

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Source Source

File: wp-includes/user.php 

function get_current_user_id() {
	if ( ! function_exists( 'wp_get_current_user' ) ) {
		return 0;
	}
	$user = wp_get_current_user();
	return ( isset( $user->ID ) ? (int) $user->ID : 0 );
}

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Changelog
Version Description
MU (3.0.0) Introduced.

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Used By Used By

Used By
Used By Description
wp-includes/rest-api/endpoints/class-wp-rest-autosaves-controller.php: WP_REST_Autosaves_Controller::create_item()

Creates, updates or deletes an autosave revision.
wp-includes/rest-api/endpoints/class-wp-rest-autosaves-controller.php: WP_REST_Autosaves_Controller::create_post_autosave()

Creates autosave for the specified post.
wp-includes/script-loader.php: wp_default_packages_inline_scripts()

Adds inline scripts required for the WordPress JavaScript packages.
wp-admin/includes/template.php: do_block_editor_incompatible_meta_box()

Function that renders a “fake” meta box with an information message, shown on the block editor, when an incompatible meta box is found.
wp-admin/includes/post.php: the_block_editor_meta_boxes()

Renders the meta boxes forms.
wp-admin/includes/meta-boxes.php: register_and_do_post_meta_boxes()

Registers the default post meta boxes, and runs the do_meta_boxes actions.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::handle_dismiss_autosave_or_lock_request()

Delete a given auto-draft changeset or the autosave revision for a given changeset or delete changeset lock.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::set_changeset_lock()

Marks the changeset post as being currently edited by the current user.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::refresh_changeset_lock()

Refreshes changeset lock with the current time if current user edited the changeset before.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::get_changeset_posts()

Get changeset posts.
wp-includes/script-loader.php: wp_localize_community_events()

Localizes community events data that needs to be passed to dashboard.js.
wp-includes/widgets/class-wp-widget-text.php: WP_Widget_Text::render_control_template_scripts()

Render form template scripts.
wp-admin/includes/ajax-actions.php: wp_ajax_get_community_events()

Handles AJAX requests for community events
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::_publish_changeset_values()

Publish changeset values.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::save_changeset_post()

Save the post for the loaded changeset.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::changeset_data()

Get changeset data.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::delete_current_item()

Deletes the current user.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::check_role_update()

Determines if the current user is allowed to make the desired roles change.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::update_current_item_permissions_check()

Checks if a given request has access to update the current user.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::update_current_item()

Updates the current user.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::delete_current_item_permissions_check()

Checks if a given request has access to delete the current user.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::get_current_item()

Retrieves the current user.
wp-includes/rest-api/endpoints/class-wp-rest-users-controller.php: WP_REST_Users_Controller::get_item_permissions_check()

Checks if a given request has access to read a user.
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php: WP_REST_Posts_Controller::prepare_item_for_database()

Prepares a single post for create or update.
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php: WP_REST_Posts_Controller::update_item_permissions_check()

Checks if a given request has access to update a post.
wp-includes/rest-api/endpoints/class-wp-rest-posts-controller.php: WP_REST_Posts_Controller::create_item_permissions_check()

Checks if a given request has access to create a post.
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php: WP_REST_Comments_Controller::check_edit_permission()

Checks if a comment can be edited or deleted.
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php: WP_REST_Comments_Controller::check_read_permission()

Checks if the comment can be read.
wp-includes/rest-api/endpoints/class-wp-rest-comments-controller.php: WP_REST_Comments_Controller::create_item_permissions_check()

Checks if a given request has access to create a comment.
wp-includes/comment.php: wp_check_comment_flood()

Checks whether comment flooding is occurring.
wp-includes/class-wp-customize-manager.php: WP_Customize_Manager::customize_pane_settings()

Print JavaScript settings for parent window.
wp-admin/includes/class-wp-screen.php: WP_Screen::render_meta_boxes_preferences()

Render the meta boxes preferences.
wp-admin/includes/ajax-actions.php: wp_ajax_save_wporg_username()

Ajax handler for saving the user’s WordPress.org username.
wp-includes/customize/class-wp-customize-nav-menu-item-setting.php: WP_Customize_Nav_Menu_Item_Setting::value_as_wp_post_nav_menu_item()

Get the value emulated into a WP_Post and set up as a nav_menu_item.
wp-admin/includes/post.php: wp_edit_attachments_query_vars()

Get the query variables for the current attachments request.
wp-admin/includes/ajax-actions.php: wp_ajax_destroy_sessions()

Ajax handler for destroying multiple open sessions for a user.
wp-includes/user.php: wp_destroy_all_sessions()

Remove all session tokens for the current user from the database.
wp-includes/user.php: wp_get_all_sessions()

Retrieve a list of sessions for the current user.
wp-includes/user.php: wp_destroy_current_session()

Remove the current session token from the database.
wp-includes/user.php: wp_destroy_other_sessions()

Remove all but the current session token for the current user for the database.
wp-admin/includes/ms.php: _access_denied_splash()

Displays an access denied message when a user tries to view a site’s dashboard they do not have access to.
wp-admin/includes/ms.php: choose_primary_blog()

Handles the display of choosing a user’s primary site.
wp-includes/user.php: new_user_email_admin_notice()

Adds an admin notice alerting the user to check for confirmation request email after email address change.
wp-admin/includes/plugin-install.php: install_plugins_favorites_form()

Show a username form for the favorites page
wp-admin/includes/dashboard.php: wp_dashboard_quick_press()

The Quick Draft widget display and creation of drafts.
wp-admin/includes/dashboard.php: wp_dashboard_recent_drafts()

Show recent drafts of the user on the dashboard.
wp-admin/includes/user.php: edit_user()

Edit user settings based on contents of $_POST
wp-admin/includes/class-wp-plugin-install-list-table.php: WP_Plugin_Install_List_Table::prepare_items()
wp-admin/includes/class-wp-internal-pointers.php: WP_Internal_Pointers::enqueue_scripts()

Initializes the new feature pointers.
wp-admin/includes/class-wp-users-list-table.php: WP_Users_List_Table::single_row()

Generate HTML for a single row on the users.php admin panel.
wp-admin/includes/post.php: wp_check_post_lock()

Check to see if the post is currently being edited by another user.
wp-admin/includes/post.php: wp_set_post_lock()

Mark the post as currently being edited by the current user
wp-admin/includes/post.php: wp_create_post_autosave()

Creates autosave data for the specified post from $_POST data.
wp-admin/includes/post.php: post_preview()

Saves a draft or manually autosaves for the purpose of showing a post preview.
wp-admin/includes/post.php: wp_autosave()

Save a post submitted with XHR
wp-admin/includes/ajax-actions.php: wp_ajax_save_user_color_scheme()

Ajax handler for auto-saving the selected color scheme for a user’s own profile.
wp-admin/includes/post.php: _wp_translate_postdata()

Rename $_POST data from form names to DB post columns.
wp-admin/includes/post.php: edit_post()

Update an existing post with values provided in $_POST.
wp-admin/includes/ajax-actions.php: wp_ajax_wp_remove_post_lock()

Ajax handler for removing a post lock.
wp-admin/includes/ajax-actions.php: wp_ajax_dismiss_wp_pointer()

Ajax handler for dismissing a WordPress pointer.
wp-admin/includes/ajax-actions.php: wp_ajax_update_welcome_panel()

Ajax handler for updating whether to display the welcome panel.
wp-admin/includes/ajax-actions.php: wp_ajax_inline_save()

Ajax handler for Quick Edit saving a post from a list table.
wp-admin/includes/bookmark.php: wp_insert_link()

Inserts/updates links into/in the database.
wp-admin/includes/class-wp-media-list-table.php: WP_Media_List_Table::display_rows()
wp-admin/includes/class-wp-comments-list-table.php: WP_Comments_List_Table::get_views()
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::single_row()
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::get_views()
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::__construct()

Constructor.
wp-admin/includes/class-wp-posts-list-table.php: WP_Posts_List_Table::prepare_items()
wp-includes/capabilities.php: is_super_admin()

Determine if user is a site admin.
wp-includes/pluggable.php: wp_notify_postauthor()

Notify an author (and/or others) of a comment/trackback/pingback on a post.
wp-includes/pluggable.php: wp_clear_auth_cookie()

Removes all of the cookies associated with authentication.
wp-includes/deprecated.php: wp_admin_bar_dashboard_view_site_menu()

Add the “Dashboard”/”Visit Site” menu.
wp-includes/deprecated.php: is_blog_user()

Checks if the current user belong to a given site.
wp-includes/class-wp-query.php: WP_Query::get_posts()

Retrieves an array of posts based on query variables.
wp-includes/link-template.php: get_dashboard_url()

Retrieves the URL to the user’s dashboard.
wp-includes/link-template.php: get_edit_profile_url()

Retrieves the URL to the user’s profile editor.
wp-includes/link-template.php: get_edit_user_link()

Retrieves the edit user link.
wp-includes/link-template.php: get_adjacent_post()

Retrieves the adjacent post.
wp-includes/class-wp-admin-bar.php: WP_Admin_Bar::initialize()
wp-includes/admin-bar.php: wp_admin_bar_wp_menu()

Add the WordPress logo menu.
wp-includes/admin-bar.php: wp_admin_bar_my_account_item()

Add the “My Account” item.
wp-includes/admin-bar.php: wp_admin_bar_my_account_menu()

Add the “My Account” submenu items.
wp-includes/option.php: wp_user_settings()

Saves and restores user interface settings stored in a cookie.
wp-includes/option.php: get_all_user_settings()

Retrieve all user interface settings.
wp-includes/option.php: wp_set_all_user_settings()

Private. Set all user interface settings.
wp-includes/option.php: delete_all_user_settings()

Delete the user settings of the current user.
wp-includes/user.php: is_user_member_of_blog()

Find out whether a user is a member of a given blog.
wp-includes/user.php: setup_userdata()

Set up global user vars.
wp-includes/user.php: get_user_option()

Retrieve user option that can be either per Site or per Network.
wp-includes/post.php: get_posts_by_author_sql()

Retrieve the post SQL based on capability, author, and type.
wp-includes/post.php: wp_insert_post()

Insert or update a post.
wp-includes/post.php: _count_posts_cache_key()

Return the cache key for wp_count_posts() based on the passed arguments.
wp-includes/post.php: wp_count_posts()

Count number of posts of a post type and if user has permissions to view.
wp-includes/revision.php: wp_restore_post_revision()

Restores a post to the specified revision.
wp-includes/ms-deprecated.php: is_site_admin()

Determine if user is a site admin.
wp-includes/comment-template.php: wp_list_comments()

List comments.
wp-includes/script-loader.php: wp_default_scripts()

Register all WordPress scripts.
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User Contributed Notes User Contributed Notes

  4. Skip to note 4 content
    You must log in to vote on the helpfulness of this noteVote results for this note: 0You must log in to vote on the helpfulness of this note
    Contributed by Aurovrata Venet —

    This function is not means for retrieving the current logged in user as it been made abundently clear some of the examples so far.

    It is however very useful for validation of existing users’ emails, consider the following example,

    $email = $_POST['contact-email'];
if (($user = email_exists($email)) && $user !== get_current_user_id()) { 
    $validation ['contact-email'] = 'This email has already been registered, please contact us!';
}

    in this case a form is used to allow users to change their registered email, and one can validate the change by making sure that the new submitted email is not already in use and does not belong to the current user.

  5. Skip to note 5 content
    You must log in to vote on the helpfulness of this noteVote results for this note: -2You must log in to vote on the helpfulness of this note
    Contributed by Mário Valney —

    SoN9ne is right, but as we are in get_current_user_id‘s documentation make senses that example (even just for knowledge).

    This way we can query for draft posts of a current user:

    $query = new WP_Query( array(
    'author'        => get_current_user_id(),
    'post_status'   => 'draft'
) );

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