is_admin(): bool

Determines whether the current request is for an administrative interface page.

Contents

Description

Does not check if the user is an administrator; use current_user_can() for checking roles and capabilities.

For more information on this and similar theme functions, check out the Conditional Tags article in the Theme Developer Handbook.

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Return

bool True if inside WordPress administration interface, false otherwise.

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Source

File: wp-includes/load.php. View all references 

function is_admin() {
	if ( isset( $GLOBALS['current_screen'] ) ) {
		return $GLOBALS['current_screen']->in_admin();
	} elseif ( defined( 'WP_ADMIN' ) ) {
		return WP_ADMIN;
	}

	return false;
}

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Used By

Used By
Used By Description
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Enqueues the important emoji-related styles.
wp_enqueue_admin_bar_header_styles() wp-includes/admin-bar.php

Enqueues inline style to hide the admin bar when printing.
WP_Font_Face::__construct() wp-includes/fonts/class-wp-font-face.php

Creates and initializes an instance of WP_Font_Face.
wp_get_loading_optimization_attributes() wp-includes/media.php

Gets loading optimization attributes.
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Runs the theme.json webfonts handler.
wp_global_styles_render_svg_filters() wp-includes/deprecated.php

Renders the SVG filters supplied by theme.json.
wp_get_loading_attr_default() wp-includes/deprecated.php

Gets the default value to use for a loading attribute on an element.
wp_admin_bar_edit_site_menu() wp-includes/admin-bar.php

Adds the “Edit site” link to the Toolbar.
wp_should_load_separate_core_block_assets() wp-includes/script-loader.php

Checks whether separate styles should be loaded for core blocks on-render.
wp_get_inline_script_tag() wp-includes/script-loader.php

Wraps inline JavaScript in tag.
wp_sanitize_script_attributes() wp-includes/script-loader.php

Sanitizes an attributes array into an attributes string to be placed inside a tag.
wp_get_script_tag() wp-includes/script-loader.php

Formats loader tags.
wp_is_site_protected_by_basic_auth() wp-includes/load.php

Checks if this site is protected by HTTP Basic Auth.
WP_REST_Site_Health_Controller::load_admin_textdomain() wp-includes/rest-api/endpoints/class-wp-rest-site-health-controller.php

Loads the admin textdomain for Site Health tests.
is_protected_endpoint() wp-includes/load.php

Determines whether we are currently on an endpoint that should be protected against WSODs.
WP_Fatal_Error_Handler::handle() wp-includes/class-wp-fatal-error-handler.php

Runs the shutdown handler.
WP_Site_Health::check_wp_version_check_exists() wp-admin/includes/class-wp-site-health.php

Tests whether wp_version_check is blocked.
determine_locale() wp-includes/l10n.php

Determines the current locale desired for the request.
wp_common_block_scripts_and_styles() wp-includes/script-loader.php

Handles the enqueueing of block scripts and styles that are common to both the editor and the front-end.
wp_enqueue_registered_block_scripts_and_styles() wp-includes/script-loader.php

Enqueues registered block scripts and styles, depending on current rendered context (only enqueuing editor scripts while in context of the editor).
use_block_editor_for_post() wp-includes/post.php

Returns whether the post can be edited in the block editor.
wp_add_privacy_policy_content() wp-admin/includes/plugin.php

Declares a helper function for adding content to the Privacy Policy Guide.
WP_Customize_Manager::establish_loaded_changeset() wp-includes/class-wp-customize-manager.php

Establishes the loaded changeset.
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Enqueue all editor scripts.
WP_Taxonomy::set_props() wp-includes/class-wp-taxonomy.php

Sets taxonomy properties.
WP_Taxonomy::add_rewrite_rules() wp-includes/class-wp-taxonomy.php

Adds the necessary rewrite rules for the taxonomy.
WP_Post_Type::add_rewrite_rules() wp-includes/class-wp-post-type.php

Adds the necessary rewrite rules for the post type.
WP_Post_Type::set_props() wp-includes/class-wp-post-type.php

Sets post type properties.
get_rest_url() wp-includes/rest-api.php

Retrieves the URL to a REST endpoint on a site.
wp_admin_bar_customize_menu() wp-includes/admin-bar.php

Adds the “Customize” link to the Toolbar.
WP_Customize_Nav_Menu_Item_Setting::sort_wp_get_nav_menu_items() wp-includes/customize/class-wp-customize-nav-menu-item-setting.php

Re-apply the tail logic also applied on $items by wp_get_nav_menu_items() .
WP_Customize_Manager::wp_loaded() wp-includes/class-wp-customize-manager.php

Registers styles/scripts and initialize the preview of each setting
WP_Customize_Manager::wp_redirect_status() wp-includes/class-wp-customize-manager.php

Prevents Ajax requests from following redirects when previewing a theme by issuing a 200 response instead of a 30x.
WP_Styles::__construct() wp-includes/class-wp-styles.php

Constructor.
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Removes all visual editor stylesheets.
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Registers the internal custom header and background routines.
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Includes and instantiates the WP_Customize_Manager class.
switch_theme() wp-includes/theme.php

Switches the theme.
get_theme_mods() wp-includes/theme.php

Retrieves all theme modifications.
load_default_textdomain() wp-includes/l10n.php

Loads default translated strings based on locale.
wp_heartbeat_settings() wp-includes/general-template.php

Default settings for heartbeat.
wp_admin_bar_dashboard_view_site_menu() wp-includes/deprecated.php

Add the “Dashboard”/”Visit Site” menu.
WP_Theme::get_allowed_on_site() wp-includes/class-wp-theme.php

Returns array of stylesheet names of themes allowed on the site.
WP::handle_404() wp-includes/class-wp.php

Set the Headers for 404, if nothing is found for requested URL.
WP::parse_request() wp-includes/class-wp.php

Parses the request to find the correct WordPress query.
WP_Query::parse_query() wp-includes/class-wp-query.php

Parses a query string and sets query type booleans.
wp_deregister_script() wp-includes/functions.wp-scripts.php

Removes a registered script.
wp_auth_check_load() wp-includes/functions.php

Loads the auth check for monitoring whether the user is still logged in.
wp_widget_rss_output() wp-includes/widgets.php

Display the RSS entries in a list.
get_pagenum_link() wp-includes/link-template.php

Retrieves the link for a page number.
WP_Admin_Bar::_render() wp-includes/class-wp-admin-bar.php
wp_admin_bar_sidebar_toggle() wp-includes/admin-bar.php

Adds the sidebar toggle button.
wp_admin_bar_site_menu() wp-includes/admin-bar.php

Adds the “Site Name” menu.
wp_admin_bar_edit_menu() wp-includes/admin-bar.php

Provides an edit link for posts and terms.
wp_admin_bar_search_menu() wp-includes/admin-bar.php

Adds search form.
is_admin_bar_showing() wp-includes/admin-bar.php

Determines whether the admin bar should be showing.
wp_user_settings() wp-includes/option.php

Saves and restores user interface settings stored in a cookie.
get_post_class() wp-includes/post-template.php

Retrieves an array of the class names for the post container element.
get_the_title() wp-includes/post-template.php

Retrieves the post title.
wp_enqueue_media() wp-includes/media.php

Enqueues all scripts, styles, settings, and templates necessary to use all media JS APIs.
wp_video_shortcode() wp-includes/media.php

Builds the Video shortcode output.
image_constrain_size_for_editor() wp-includes/media.php

Scales down the default size of an image.
wp_get_attachment_url() wp-includes/post.php

Retrieves the URL for an attachment.
redirect_canonical() wp-includes/canonical.php

Redirects incoming links to the proper URL based on the site url.
ms_not_installed() wp-includes/ms-load.php

Displays a failure message.
_post_format_request() wp-includes/post-formats.php

Filters the request to allow for the format prefix.
wp_get_nav_menu_items() wp-includes/nav-menu.php

Retrieves all menu items of a navigation menu.
dynamic_sidebar() wp-includes/widgets.php

Display dynamic sidebar.
wp_get_sidebars_widgets() wp-includes/widgets.php

Retrieve full list of sidebars and their widget instance IDs.
wp_convert_widget_settings() wp-includes/widgets.php

Converts the widget settings from single to multi-widget format.
WP_Customize_Widgets::schedule_customize_register() wp-includes/class-wp-customize-widgets.php

Ensures widgets are available for all types of previews.
script_concat_settings() wp-includes/script-loader.php

Determines the concatenation and compression settings for scripts and styles.
wp_default_scripts() wp-includes/script-loader.php

Registers all WordPress scripts.
_WP_Editors::editor_settings() wp-includes/class-wp-editor.php
_WP_Editors::editor_js() wp-includes/class-wp-editor.php

Print (output) the TinyMCE configuration and initialization scripts.
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Changelog

Changelog
Version Description
1.5.1 Introduced.

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User Contributed Notes

  2. Skip to note 2 content
    You must log in to vote on the helpfulness of this noteVote results for this note: 4You must log in to vote on the helpfulness of this note
    Contributed by hearvox —

    Example:

    if ( ! is_admin() ) {
    // Runs only if this PHP code is in a file that displays outside the admin panels, like the theme template.
    echo '<div style="text-align: center">Welcome to our website.</div>';
} else {
    // Runs only if this code is in a file that displays inside the admin panels, like a plugin file.
    echo '<div style="text-align: center">Welcome to your Admin Panels.</div>';
}
  5. Skip to note 5 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 Gary Jones —

    is_admin() returns true for Ajax requests, since wp-admin/admin-ajax.php defines the WP_ADMIN constant as true.

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