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is_blog_admin()

Whether the current request is for a site’s administrative interface.

Description

e.g. /wp-admin/

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

Return

(bool) True if inside WordPress blog administration pages.

Source

File: wp-includes/load.php 

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

	return false;
}

Changelog

Version Description
3.1.0 Introduced.

© 2003–2019 WordPress Foundation
Licensed under the GNU GPLv2+ License.
https://developer.wordpress.org/reference/functions/is_blog_admin