/**
 * Clean up admin menu to remove unnecessary items.
 */
function remove_admin_menus () {
	if (!current_user_can('manage_options')){ // Only proceed if user does not have admin role.
		remove_menu_page('index.php'); 				// Dashboard
		remove_menu_page('edit.php'); 				// Posts
		remove_menu_page('upload.php'); 			// Media
		remove_menu_page('link-manager.php'); 			// Links
		remove_menu_page('edit.php?post_type=page'); 		// Pages
		remove_menu_page('edit-comments.php'); 			// Comments
		remove_menu_page('themes.php'); 			// Appearance
		remove_menu_page('plugins.php'); 			// Plugins
		remove_menu_page('users.php'); 				// Users
		remove_menu_page('tools.php'); 				// Tools
		remove_menu_page('options-general.php'); 		// Settings
		
		remove_submenu_page( 'edit.php', 'edit-tags.php?taxonomy=post_tag' );	// Remove posts->tags submenu
		remove_submenu_page( 'edit.php', 'edit-tags.php?taxonomy=category' );	// Remove posts->categories submenu
	}
}
add_action('admin_menu', 'remove_admin_menus');

/**
 * Clean up admin menu to remove unnecessary items.
 */
 add_action('admin_menu', 'remove_admin_menus');

function remove_admin_menus () {
	global $menu;
	if (!current_user_can('manage_options')){ // Only proceed if user does not have admin role.
		$restricted = array(__('Dashboard'), __('Posts'), __('Media'), __('Links'), __('Pages'), __('Appearance'), __('Tools'), __('Users'), __('Settings'), __('Comments'), __('Plugins'));
		end ($menu);
		while (prev($menu)){
			$value = explode(' ',$menu[key($menu)][0]);
			if(in_array($value[0] != NULL?$value[0]:"" , $restricted)){unset($menu[key($menu)]);}
		}
	}
}

Simplify the Wordpress admin area for clients by hiding menu items. Add this snippet to your Wordpress theme's functions.php file.

Remove unnecessary menu items from Wordpress admin.

wordpress

PHP