WordPress: Hiding admin menu and hiding dashboard widgets.

hide-menu-wordpress.php

<?php
	// ...class declaration...
        // function that adds these actions.
	add_action('admin_menu', array(&$this, 'remove_administration_menu'));
	add_action('wp_dashboard_setup', array(&$this, 'remove_dashboard_widgets'));

	public function remove_administration_menu() {
		global $menu;
		foreach($menu as $item) {
			$slug = $item[2];
			remove_menu_page($slug);
		}
	}
	
	public function remove_dashboard_widgets() {
		global $wp_meta_boxes;
		$dashboard_boxes = isset($wp_meta_boxes['dashboard']) ? $wp_meta_boxes['dashboard'] : false;
		foreach($dashboard_boxes as $section_name => $section_data) {
			foreach($section_data as $box) {
				foreach($box as $name => $data) {
					remove_meta_box($name, 'dashboard', $section_name);
				}
			}
			
		}
	}
?>