WP Add New User Role Example

wp-new-user-role.php

<?php
/**
 * WP Add New User Role
 */
function wps_add_role() {
    add_role( 'manager', 'Manager', 
			array(
				'read' => true,
				'edit_posts' => true,
				'delete_posts' => true,
				'edit_published_posts' => true,
				'publish_posts' => true,
				'edit_files' => true,
				'import' => true,
				'upload_files' => true
			)
			);
}
add_action( 'init', 'wps_add_role' );