Class to display user capabilities in a table in the profile editor.

class-wp-profile-caps.php

<?php
/**
* WP_Profile_Caps class.
*
*
* @package WP_Profile_Caps
* @since WP_Profile_Caps 0.1
*/

if(realpath(__FILE__) === realpath($_SERVER["SCRIPT_FILENAME"]))
	exit("Do not access this file directly.");

if ( !class_exists('WP_Profile_Caps')) {
	class WP_Profile_Caps {
		/* Properties */

		/* Methods */

		/**
		 *
		 * Constructor: Filters and Actions.
		 *
		 * @return	void
		*/
		function __construct(){
			if ( is_admin() ) {
				add_action( 'show_user_profile', array(&$this, 'show_user_profile_fields') );
				add_action( 'edit_user_profile', array(&$this, 'show_user_profile_fields') );
				add_action( 'personal_options_update', array(&$this, 'save_user_profile_fields') );
				add_action( 'edit_user_profile_update', array(&$this, 'save_user_profile_fields') );
			}
		}
		
		function show_user_profile_fields( $user ) {
			global $table_prefix;
			if ( !is_object($user) || !isset($user->caps) || !is_array($user->caps)) return;
			if ( !current_user_can('administrator') ) return FALSE;
			$caps = $user->get_role_caps();
			$roles = $user->roles;
			$user_roles = array();
			$role_list = get_option( $table_prefix.'user_roles' );
			foreach ($roles as $role) {
				$user_roles[] = $role_list[$role]['name'];
			}
			?><h3><?php _e('User Capabilities'); ?> [Roles: <?php echo implode(', ', $user_roles); ?>]</h3>
			<table class="widefat">
				<thead>
					<tr>
						<th>Remove</th>
						<th>Capability</th>
						<th>Status</th>
					</tr>
				</thead>
				<tbody>
					<?php foreach( $caps as $cap => $enabled): ($i=isset($i)?$i+1:0); ?><tr<?php echo ($i%2?' class="alternate"':''); ?>>
						<td><input type="checkbox" name="<?php echo $table_prefix; ?>capabilities[<?php echo $cap; ?>]" /></td>
						<td><?php echo $cap; ?></td>
						<td><?php echo ($enabled?'En':'Dis').'abled'; ?></td>
					</tr><?php endforeach; ?>

				</tbody>
			</table>
			<?php
		}

		function save_user_profile_fields( $user_id ) {
			global $table_prefix;
			if ( !current_user_can( 'edit_user', $user_id ) || !isset($_POST[$table_prefix.'capabilities']))
				return FALSE;
			if ( !current_user_can('administrator') )
				return FALSE;

			$caps = $_POST[$table_prefix.'capabilities'];
			$user = get_user_by('id', $user_id);
			foreach( $caps as $cap => $enabled) $user->add_cap($cap, !user_can($user, $cap));
		}

	}
	new WP_Profile_Caps();
}