<?php namespace app\models; class AgenciaRole { const ROLE_ADMIN = 'A', ROLE_USER = 'U' ; static public function getDescripcion($role = null) { $arr = array( self::ROLE_ADMIN => 'Administrador', self::ROLE_USER => 'Usuario' ); if ($role == null) return $arr; elseif (isset($arr[$role])) return $arr[$role]; return false; } }