CakePHP - redirectAction错误。 array_merge（）[function.array-merge]：参数＃1不是数组

Question

我使用CakePHP 1.3

我正在尝试学习CakePHP，而我正在尝试重定向控制器。但我收到了警告，我根本无法重定向到其他行动。

这是打印的警告

Warning (2): array_merge() [function.array-merge]: Argument #2 is not an array [CORE/cake/libs/router.php, line 1078]
Warning (2): array_merge() [function.array-merge]: Argument #1 is not an array [CORE/cake/dispatcher.php, line 158]
Warning (2): call_user_func_array() expects parameter 2 to be array, string given [CORE/cake/dispatcher.php, line 204]

这是我的login_controller.php以获取重定向到其他操作的控制器样本

<?php
    class LoginController extends AppController {
        var $uses = array();

        function index() {
            $result = 'empty';
            if(isset($this->data)) {
                $user = $this->data['user_txt'];
                $pass = md5($this->data['pass_txt']);

                $action = array('controller'=>'users','action'=>'login');
                $params = array('user'=>$user,'pass'=>$pass);

                $get_login = $this->requestAction($action,$params);

                if($get_login===true) {
                    $result = 'exist';
                }
            }
            $this->set('result', $result);
        }
    }
?>

这是user_controller.php代码

<?php
    class UsersController extends AppController {
        function index() {
        }

        function login() {
            $user = $this->request->params['user'];
            $pass = $this->request->params['pass'];
            $query = $this->User->find('all', array(
                    'conditions'    => array('id'=>$user,'password'=>$pass)
            ));
            $this->layout = false;
            if (isset($query) && !empty($query)) {
                return true;
            }
            else {
                return compact($query);
            }
        }
    }
?>

任何帮助都可以，谢谢