laravel validator 表单验证

//验证  
public $rule = [

        'alias' => 'required|unique:users,alias',

        'name' => 'required',

        'passwd' => ['required','min:8','max:20','regex:/^[a-zA-Z0-9!"#$%&\'()*+,-.\/:;<=>?^_`~{|}\]]+$/'],

        'passwdtwo' =>['required','min:8','max:20','same:passwd','regex:/^[a-zA-Z0-9!"#$%&\'()*+,-.\/:;<=>?^_`~{|}\]]+$/'],

    ];

    public $messages = [

        'alias.required' => '用户名是必填项',

        'alias.unique' => '用户名已存在',

        'name.required' => '姓名是必填项',

        'passwd.required' => '密码是必填项',

        'passwd.min' => '密码长度最小8字符',

        'passwd.max' =>'密码长度最大为20字符',

        'passwd.regex'=>'密码不能为特殊字符',

        'passwdtwo.required' => '确认密码是必填项',

        'passwdtwo.min' => '确认密码长度最小8字符',

        'passwdtwo.max' =>'确认密码长度最大为20字符',

        'passwdtwo.same' => '两次输入的密码必须相同',

        'passwdtwo.regex' =>'确认密码不能为特殊字符',

    ];

//表单传递的值进行验证

 $myrule = $this->rule;

        $validator = Validator::make(Input::all(),$myrule,$this->messages);

        if ($validator->fails()) {

            return Redirect::back()->withErrors($validator)->withInput(Input::get());

        } 

//遇到错误  跳回表单重新填写

@if(!empty($errors) && count($errors) > 0 )    

       

                错误信息：{{ $errors->all()[0]}}

       

        @endif