$rules = ['email'=>'required|between:4,20','password'=>'required|between:6,20'// 'code'=>'required|between:4,4'
];
$message = ['email.required'=>'账号不能为空！','email.between'=>'账号必须在6-20位之间！','password.required'=>'密码不能为空！','password.between'=>'密码必须在6-20位之间！',// 'code.required'=>'验证码不能为空！',// 'code.between'=>'验证码必须为4位！',
];
$validator = Validator::make($input,$rules,$message);

$message = ['username.required'=>'账号不能为空！','password.required'=>'密码不能为空！',// 'code.required'=>'验证码不能为空！',// 'code.between'=>'验证码必须为4位！',
        ];$this->validate($request, ['username' => 'required|max:10','password' => 'required',],$message);参数说明：
public function validate(Request $request, array $rules, array $messages = [], array $customAttributes = [])

return back()->with('msg','密码错误！');

              @if(session('msg'))  <p style="color:red">{{session('msg')}}</p>  @endif @if(count($errors)>0)  @if(is_object($errors))  @foreach($errors->all() as $error)  <p style="color:red">{{$error}}</p>  @endforeach  @else  <p style="color:red">{{$errors}}</p>  @endif  @endif 

$validator = Validator::make(array('name' => 'Dayle'),array('name' => 'required|min:5')
);

$validator = Validator::make(
array('name' => 'Dayle'),
array('name' => array('required', 'min:5'))
);

if ($validator->fails())
{
// The given data did not pass validation
}

$messages = $validator->messages();

$failed = $validator->failed();

echo $messages->first('email');

foreach ($messages->get('email') as $message)
{
//
}

foreach ($messages->all() as $message)
{
//
}

if ($messages->has('email'))
{
//
}

echo $messages->first('email', '<p>:message</p>');

　　foreach ($messages->all('<li>:message</li>') as $message){//
　　}

Route::get('register', function()
{
return View::make('user.register');
});
Route::post('register', function()
{
$rules = array(...);
$validator = Validator::make(Input::all(), $rules);
if ($validator->fails())
{
return Redirect::to('register')->withErrors($validator);
}
});

<?php echo $errors->first('email'); ?>

可用的验证规则下面是一个所有可用的验证规则的列表以及它们的功能：
代码如下: