# layer插件地址:
[http://layer.layui.com/](http://layer.layui.com/)
# 自动加载
lay-verify可以设置表单验证规则
~~~
composer dump-autoload
~~~
验证码会自动缓存到浏览器,要在路径后添加一个随机数欺骗浏览器
~~~
<img src="{{url('admin/code')}}" style="float: right;"alt="" onclick="this.src='{{url('admin/code')}}?'+Math.random()">
~~~
**Laravel 验证码工具 gregwar/captcha**
在phpstorm命令行下输入:
~~~
composer require gregwar/captcha
~~~
把类引进来
`use Gregwar\Captcha\CaptchaBuilder;`
`use Gregwar\Captcha\PhraseBuilder;`
路由
~~~
Route::get('/code/captcha/{tmp}', 'Admin\LoginController@captcha');
~~~
生产验证码
~~~
// 验证码生成
public function captcha($tmp)
{
$phrase = new PhraseBuilder;
// 设置验证码位数
$code = $phrase->build(6);
// 生成验证码图片的Builder对象,配置相应属性
$builder = new CaptchaBuilder($code, $phrase);
// 设置背景颜色
$builder->setBackgroundColor(220, 210, 230);
$builder->setMaxAngle(25);
$builder->setMaxBehindLines(0);
$builder->setMaxFrontLines(0);
// 可以设置图片宽高及字体
$builder->build($width = 100, $height = 40, $font = null);
// 获取验证码的内容
$phrase = $builder->getPhrase();
// 把内容存入session
\Session::flash('code', $phrase);
// 生成图片
header("Cache-Control: no-cache, must-revalidate");
header("Content-Type:image/jpeg");
$builder->output();
}
~~~
模板案例
~~~
<input name="captcha" type="text" placeholder="验证码">
<a onclick="javascript:re_captcha();">
<img src="{{ URL('/code/captcha/1') }}" id="127ddf0de5a04167a9e427d883690ff6">
</a>
~~~
js部分
~~~
<script type="text/javascript">
function re_captcha() {
$url = "{{ URL('/code/captcha') }}";
$url = $url + "/" + Math.random();
document.getElementById('127ddf0de5a04167a9e427d883690ff6').src = $url;
}
</script>
~~~
~~~
use Illuminate\Support\Facades\Validator;
~~~
~~~
$validator = Validator::make('需要验证的表单数据','验证规则',‘错误提示信息‘)
~~~
~~~
@if (count($errors) > 0)
<div class="alert alert-danger">
<ul>
@foreach ($errors->all() as $error)
<li>{{ $error }}</li>
@endforeach
</ul>
</div>
@endif
~~~
在config目录中 database.php中prefix表示的是表前缀
需要crypt加密时要先引入 use Crypt
清空**session**
~~~
session()->flush();
~~~