Yii2框架实现登陆添加验证码功能示例

2018-09-07 14:28

阅读:211

  本文实例讲述了Yii2框架实现登陆添加验证码功能。分享给大家供大家参考,具体如下:

  models中

  LoginForm.php

   public $verifyCode; public function rules() { return [ …… [verifyCode, captcha, on => login], //验证码 ]; } public function scenarios() { $scenarios = parent::scenarios(); $scenarios[login] = [username, password, rememberMe, verifyCode]; return $scenarios; }

  controller中

   public function actions() { return [ error => [ class => yii\web\ErrorAction, ], captcha => [ class => yii\captcha\CaptchaAction, fixedVerifyCode => YII_ENV_TEST ? testme : null, width => 100, height => 34, padding => 0, minLength => 4, maxLength => 4, ], ]; } public function actionLogin() { if (!\Yii::$app->user->isGuest) { return $this->goHome(); } $model = new LoginForm([scenario => login]); if ($model->load(Yii::$app->request->post()) && $model->login()) { return $this->goBack(); } else { return $this->render(login, [ model => $model, ]); } }

  view中

   <?php use yii\helpers\Html; use yii\bootstrap\ActiveForm; use yii\captcha\Captcha; ?> <?php $form = ActiveForm::begin([id => login-form]); ?> <?= $form->field($model, verifyCode)->widget(Captcha::className(), [ template => <div class=input-group input-group-lg col-md-8><span class=input-group-addon><i class=glyphicon glyphicon-eye-open red></i></span>{input}<div class=input-group-addon style=padding:5px;>{image}</div></div>, options => [class => form-control,placeholder=>验证码], imageOptions=>[alt=>点击换图,title=>点击换图, style=>cursor:pointer] ])->label(false) ?> <?php ActiveForm::end(); ?>

  更多关于Yii相关内容感兴趣的读者可查看本站专题:《Yii框架入门及常用技巧总结》、《php优秀开发框架总结》、《smarty模板入门基础教程》、《php面向对象程序设计入门教程》、《php字符串(string)用法总结》、《php+mysql数据库操作入门教程》及《php常见数据库操作技巧汇总》

  希望本文所述对大家基于Yii框架的PHP程序设计有所帮助。


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