Yii2框架实现登陆添加验证码功能示例
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(); ?>
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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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