本文实例讲述了Yii框架实现的验证码、登录及退出功能。分享给大家供大家参考,具体如下:
捣鼓了一下午,总算走通了,下面贴出代码。
Model
注:我的用户表是auth,所以模型是Auth.php
!CCaptcha::checkRequirements(), 'message'=>'请输入正确的验证码'), array('a_account', 'required', 'message' => '用户名必填'), array('a_password', 'required', 'message' => '密码必填'), array('a_password', 'authenticate'), array('rememberMe', 'boolean'), ); } public function authenticate($attribute, $params) { if (!$this->hasErrors()) { $this->_identity = new UserIdentity($this->a_account, $this->a_password); if (!$this->_identity->authenticate()) { $this->addError('a_password', '用户名或密码不存在'); } } } public function login() { if ($this->_identity === null) { $this->_identity = new UserIdentity($this->a_account, $this->a_password); $this->_identity->authenticate(); } if ($this->_identity->errorCode === UserIdentity::ERROR_NONE) { $duration = $this->rememberMe ? 60*60*24*7 : 0; Yii::app()->user->login($this->_identity, $duration); return true; } else { return false; } } public function attributeLabels() { return array( 'a_account' => '用户名', 'a_password' => '密码', 'rememberMe' => '记住登录状态', 'verifyCode' => '验证码' ); } }注:IndexForm也可以写成LoginForm,只是系统内已经有了,我就没有替换它,同时注意看自己用户表的字段,一般是password和username,而我的是a_account和a_password
Controller
array( 'class' => 'CCaptchaAction', 'width'=>100, 'height'=>50 ) ); } public function actionLogin() { if (Yii::app()->user->id) { echo "欢迎" . Yii::app()->user->id . ",退出"; } else { $model = new IndexForm(); if (isset($_POST['IndexForm'])) { $model->attributes = $_POST['IndexForm']; if ($model->validate() && $model->login()) { echo "欢迎" . Yii::app()->user->id . ",退出";exit; } } $this->render('login', array('model' => $model)); } } public function actionLogout() { Yii::app()->user->logout(); $this->redirect(SITE_URL . 'admin/index/login'); } }注:第一个方法是添加验证码的
view
beginWidget('CActiveForm', array( 'id' => 'login-form', 'enableClientValidation' => true, 'clientOptions'=> array( 'validateOnSubmit' => true ) )); ?> labelEx($model,'a_account'); ?> textField($model,'a_account'); ?> error($model,'a_account'); ?> labelEx($model,'a_password'); ?> passwordField($model,'a_password'); ?> error($model,'a_password'); ?> labelEx($model, 'verifyCode'); ?> widget('CCaptcha'); ?> textField($model, 'verifyCode'); ?> error($model, 'verifyCode'); ?> checkBox($model,'rememberMe'); ?> label($model,'rememberMe'); ?> error($model,'rememberMe'); ?> endWidget(); ?>同时修改项目下protected/components下的UserIdentity.php
find('a_account=:name',array(':name'=>$this->username)); if($user_model === null){ $this -> errorCode = self::ERROR_USERNAME_INVALID; return false; } else if ($user_model->a_password !== md5($this -> password)){ $this->errorCode=self::ERROR_PASSWORD_INVALID; return false; } else { $this->errorCode=self::ERROR_NONE; return true; } } }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。



