本篇文章给大家分享的是有关利用yii2.0怎么实现一个用户名验证功能，小编觉得挺实用的，因此分享给大家学习，希望大家阅读完这篇文章后可以有所收获，话不多说，跟着小编一起来看看吧。
视图signup.php代码：
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<?php
use yii\helpers\Html;
use yii\bootstrap\ActiveForm;
/* @var $this yii\web\View */
/* @var $form yii\bootstrap\ActiveForm */
/* @var $model \frontend\models\SignupForm */
$this->title = '注册';
$this->params['breadcrumbs'][] = $this->title;
?>
<div class="site-signup">
<h2><?= Html::encode($this->title) ?></h2>
<p>Please fill out the following fields to signup:</p>
<div class="row">
<div class="col-lg-5">
<?php $form = ActiveForm::begin([
'id' => 'form-signup',
'enableAjaxValidation' => true,
'enableClientValidation' => true,
]); ?>
<?= $form->field($model, 'username') ?>
<?= $form->field($model, 'email') ?>
<?= $form->field($model, 'password')->passwordInput() ?>
<?= $form->field($model, 'password_compare')->passwordInput() ?>
<div class="form-group">
<?= Html::submitButton('Signup', ['class' => 'btn btn-primary', 'name' => 'signup-button']) ?>
</div>
<?php ActiveForm::end(); ?>
</div>
</div>
</div>控制器SiteController.php
public function actionSignup()
{
$model = new SignupForm();
$model->load($_POST);
if (Yii::$app->request->isAjax) {
Yii::$app->response->format = \yii\web\Response::FORMAT_JSON;
return \yii\bootstrap\ActiveForm::validate($model);
}
if ($model->load(Yii::$app->request->post())) {
if ($user = $model->signup()) {
if (Yii::$app->getUser()->login($user)) {
return $this->goHome();
}
}
}
return $this->render('signup', [
'model' => $model,
]);
}模型SignupForm.php
use common\models\User;
use yii\base\Model;
use Yii;
/**
* Signup form
*/
class SignupForm extends Model
{
public $username;
public $email;
public $password;
public $password_compare;
/**
* @inheritdoc
*/
public function rules()
{
return [
['username', 'filter', 'filter' => 'trim'],
['username', 'required'],
['username', 'unique', 'targetClass' => '\common\models\User', 'message' => '用户名已存在.'],
['username', 'string', 'min' => 2, 'max' => 255],
['email', 'filter', 'filter' => 'trim'],
['email', 'required'],
['email', 'email'],
['email', 'unique', 'targetClass' => '\common\models\User', 'message' => '邮箱名已存在.'],
[['password', 'password_compare'], 'required'],
[['password', 'password_compare'], 'string', 'min' => 6, 'max' => 16, 'message' => '{attribute}是6-16位数字或字母'],
['password_compare', 'compare', 'compareAttribute' => 'password', 'message' => '两次密码不一致'],
];
}
/**
* Signs user up.
*
* @return User|null the saved model or null if saving fails
*/
public function signup()
{
if ($this->validate()) {
$user = new User();
$user->username = $this->username;
$user->email = $this->email;
$user->setPassword($this->password);
$user->generateAuthKey();
if ($user->save()) {
return $user;
}
}
return null;
}
}以上就是利用yii2.0怎么实现一个用户名验证功能，小编相信有部分知识点可能是我们日常工作会见到或用到的。希望你能通过这篇文章学到更多知识。更多详情敬请关注亿速云行业资讯频道。
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