本文为大家分享了yii2.0实现验证用户名与邮箱功能的相关代码，具体内容如下

视图signup.php代码：

<?phpuse yiihelpersHtml;use yiiootstrapActiveForm;/* @var $this yiiwebView *//* @var $form yiiootstrapActiveForm *//* @var $model frontendmodelsSignupForm */$this->title = "注册";$this->params["breadcrumbs"][] = $this->title;?><div class="site-signup"> <h1><?= Html::encode($this->title) ?></h1> <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 = yiiwebResponse::FORMAT_JSON;   return yiiootstrapActiveForm::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 commonmodelsUser;use yiiaseModel;use Yii;/** * Signup form */class SignupForm extends Model{ public $username; public $email; public $password; public $password_compare; /**  * @inheritdoc  */ public function rules() {  return [   ["username", "filter", "filter" => "trim"],   ["username", "required"],   ["username", "unique", "targetClass" => "commonmodelsUser", "message" => "用户名已存在."],   ["username", "string", "min" => 2, "max" => 255],   ["email", "filter", "filter" => "trim"],   ["email", "required"],   ["email", "email"],   ["email", "unique", "targetClass" => "commonmodelsUser", "message" => "邮箱名已存在."],   [["password", "password_compare"], "required"],   [["password", "password_compare"], "string", "min" => 6, "max" => 16, "message" => "{attribute}是6-16位数字或字母"],   ["password_compare", "compare", "compareAttribute" => "password", "message" => "两次密码不一致"],  ]; } /**  * Signs user up.  *  * @return User|null the saved model or null if saving fails  */ public function signup() {  if ($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; }}

以上就是本文的全部内容，帮助大家实现yii2.0验证功能。