


Steps to implement form submission and processing using Yii framework
Introduction:
In web development, forms are a very common way of user interaction. How to implement form submission and processing is basic knowledge that every developer must understand. This article will use the Yii framework as an example to explain in detail how to use the framework to implement form submission and processing steps.
- Create a form view
First, we need to create a view file to display the form. In the Yii framework, we usually store view files in theviews
directory. Create a file namedform.php
in this directory and add the following code:
<?php use yiiwidgetsActiveForm; use yiihelpersHtml; ?> <?php $form = ActiveForm::begin(); ?> <?= $form->field($model, 'name')->textInput(['maxlength' => true]) ?> <?= $form->field($model, 'email')->textInput(['maxlength' => true]) ?> <div class="form-group"> <?= Html::submitButton('提交', ['class' => 'btn btn-primary']) ?> </div> <?php ActiveForm::end(); ?>
In the above code, we use ActiveForm# provided by Yii ## component is used to generate the form, and the
textInput method is used to generate the text input box.
$model represents the form model, which can be a custom Yii model class.
- Create a form controller
- Next, we need to create a controller to handle the submission of the form. Create a file named
FormController.phpin the
controllersdirectory, and add the following code:
<?php namespace appcontrollers; use Yii; use appmodelsFormModel; use yiiwebController; class FormController extends Controller { public function actionIndex() { $model = new FormModel(); if ($model->load(Yii::$app->request->post()) && $model->validate()) { // 表单提交后的处理逻辑 // ... return $this->render('success'); } return $this->render('form', [ 'model' => $model, ]); } public function actionSuccess() { return $this->render('success'); } }
FormController, and two action methods
actionIndex and
actionSuccess are defined in it. The
actionIndex method is used to process form submission, and the
actionSuccess method is used to display the page with successful submission.
- Create form model
- We also need to create a form model to process the form data. Create a file named
FormModel.phpin the
modelsdirectory, and add the following code:
<?php namespace appmodels; use yiiaseModel; class FormModel extends Model { public $name; public $email; public function rules() { return [ [['name', 'email'], 'required'], ['email', 'email'], ]; } }
FormModel, and two attributes
name and
email are defined in it. In the
rules method, we define the validation rules for the form data.
- Configuring routing rules
- Finally, we need to configure routing rules in the Yii framework so that we can correctly access the controller and action methods we created. Add the following code to the
web.phpfile in the
configdirectory:
'components' => [ // ... ], 'controllerMap' => [ 'form' => 'appcontrollersFormController', ],
controllerMap The item associates
form to the
appcontrollersFormController controller.
- Run the project
- At this point, we have completed the steps of using the Yii framework to implement form submission and processing. Enter
http://yourdomain.com/formin the browser address bar to access the form page. After filling out the form and submitting it, the success page will be displayed.
This article details the steps to implement form submission and processing using the Yii framework. By creating form view files, controllers, models, and configuring routing rules, we can easily submit and process forms. At the same time, the Yii framework provides a wealth of components and functions, making form processing simpler and more efficient.
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