The steps to create a new view in the Yii framework are as follows: 1. Store the view file in the corresponding subdirectory in the views directory according to the controller name, such as views/site/; 2. Create a .php file and use lowercase plus short horizontal lines to name it, such as view-detail.php, and embed PHP variable display content; 3. Use the $this->render() method in the controller to call the view and pass the required variables; 4. Optionally use the layout file to unify the page structure, and achieve it by setting $this->layout or adding layout comments to the view; finally check whether the path, view call and variable transmission are correct.
Creating a new view in the Yii framework is not complicated. As long as you understand the structure and directory specifications of MVC, it will be very direct to operate. Simply put, put the page file mixed with HTML and PHP in the correct position, and then call it through the controller.
1. Understand the location of the view
Yii's view files are usually placed in the views directory and a subdirectory is created according to the controller's name. For example, if you have a SiteController , its view is usually placed under views/site/ .
- Controller name:
SiteController - Corresponding view directory:
views/site/ - View file naming is usually in lowercase plus short horizontal lines, such as
about-us.phporcontact_page.php
The advantage of this is that it has clear structure and is easy to find and maintain.
2. Create a view file
To create a new view, just create a new .php file in the corresponding controller directory. For example, you want to add a view to PostController that displays the details of the article:
- Create file:
views/post/view-detail.php
In this file, you can write HTML and embed PHP variables to display dynamic content. For example:
<h1><?= $post->title ?></h1> <p><?= $post->content ?></p>
Note: Do not write complicated logic in this file, and maintain the principle of "only responsible for display".
3. Render the view from the controller
After creating the view file, you need to call it from the controller. The most common way to use the $this->render() method. For example:
public function actionView($id)
{
$post = Post::findOne($id);
return $this->render('view-detail', [
'post' => $post,
]);
}Here are a few key points to note:
-
'view-detail'is a view file name without.phpsuffix - The second parameter is an array that passes variables into the view
- If you use module, you may need to add the module path, such as
@app/modules/blog/views/post/view-detail
4. Use layout and base templates (optional but recommended)
Yii supports layout files (layout), allowing you to unify the page structure. By default, the view will use the layout of views/layouts/main.php .
If you want to change the layout, you can set it in the controller:
$this->layout = 'admin'; // Use views/layouts/admin.php
Or add comments to the top of the view file to specify the layout (supported by Yii 3):
<?php
/**
* @var yii\web\View $this
*/
$this->beginPage();
?>
<!DOCTYPE html>
<html>
<head>
<title>My Page</title>
</head>
<body>
<?php $this->beginBody() ?>
<?= $content ?>
<?php $this->endBody() ?>
</body>
</html>
<?php $this->endPage() ?>This part is a little more complicated, but once configured well, it can greatly improve development efficiency.
Basically that's it. Creating a view is not complicated in itself, but it is easy to get stuck due to errors in path or variable passing. So remember to check three points:
- Is the view path correct?
- Is the controller calling the view name correctly?
- Whether the necessary variables were passed in
If you do too much, you will find that this is actually the easiest part of the entire development process.
The above is the detailed content of How do I create a new view in Yii?. For more information, please follow other related articles on the PHP Chinese website!
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