How to perform paging operation in ThinkPHP6?

With the increasing popularity of network applications, the amount of data is also increasing, and data paging has become an indispensable part of website development. In the development of PHP, the ThinkPHP6 framework provides very convenient data paging operations. This article will introduce how to perform paging operations in ThinkPHP6.

1. Paging Principle

Before introducing how to perform paging operation, let’s first understand the principle of paging. Paging, simply put, is to divide a large amount of data into several pages according to certain rules, and each page presents a certain amount of data.

According to the principle of data paging, we can divide the paging operation into two parts: data query and paging implementation. First, we need to query all data that meets the conditions and count the total number of data. Then, based on the number of records displayed on each page and the current page number, the data ID that needs to be displayed is calculated, and then the data that needs to be displayed is queried based on the ID.

2. Query all data

In ThinkPHP6, we use the model query method to obtain all data that meets the conditions. For example, we want to query all the data in a user table:

$user = new UserModel();
$list = $user->select();

In this way, all user data can be obtained, but if the amount of data is large, one-time query will cause performance problems. To solve this problem, we can use the paging function of ThinkPHP6 to perform paging queries based on the current page number and the number of records per page.

3. Pagination implementation

1. Enable paging

To enable paging, we need to use the paginate() method in ThinkPHP6. When querying data, we only need to call the paginate() method in the model and pass in the number of records displayed on each page to enable the paging function. The sample code is as follows:

$user = new UserModel();
$list = $user->paginate(10);
$this->assign('list', $list);

This code will obtain all the data in the user table and paginate it according to 10 records per page. Paging data is stored in $list, and can be assigned to template rendering through the assign() method.

2. Paging parameters

After turning on paging, we can set the paging parameters through the paginate() method. The sample code is as follows:

$user = new UserModel();
$list = $user->paginate([
    'list_rows' => 10,
    'page' => $page,
]);

• list_rows: displays the number of records per page;
• page: the current page number.

In this way, only the data of the current page will be queried when querying data, which can effectively save server resources and improve website performance.

3. Rendering the paging list

After paging query, we need to pass the paging data to the template for rendering. In the template, we use the pagination() function to render the paginated list. The sample code is as follows:

<!-- 分页列表 -->
<div class="pagination">
    {$list->render()}
</div>

This code will automatically generate a paging list based on the paging data. After rendering is completed, we can see the paging effect on the page.

4. Summary

In ThinkPHP6, the paging function is a very convenient tool that can quickly and easily perform paging queries on large amounts of data and improve website performance. This article introduces how to perform paging operations in ThinkPHP6, focusing on how to enable paging, set paging parameters, and render paging lists. By mastering this knowledge, we can use the ThinkPHP6 framework to perform paging operations more conveniently.

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