How to use pagination function in CodeIgniter framework

How to use the paging (Pagination) function in the CodeIgniter framework

Introduction:
When developing web applications, we often encounter situations where a large amount of data needs to be displayed in pages. The CodeIgniter framework provides convenient and easy-to-use paging functions, allowing developers to easily implement data paging display requirements. This article will introduce how to use the paging function in the CodeIgniter framework, with code examples.

1. Preparation
Before starting to use the paging function, you must first ensure that the CodeIgniter framework has been installed and the database connection has been correctly configured.

2. Load Pagination class library
CodeIgniter framework has built-in Pagination class library, which can be loaded through the following code:

$this->load->library('pagination ');

3. Configure paging parameters
Before using the paging function, you need to configure the paging parameters. This can be configured in the constructor in the controller or in the method where you want to use pagination. The following are some commonly used paging parameter configurations:

$config['base_url'] = 'http://example.com/index.php/controller/method/';
$config['total_rows '] = 200; //Total number of rows, set according to actual situation
$config['per_page'] = 10; //Number of rows displayed per page
$config['num_links'] = 5; / / Display the number of page number links
$config['use_page_numbers'] = TRUE; // Use page numbers instead of offsets as paging identifiers

$this->pagination->initialize($config );

4. Generate pagination links
In the view, you can use the following code to generate page navigation with pagination links:

echo $this->pagination->create_links ();

5. Processing paging requests
In the controller, you can obtain the corresponding data for display based on the requested page number. The following is an example:

public function method($page = 1) {

$offset = ($page - 1) * $config['per_page'];
$data['results'] = $this->model->get_data($config['per_page'], $offset); // 获取分页数据

$this->load->view('view', $data);

}

6. Display paging data
In the view, you can use the following The code shows the paging data obtained:

foreach($results as $row) {

echo $row['column_name']; // 根据实际情况进行修改

}

7. Summary
You can use the paging function in the CodeIgniter framework Easily implement paging display requirements for large amounts of data. By loading the Pagination class library, configuring paging parameters, generating paging links, processing paging requests and displaying paging data, developers can develop web applications more conveniently.

The above is a detailed introduction and code examples on how to use the paging function in the CodeIgniter framework. I hope this article can be of some help and guidance to developers who are coming into contact with the CodeIgniter framework for the first time. Happy coding and good luck with your work!

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