Fixing PHP Codeigniter Pagination button - codeigniter-3

Question

I am now trying to modify the pagination library in version 3.1 of codeigniter.
This is the numbering of the pagination currently in use by default.
My Controller:
$config['num_links'] = 2;
Example:
1234 > >>
4 page button click
1234567 > >>
What I want :
12345 > >>
4 page button click
12345 > >>
I am now trying to modify the pagination library in version 3.1 of codeigniter.
This is the numbering of the pagination currently in use by default.
what I want
As you can see in the example, the page button is not static.
All I want is to have the page button fixed and move to the next range only when I click on the icon.
I am trying to do this in version codeigniter3.1 and I do not know how to modify the pagination class. Please help me.

Answer 1

you can try this code and refer
https://www.codeigniter.com/userguide3/libraries/pagination.html
$config["base_url"] = base_url().'example';
$config["total_rows"] = $count;//total number of result
$config["per_page"] = 5;
$config["uri_segment"] = 2;
$config['use_page_numbers'] = true;
$this->pagination->initialize($config);
$page_num = $this->uri->segment(2, 0);
$offset = ($page_num ? ($page_num - 1) * $config['per_page'] : 0);
$results = $this->product_file->select($config["per_page"], $offset);
$links = $this->pagination->create_links();