如何在codeigniter php控制器函数中传递参数

Question

hi friends i have this function to show all articles, i am writing this function again and again for different categories, because codeigniter arguments are related to url how do i pass arguments so that i can reuse this function ?

This is my controller function to show all news.

function all_news(){

    //do some pagination
    $this->load->library('pagination');
    $config['base_url'] = 'http://localhost/news/all_news';
    $config['total_rows'] = $this->db->get('articles')->num_rows();
    $config['per_page'] = 10;
    $config['num_links'] = 7;
    //some css for pagination
    $config['full_tag_open'] = '<div id="pagination">';
    $config['full_tag_close'] = '</div>';
    //initialize pagination
    $this->pagination->initialize($config);
    //end pagination

    $data['title'] =" All News";

    //for pagination
    $data['query']= $this->db->order_by('id','desc');
    $data['query'] =   $this->db->get('articles',$config['per_page'],$this->uri->segment(3));

    $this->load->vars($data);
    $this->load->view('main/all_news');
}

Answer 1

Consider moving much of your controller logic into a model method. Then you'll be able send arguments to this method which will return back database results to your controller based on the arguments you send to the method.

Answer 2

http://example.com/index.php/news/local/metro/crime_is_up

The segment numbers would be this:

1-news
2-local
3-metro
4-crime_is_up

 $product_id = $this->uri->segment(3);//metro

full info https://www.codeigniter.com/user_guide/libraries/uri.html