Ubuntu Linux: Install or Add PHP-GD To Apache Web Server

The GD Graphics Library for dynamically manipulating images. You will need to compile PHP with the GD library of image functions for this to work. However. Ubuntu (and Debian) Linux comes with the package called php5-gd.
 Just type the following command to install this module:

 
# apt-get install php5-gd
 

OR

$ sudo apt-get install php5-gd
 

Finally, restart the Apache 2 web server, enter:

 
# /etc/init.d/apache2 restart
 

Now, you can test your php application.

How do I verify that php5-gd support loaded or not?

Type the following command at a shell prompt:

 
$ php5 -m | grep -i gd
 

Sample outputs:

 
   gd
 

OR

 
$ php5 -i | grep -i --color gd
 

OR

 
$ php -i | grep -i --color gd
 

Pagination Issue in Codeigniter [solved]

There is many students face problem in Pagination library in CI
CodeIgniter

Please update the following code and your problem resolved

public function index($index=1)
    {
        $per_page=2;   // set accorrding to requiremnet
       if($index==1){
           $index=0;
       }
         
         $this->load->model("MODLE_NAME");
            $user_data['user_data']=$this->Model_name->select($per_page,$index);
            $t=$this->Model_name;
            $table_name=$t::table_name;
            $query = $this->db->get($table_name);
            $row_count=$query->num_rows();
   // pagination     
       $this->load->library('pagination');

            $config['base_url'] = base_url().'admin/controller_function/index/';
            $num_rows_pagination=$row_count;
            $config['total_rows'] = $num_rows_pagination;
            $config['per_page'] = $per_page;
             $config['uri_segment'] = 4;
               // pagination formating
                    $config['full_tag_open'] = "<br><ul class='pagination'>";
                    $config['full_tag_close'] ="</ul>";
                    $config['num_tag_open'] = '<li>';
                    $config['num_tag_close'] = '</li>';
                    $config['cur_tag_open'] = "<li class='disabled'><li class='active'><a href='#'>";
                    $config['cur_tag_close'] = "<span class='sr-only'></span></a></li>";
                    $config['next_tag_open'] = "<li>";
                    $config['next_tagl_close'] = "</li>";
                    $config['prev_tag_open'] = "<li>";
                    $config['prev_tagl_close'] = "</li>";
                    $config['first_tag_open'] = "<li>";
                    $config['first_tagl_close'] = "</li>";
                    $config['last_tag_open'] = "<li>";
                    $config['last_tagl_close'] = "</li>";
            
            $this->pagination->initialize($config); 
            $user_data['pagination']= $this->pagination->create_links();
            $user_data['total_row']=$row_count;
            $user_data['page'] = 'controller_function';
        $this->load->view('admin/Manage/view_page',$user_data);   // Customize according its to view panel
       
   }
 
                           //---------------WARNING------------ 
 
//================= YOUR MODEL and Controller According to your Project ================