Libraries Visitor Codeigniter

Visitor.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class visitor
{
	protected $CI;

	public function __construct()
	{
        $this->CI =& get_instance();
       
	}

	// visitor
	public function counter($address_visitor)
	{
		date_default_timezone_set('Asia/Jakarta');
		if($this->CI->uri->segment(1) == "admin" || $this->CI->uri->segment(1) == "assets") {

		}else{ 
		    
		   
		    
		    if ($this->CI->agent->is_browser())
            {
                    $agent = $this->CI->agent->browser();
            }
            elseif ($this->CI->agent->is_robot())
            {
                    $agent = $this->CI->agent->robot();
            }
            elseif ($this->CI->agent->is_mobile())
            {
                    $agent = $this->CI->agent->mobile();
            }
            else
            {
                    $agent = 'Unidentified User Agent';
            }
            
			$visitor_data = array(	'url'		=> $address_visitor,
										'ip_address'	=> $this->CI->input->ip_address(),
										'user_agents' => $agent,
										'date'			=> date('Y-m-d'),
										'time'			=> date('Y-m-d H:i:s')
						);
			$this->CI->visitor_model->tambah($visitor_data);
		}
	}

}

Visitor_model.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class visitor_model extends CI_Model {

  public function __construct() {
    parent::__construct();
    date_default_timezone_set('Asia/Jakarta');
  }

  // add
  public function tambah($visitor_data) {
    $this->db->insert('visitor', $visitor_data);
  }

  // Total visitor Website on Dashboard
  public function visit_dash() {
    $now = date('Y');

    $this->db->select('date, COUNT(*) AS total');
    $this->db->from('visitor');
    $this->db->group_by('date');
    $this->db->order_by('date', 'desc');
    $this->db->where('SUBSTR(date,1,4)', $now);
    $this->db->limit(14);
    $query = $this->db->get();
    return $query->result_array();
  }


}

Welcome_1.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Welcome extends CI_Controller {

	public function __construct() {
		parent::__construct();
	
		// Load visitor
		$allsite = current_url();
		$address_visitor = str_replace('index.php/', '', $allsite);
		$this->visitor->counter($address_visitor);
	
	
	  }

	public function index()
	{
		$this->load->view('welcome_message');
	}

	public function contoh()
	{		
    $this->load->view('welcome_message');
	}
}

Welcome_2.php

<?php
defined('BASEPATH') OR exit('No direct script access allowed');

class Welcome extends CI_Controller {

	public function __construct() {
		parent::__construct();
	
		// Load visitor
		$allsite = current_url();
		$address_visitor = str_replace('index.php/', '', $allsite);
		$this->visitor->counter($address_visitor);
	
	
	  }

	public function index()
	{
		$this->load->view('welcome_message');
	}

	public function contoh()
	{
		$list = $this->visitor_model->visit_Dash();
		$visit = [];
		foreach($list as $row) {
		$visit[] = ['date' => date('d F',strtotime($row['date'])), 'count' =>$row['total']];
		}
		$data['visitor'] = json_encode($visit);
	
		$this->load->view('charts', $data);
	}
}