// init app with app id and secret
FacebookSession::setDefaultApplication( 'Your APP ID','Your APP Secret' );
// login helper with redirect_uri
    $helper = new FacebookRedirectLoginHelper('http://www.cumacoder.com/fbconfig.php' );

<?php
session_start();
// added in v4.0.0
require_once 'autoload.php';
use Facebook\FacebookSession;
use Facebook\FacebookRedirectLoginHelper;
use Facebook\FacebookRequest;
use Facebook\FacebookResponse;
use Facebook\FacebookSDKException;
use Facebook\FacebookRequestException;
use Facebook\FacebookAuthorizationException;
use Facebook\GraphObject;
use Facebook\Entities\AccessToken;
use Facebook\HttpClients\FacebookCurlHttpClient;
use Facebook\HttpClients\FacebookHttpable;
// init app with app id and secret
FacebookSession::setDefaultApplication( 'Your APP ID','Your APP Secret' );
// login helper with redirect_uri
    $helper = new FacebookRedirectLoginHelper('http://www.cumacoder.com/fbconfig.php' );
try {
  $session = $helper->getSessionFromRedirect();
} catch( FacebookRequestException $ex ) {
  // When Facebook returns an error
} catch( Exception $ex ) {
  // When validation fails or other local issues
}
// see if we have a session
if ( isset( $session ) ) {
  // graph api request for user data
  $request = new FacebookRequest( $session, 'GET', '/me' );
  $response = $request->execute();
  // get response
  $graphObject = $response->getGraphObject();
      $fbid = $graphObject->getProperty('id');              // To Get Facebook ID
      $fbfullname = $graphObject->getProperty('name'); // To Get Facebook full name
     $femail = $graphObject->getProperty('email');    // To Get Facebook email ID
 /* ---- Session Variables -----*/
     $_SESSION['FBID'] = $fbid;           
        $_SESSION['FULLNAME'] = $fbfullname;
     $_SESSION['EMAIL'] =  $femail;
    /* ---- header location after session ----*/
  header("Location: index.php");
} else {
  $loginUrl = $helper->getLoginUrl();
 header("Location: ".$loginUrl);
}
?>

<?php 
session_start();
session_unset();
    $_SESSION['FBID'] = NULL;
    $_SESSION['FULLNAME'] = NULL;
    $_SESSION['EMAIL'] =  NULL;
header("Location: index.php");        // you can enter home page here ( Eg : header("Location: " ."http://www.cumacoder.com"); 
?>

• DOWNLOAD DATABASE
• DOWNLOAD SOURCE CODE

CREATE TABLE `pageview` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `page` text NOT NULL,
 `userip` text NOT NULL,
 PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1

CREATE TABLE `totalview` (
 `id` int(11) NOT NULL AUTO_INCREMENT,
 `page` text NOT NULL,
 `totalvisit` text NOT NULL,
 PRIMARY KEY (`id`)
) ENGINE=MyISAM AUTO_INCREMENT=2 DEFAULT CHARSET=latin1

<?php
$mysqli = new mysqli("localhost", "root", "", "db_statistik");
 
  /* check connection */
if ($mysqli->connect_errno) {
    printf("Connect failed: %s\n", $mysqli->connect_error);
    exit();
}
 
  // ambul ip address user
  $user_ip=$_SERVER['REMOTE_ADDR'];
 
 //cek apakah sudah dikunjungi oleh ip address diatas
  $check_ip = $mysqli->query("select userip from pageview where page='yourpage' and userip='$user_ip'");
  if($check_ip->num_rows>=1)
  { 
  }
  else
  {
    //jika belum dikunjungi oleh ip address user diatas akan melakukan perhitungan
    $mysqli->query("insert into pageview values('','yourpage','$user_ip')");
   $mysqli->query("update totalview set totalvisit = totalvisit+1 where page='yourpage' ");
  }
?>
 
<html>
<head>
</head>
 
<body>
  <?php
    //menampilkan statistik pengunjung
    $stmt = $mysqli->query("select totalvisit from totalview where page='yourpage' ");
  ?>
 
    <p>Ip Address Anda <?php echo $user_ip=$_SERVER['REMOTE_ADDR'];;?></p>

  <p>Halaman ini telah dikunjungi sebangak <?php echo $stmt->num_rows;?> kali.</p>
 
</body>
</html>

1. Karena kita menggunakan Bootstrap silahkan Download Bootstrap dan letakan di folder assets
2. Setting default controller menjadi upload di config/routes.php
3. Karena kita menggunakan library upload dan library image_lib serta penyimpanan data kedatabase. maka kita load libray tersebut secara otomatis di config/autoload.php
4. Sebaiknya kita menghilangkan index.php pada url untuk mepercantik url. Silahkan Baca Tutorial CodeIgniter 3 : Menghilangkan Index.php Pada URL (Mempercantik URL Pada CodeIgniter 3)

$db['default'] = array(
 'dsn' => '',
 'hostname' => 'localhost',
 'username' => 'root',
 'password' => '',
 'database' => 'img_db',
 'dbdriver' => 'mysqli',
 'dbprefix' => '',
 'pconnect' => FALSE,
 'db_debug' => (ENVIRONMENT !== 'production'),
 'cache_on' => FALSE,
 'cachedir' => '',
 'char_set' => 'utf8',
 'dbcollat' => 'utf8_general_ci',
 'swap_pre' => '',
 'encrypt' => FALSE,
 'compress' => FALSE,
 'stricton' => FALSE,
 'failover' => array(),
 'save_queries' => TRUE
);

CREATE TABLE `upload_img` (
  `id` int(3) NOT NULL AUTO_INCREMENT,
  `namafile` varchar(35) DEFAULT NULL,
  `type` varchar(10) DEFAULT NULL,
  `keterangan` text,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB AUTO_INCREMENT=5 DEFAULT CHARSET=latin1

1. Function Index (Fungsi untuk menampilkan halaman home yang berisi file yang telah di upload)
2. Function Add ( Fungsi untuk menampilkan form upload gambar)
3. Function Insert ( Fungsi untuk upload gambar , rename , dan resize. Serta menyimpan ke database )

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

class Upload extends CI_Controller {

  var $limit=10;
  var $offset=10;

    public function __construct() {
        parent::__construct();
        $this->load->model('model_upldgbr'); //load model model_upldgbr yang berada di folder model
        $this->load->helper(array('url')); //load helper url 
    }

    public function index($page=NULL,$offset='',$key=NULL)
    {        
        $data['query'] = $this->model_upldgbr->get_allimage(); //query dari model
        
        $this->load->view('home',$data); //tampilan awal ketika controller upload di akses
    }

    public function add() {
        //view yang tampil jika fungsi add diakses pada url
        $this->load->view('fupload');
       
    }
    public function insert(){
        $this->load->library('upload');
        $nmfile = "file_".time(); //nama file + fungsi time
        $config['upload_path'] = './assets/uploads/'; //Folder untuk menyimpan hasil upload
        $config['allowed_types'] = 'gif|jpg|png|jpeg|bmp'; //type yang dapat diakses bisa anda sesuaikan
        $config['max_size'] = '3072'; //maksimum besar file 3M
        $config['max_width']  = '5000'; //lebar maksimum 5000 px
        $config['max_height']  = '5000'; //tinggi maksimu 5000 px
        $config['file_name'] = $nmfile; //nama yang terupload nantinya

        $this->upload->initialize($config);
        
        if($_FILES['filefoto']['name'])
        {
            if ($this->upload->do_upload('filefoto'))
            {
                $gbr = $this->upload->data();
                $data = array(
                  'namafile' =>$gbr['file_name'],
                  'type' =>$gbr['file_type'],
                  'keterangan' =>$this->input->post('textket')
                  
                );

                $this->model_upldgbr->get_insert($data); //akses model untuk menyimpan ke database
                //dibawah ini merupakan code untuk resize
                $config2['image_library'] = 'gd2'; 
                $config2['source_image'] = $this->upload->upload_path.$this->upload->file_name;
                $config2['new_image'] = './assets/hasil_resize/'; // folder tempat menyimpan hasil resize
                $config2['maintain_ratio'] = TRUE;
                $config2['width'] = 100; //lebar setelah resize menjadi 100 px
                $config2['height'] = 100; //lebar setelah resize menjadi 100 px
                $this->load->library('image_lib',$config2); 

                //pesan yang muncul jika resize error dimasukkan pada session flashdata
                if ( !$this->image_lib->resize()){
                $this->session->set_flashdata('errors', $this->image_lib->display_errors('', ''));   
              }
                //pesan yang muncul jika berhasil diupload pada session flashdata
                $this->session->set_flashdata("pesan", "<div class=\"col-md-12\"><div class=\"alert alert-success\" id=\"alert\">Upload gambar berhasil !!</div></div>");
                redirect('upload'); //jika berhasil maka akan ditampilkan view upload
            }else{
                //pesan yang muncul jika terdapat error dimasukkan pada session flashdata
                $this->session->set_flashdata("pesan", "<div class=\"col-md-12\"><div class=\"alert alert-danger\" id=\"alert\">Gagal upload gambar !!</div></div>");
                redirect('upload/add'); //jika gagal maka akan ditampilkan form upload
            }
        }
    }
}

<head>
    <title>Upload Gambar (Image), Rename dan Resize</title> <!-- variabel diambil dari controller -->
    
    <link href="<?=base_url()?>assets/css/bootstrap.min.css" rel="stylesheet"> <!-- Bootstrap core CSS -->
    <link href="<?=base_url()?>assets/css/style.css" rel="stylesheet"> <!-- Custom styles for this template -->
<style>

    body{
        margin:20px 10%;
    }
</style>
</head>

<div class="container">
      <!-- Main component for a primary marketing message or call to action -->
<div class="panel panel-default">
  <div class="panel-heading"><b> Daftar File IMage</b></div>
  <div class="panel-body">
    
    <?=$this->session->flashdata('pesan')?>
    <p>
        <a href="<?=base_url()?>upload/add" class="btn btn-success">Tambah</a>
    </p>
  <table class="table table-bordered table-striped">
    <tr>
      <th>Nama File</th>
      <th>Tipe File</th>
      <th>Gambar File</th>
      <th>Keterangan</th>
    </tr>
  <? foreach ($query as $row)
{
  ?>
    <tr>
      <td><?=$row->namafile;?></td>
      <td><?=$row->type;?></td>
      <td><img  src="<?=base_url()?>assets/hasil_resize/<?=$row->namafile;?>"></td>
      <td><?=$row->keterangan;?></td>
    </tr>
<?php } ?>
  </table>

</div>
</div>
</div>

<head>
    <title>Upload Gambar (Image), Rename dan Resize</title>
    
    <link href="<?=base_url()?>assets/css/bootstrap.min.css" rel="stylesheet"> <!-- Bootstrap core CSS -->
    <link href="<?=base_url()?>assets/css/style.css" rel="stylesheet"> <!-- Custom styles for this template -->
<style>

    body{
        margin:20px 10%;
    }
</style>
</head>

<div class="container">
      <!-- Main component for a primary marketing message or call to action -->
<div class="panel panel-default">
  <div class="panel-heading"><b>Form Upload Image</b></div>
  <div class="panel-body">
  <?=$this->session->flashdata('pesan')?>
     <form action="<?=base_url()?>upload/insert" method="post" enctype="multipart/form-data">
       <table class="table table-striped">

         <tr>
          <td style="width:15%;">File Foto</td>
          <td>
            <div class="col-sm-6">
                <input type="file" name="filefoto" class="form-control">
            </div>
            </td>
         </tr>
                    <tr>
          <td style="width:15%;">Keterangan Foto</td>
          <td>
            <div class="col-sm-10">
                <textarea name="textket" class="form-control"></textarea>
            </div>
            </td>
         </tr>
         <tr>
          <td colspan="2">
            <input type="submit" class="btn btn-success" value="Simpan">
            <button type="reset" class="btn btn-default">Batal</button>
          </td>
         </tr>
       </table>
     </form>
        </div>
    </div>    <!-- /panel -->

    </div> <!-- /container -->

1. function get_allimage ( fungsi untuk menampilkan semua data dari tabel)
2. function get_insert ( fungsi untuk menyimpan data gambar ke database pada saat proses upload)

<?php
class model_upldgbr extends CI_Model {

    var $tabel = 'upload_img';

    function __construct() {
        parent::__construct();
    }
    
    //fungsi untuk menampilkan semua data dari tabel database
 function get_allimage() {
        $this->db->from($this->tabel);
  $query = $this->db->get();
        return $query->result();
 }

    //fungsi insert ke database
    function get_insert($data){
       $this->db->insert($this->tabel, $data);
       return TRUE;
    }

}

?>

1. index.php
2. insert.php
3. update.php
4. delete.php

CREATE DATABASE db_mahasiswa;

CREATE TABLE mahasiswa (
   id INT(6) AUTO_INCREMENT NOT NULL,
   nim VARCHAR(10) NOT NULL,
   nama VARCHAR(30) NOT NULL,
   jk VARCHAR(1) NOT NULL,
   alamat TEXT,
   PRIMARY KEY(id)
);

<?php
$mysqli = new mysqli("localhost", "root", "", "db_mahasiswa");

/* check connection */
if ($mysqli->connect_errno) {
    printf("Connect failed: %s\n", $mysqli->connect_error);
    exit();
}

?>

<h2>Tambah Data Mahasiswa</h2>
<form action="insert.php" method="post" name="insertform">
<table>
 <tr> 
  <td>NIM</td>
  <td>:</td>
  <td><input type="number" name="nim" required placeholder="NIM"></td>
 </tr>
 <tr> 
  <td>Nama</td>
  <td>:</td>
  <td><input type="text" name="nama" required placeholder="Nama"></td>
 </tr>
  <tr> 
  <td>L/P</td>
  <td>:</td>
  <td>
   <input type="radio" name="jk" value="L">L
    <input type="radio" name="jk" value="P">P
   </td>
 </tr>
 <tr> 
  <td>Alamat</td>
  <td>:</td>
  <td><input type="text" name="alamat" required placeholder="Alamat"></td>
 </tr>
</table>
  <input type="submit" name="send" value="Submit"/>
</p>
</form>

<?php 
if ($data = $mysqli->query("SELECT * FROM mahasiswa")) {
  echo "<table border=1>";
     echo "<tr>";
     echo "<td>Nim</td>";
     echo "<td>Nama</td>";
     echo "<td>L/P</td>";
     echo "<td>Alamat</td>";
     echo "<td colspan=2>Aksi</td>";
     echo "</tr>";

 foreach ($data as $hasil) {
  echo "<tr>";
  echo "<td>".$hasil['nim']."</td>";
  echo "<td>".$hasil['nama']."</td>";
  echo "<td>".$hasil['jk']."</td>";
  echo "<td>".$hasil['alamat']."</td>";
  echo "<td><a href='update.php?id=".$hasil['id']."'>Edit</a></td>";
  echo "<td><a href='delete.php?id=".$hasil['id']."'>Hapus</a></td>";
  echo "</tr>";
 }
 echo "</table>";

    /* free result set */
    $data->close();
}

$mysqli->close();
?>

<?php
$mysqli = new mysqli("localhost", "root", "", "db_mahasiswa");

/* check connection */
if ($mysqli->connect_errno) {
    printf("Connect failed: %s\n", $mysqli->connect_error);
    exit();
}

if(isset($_POST['send'])!="")
  {
  $nim=$_POST['nim'];
  $nama=$_POST['nama'];
  $jk=$_POST['jk'];
  $alamat=$_POST['alamat'];
  $insert= $mysqli->query("INSERT INTO mahasiswa (nim,nama,jk,alamat)VALUES ('$nim','$nama','$jk','$alamat') ");
  
  if($insert)
  {
      $msg="Tambah Data Berhasil";
      echo "<script type='text/javascript'>alert('$msg');</script>";
      header('Location:index.php');
  }
  }
  else
  {
     $errormsg="Tambah Data Gagal !!! Coba Lagi !!";
      echo "<script type='text/javascript'>alert('$errormsg');</script>";
      header('Location:index.php');
  }

$mysqli->close();
?>

<?php 
$mysqli = new mysqli("localhost", "root", "", "db_mahasiswa");
if(isset($_GET['id']))
{
  $id=$_GET['id'];
  if(isset($_POST['update']))
  {
  $nim=$_POST['nim'];
  $nama=$_POST['nama'];
  $jk=$_POST['jk'];
  $alamat=$_POST['alamat'];
  $update= $mysqli->query("UPDATE mahasiswa SET nim='$nim', nama='$nama', jk='$jk', alamat='$alamat' WHERE id='$id'");
  if($update)
  {
  $msg="Berhasil Di Update";
  header('Location:index.php');
  }
}
}
?>
<?php 
  if(isset($_GET['id']))
  {
  $id=$_GET['id'];
  $ambildata = $mysqli->query("SELECT * from mahasiswa WHERE id='$id'");
  while($data=$ambildata->fetch_array(MYSQLI_BOTH))
  {
    $nim=$data['nim'];
    $nama=$data['nama'];
    $jk=$data['jk'];
    $alamat=$data['alamat'];
?>
<h2>Edit Data Mahasiswa</h2>
<form action="" method="post" name="insertform">
<table>
 <tr> 
  <td>NIM</td>
  <td>:</td>
  <td><input type="number" name="nim" required placeholder="NIM" value="<?php echo $nim;?>"></td>
 </tr>
 <tr> 
  <td>Nama</td>
  <td>:</td>
  <td><input type="text" name="nama" required placeholder="Nama" value="<?php echo $nama;?>"></td>
 </tr>
  <tr> 
  <td>L/P</td>
  <td>:</td>
  <td>
   <input type="radio" name="jk" value="L">L
    <input type="radio" name="jk" value="P">P
   </td>
 </tr>
 <tr> 
  <td>Alamat</td>
  <td>:</td>
  <td><input type="text" name="alamat" required placeholder="Alamat" value="<?php echo $alamat;?>"></td>
 </tr>
</table>
  <input type="submit" name="update" value="Simpan Update"/>
</p>
</form>
<?php } } ?> 

<?php
$mysqli = new mysqli("localhost", "root", "", "db_mahasiswa");

/* check connection */
if ($mysqli->connect_errno) {
    printf("Connect failed: %s\n", $mysqli->connect_error);
    exit();
}

if(isset($_GET['id'])!="")
  {
   $id=$_GET['id'];
   $hapus=$mysqli->query("DELETE FROM mahasiswa WHERE id='$id'");
   if($hapus)
   {
       header("Location:index.php");
   }
   else
   {
       echo mysql_error();
   }
}

$mysqli->close();
?>

1. Ranking Otomatis Calon Siswa
2. Pilihan Program Studi Yang Bisa Diubah
3. Mata Pelajaran Untuk Input Nilai Bisa Diubah
4. Setting Web
5. Tampilan Antar Muka Yang Efisien

1. Isi Biodata
2. Pilih Program Studi
3. Input Nilai Siswa
4. Kirim Verifikasi
5. Cetak Bukti Pendaftaran Dan Diserahkan Ke Panitia PSB Online Untuk Diverifikasi
6. Setelah berhasil diverifikasi . Data pendaftar akan otomatis di ranking.