PHP OOP Login and Registration System

Hi Guys Today we are going to Learn how to Create Login and Registration System in PHP OOP..
Learn PHP SESSION

Database and Table:
Database name: codenair
Table Name: users

table structure for table 'users'

CREATE TABLE IF NOT EXISTS `users` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `username` varchar(50) NOT NULL,
  `email` varchar(50) NOT NULL,
  `password` varchar(50) NOT NULL,
  PRIMARY KEY(id)
) ENGINE=InnoDB AUTO_INCREMENT=11 DEFAULT CHARSET=latin1;

Dumping data for table `users`

INSERT INTO `users` (`id`, `username`, `email`, `password`) VALUES
(5, 'XYZ', 'xyz@gmail.com', '1122'),
(6, 'abcd', 'abcd360@gmail.com', '1234'),
(7, 'codenair', 'Anjankumardhali6@gmail.com', '1234'),
(10, 'ANJAN', 'Anjankumardhali6@gmail.com', '1234');

Files Structure:
create 5 files called..
1. database.php
2. login.php
3. profile.php
4. registration.php
5. logout.php
Copy and Save the below codes for certain file..
1. database.php

<?php
session_start();
class DBFunction{
 protected $host="localhost";
 protected $user="root";
 protected $pass="";
 protected $dbname="codenair";
  
 public $link;
 private $error;
 public function __construct(){
  $this->connectDB();
 }
 //connecting Database
 public function connectDB(){
  $this->link = new mysqli($this->host,$this->user,$this->pass,$this->dbname);
  if(!$this->link){
   $this->error= "Connection Failed".$this->link->connect_error;
   return false;
  }
 }
 //Login User
 public function login($username,$password){
  $result=mysqli_query($this->link,"SELECT*FROM users WHERE username='$username' AND password='$password'");
  $row=$result->fetch_assoc();
  $count=$result->num_rows;
  if($count==1){
   $_SESSION['user']=array(
   'username'=>$row['username'],
   'password'=>$row['password'],
   'email'=>$row['email']
   );
   return TRUE;
  }else{
   return FALSE;
  }
 }
 //Email Check
 public function isEmailExist($email){
  $result=mysqli_query($this->link,"SELECT*FROM users WHERE email='$email'");
  $count=$result->num_rows;
  if($count==0){
   return true;
  }
 }
 //UserName Check
 public function isUserExist($username){
  $result=mysqli_query($this->link,"SELECT*FROM users WHERE username='$username'");
  $count=$result->num_rows;
  if($count==0){
   return true;
  }
 }
 //New User Registration
 public function registration($username,$email,$password){
  $result=mysqli_query($this->link,"INSERT INTO users(username,email,password)VALUE('$username','$email','$password')");
  if($result){
   return $result;
  }else{
   return false;
  }
 }
}
 
 
?>

2. login.php

<html>
<head>
<title>PHP OOP Login</title>
</head>
<h2>PHP OOP Login</h2>
 <form method="POST" action="">
 <table>
    <tr>
    <td>UserName:</td>
    <td><input type="text" name="username"/></td>
 </tr>
 <tr>
    <td>PassWord</td>
    <td><input type="text" name="password"/></td>
 </tr>
 <tr>
    <td></td>
    <td><input type="submit" name="login" value="Login Now"/></td>
 </tr>
 </table>
 </form>
</html>
<div><a href="registration.php"><b>Create New Account</b></a></div>
<?php
include "database.php";
//If user Already Logged
if(!empty($_SESSION['user'])){
 header('location:profile.php');
}
$db= new DBFunction();
if(isset($_POST['login'])){
 $username=mysqli_real_escape_string($db->link,$_POST['username']);
 $password=mysqli_real_escape_string($db->link,$_POST['password']);
 if($username=='' || $password==''){
  echo "Fields Must Not be empty";
 }else{
   $result=$db->login($username,$password);
   if($result){
  header('location:profile.php');
   }else{
    echo "Your UserName or PassWord Did't Match";
   }
 }
}
?>

3. profile.php

<?php
session_start();
if(!empty($_SESSION['user'])){?>
<?php print_r($_SESSION['user']);?>
 
<table border="1" cellspacing="0">
   <tr>
   <th>UserName</th>
   <th>PassWord</th>
   <th>Email</th>
   </tr>
   <tr>
   <td><?php echo $_SESSION['user']['username'];?></td>
   <td><?php echo $_SESSION['user']['password'];?></td>
   <td><?php echo $_SESSION['user']['email'];?></td>
   </tr>
   </table>
</table>
 <a href="logout.php">Logout Now</a>
 
<?php
}else{
 header('location:login.php');
}
 
?>

4. registration.php

<?php
include "database.php";
//If user Already Logged
if(!empty($_SESSION['user'])){
 header('location:profile.php');
}
$db= new DBFunction();
if(isset($_POST['login'])){
 $username=mysqli_real_escape_string($db->link,$_POST['username']);
 $password=mysqli_real_escape_string($db->link,$_POST['password']);
 $email=mysqli_real_escape_string($db->link,$_POST['email']);
 if($username=='' || $password=='' ||$email==''){
  $error= "Fields Must Not be empty";
 }else{
  //Initilizzing Variable
  $errors=array();
  //Exsiting Email Check
   $emailcheck=$db->isEmailExist($email);
   if(!$emailcheck){
    $emailerror='Email Aready Taken';
    array_push($errors,'Email Taken');
   }
   //Exsiting UserName Check
   $usercheck=$db->isUserExist($username);
   if(!$usercheck){
    $nameerror='UserName Already Taken';
    array_push($errors,'UserName Taken');
 }
   if(count($errors)==0){
   //Saving User Information into Database
   $register=$db->registration($username,$email,$password);
  if($register){
    $success='Registration Successfull';
   }
   }else{
    $error= 'Please Fill The form with Correct Information';
   }
  
 }
}
?>
<html>
<head>
<title>PHP OOP Registration</title>
</head>
<h2>PHP OOP Registration</h2>
 <form method="POST" action="">
 <table>
    <tr>
    <td>UserName:</td>
    <td><input type="text" name="username"/></td>
 <td><?php if(isset($nameerror)){ echo $nameerror;}?></div>
       
    </td>
 </tr>
 <tr>
    <td>PassWord</td>
    <td><input type="text" name="password"/></td>
 </tr>
 <tr>
    <td>Email</td>
    <td><input type="text" name="email"/></td>
 <td><?php if(isset($emailerror)){ echo $emailerror;}?></div>
       
    </td>
 </tr>
 <tr>
    <td></td>
    <td><input type="submit" name="login" value="Login Now"/></td>
 </tr>
 </table>
 </form>
 <?php if(isset($success)){echo $success;}?>
 <?php if(isset($error)){echo $error;}?>
</html>
<div><a href="login.php"><b>Login Now</b></a></div>

5. logout.php

<?php
session_start();
session_destroy();
header('location:login.php');
?>

That's it Friends how to create login and registration system in php oop..
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Thank You..

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Wednesday, February 28, 2018

PHP OOP Login and Registration System