PHP OOP Login and Registration System - Web Development and Web Design Codes

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Wednesday, February 28, 2018

PHP OOP Login and Registration System

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
PHP OOP Login and Registration System
PHP OOP Login and Registration System
Database and Table:
 Database name: codenair
 Table Name: users

 table structure for table 'users'
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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`
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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
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<?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
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<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
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<?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
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<?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
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<?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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