How To Create Login Signup In Php Mysqli

1 min read

How To Create Login Signup In Php Mysqli

May 15, 2024 admin0

In your project folder create another folder and name it config

In config folder create a file dbconnect.php and paste in the following code:

<?php
 $host = 'localhost';
 $user = 'root';
 $pass = '';
 $db = '';
 
 $con = mysqli_connect($host,$user,$pass,$db) or die('Unable to Connect');
?>
In your project folder create index.php file and paste in the following code:

<?php
include_once('config/dbconnect.php');
if(empty($_SESSION['username'])){
	header('Location:login.php');
}
?>
<!DOCtype="html">
<html>
<head>
 <title>Signup</title>
</head>
<body>
  <div>
   <h2>Logged in,Username <?php echo $_SESSION['username']; ?></h2>
   <p><a href="logout.php">Log out</a></p>
  </div>
</body>
</html>
Create a login.php file and paste in the following code:

<?php
include_once('config/dbconnect.php');
?>
<!DOCtype="html">
<html>
<head>
 <title>Login</title>
</head>
<body>
  <div>
   <form method="POST" action="">
    <label>Username/Email</label><input type="text" name="username"/><br/>
	<label>Password</label><input type="password" name="password"/><br/>
	<input type="submit" name="login" value="Login"/>
   </form>
  </div>
</body>
</html>
<?php
if(isset($_POST['login'])){
	
	$username = $_POST['username'];
	$password = $_POST['password'];
	$password = md5($password);
	
 $sql = "SELECT * FROM users WHERE (username = '$username' OR email = '$username') AND password = '$password'";
 $query = mysqli_query($con,$sql);
 $rows = mysqli_fetch_row($query);
 
 if($rows > 0){
	session_start();
	$_SESSION['username'] = $rows['username'];
	$_SESSION['email'] = $rows['email'];
 }else{
	header('Location:login.php?error=1'); 
 }
 
}
?>
Create a signup.php file and paste in the following code:

<?php
include_once('config/dbconnect.php');
?>
<!DOCtype="html">
<html>
<head>
 <title>Signup</title>
</head>
<body>
  <div>
   <form method="POST" action="">
    <label>Username</label><input type="text" name="username"/><br/>
	<label>Email</label><input type="email" name="email"/><br/>
	<label>Password</label><input type="password" name="password"/><br/>
	<input type="signup" name="signup" value="Signup"/>
   </form>
  </div>
</body>
</html>
<?php

if(isset($_POST['signup'])){
	
 $username = $_POST['username'];
 $email = $_POST['email'];
 $password = $_POST['password'];
 $password = md5($password);
 
 $sql = "INSERT INTO users (username,email,password) VALUE '$username','$email','$password'";
 if(mysqli_query($con,$sql)){
	 header('Location:login.php');
 }
 
}

?>
Create a logout.php file and paste in the following code:

<?php
include_once('config/dbconnect.php');
session_destroy();
header('Location:login.php');
?>

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