How to Encrypt password using MD5 function in PHP

In your registration.php page you have to submit your password in database in encryption.

Follow following steps:

Step 1 : submit your password after applying MD5() function.

(in registration.php)


<?php

$submit = $_POST['submit'];

$username = $_POST['username'];
$password = md5($_POST['password']);

if($submit){
// Your Sql query.....!
}
?>

<form action="registration.php" method="POST">

<tr>

            <td>

                User Name : 

            </td>

            <td>

                <input name="username" type="text"/> 

            </td>

        </tr>

        <tr>

            <td>

                Password : 

            </td>

            <td>

                <input name="password" type="password"/> 

            </td>

        </tr>

        <tr>

<input type="submit" name="submit"/>

</form>

Step 2 : Now login.php you have compare user password with your database password

(in login.php) 

<?php

session_start();

$username = $_POST['username'];

$password = md5($_POST['password']);

if ($username && $password) {

    $connect = mysql_connect("localhost", "root", "") or die("Could'n connect");

    mysql_select_db("logindb") or die("Could'n connect");

    $query = mysql_query("SELECT * FROM login WHERE username = '$username'");

    $norows = mysql_num_rows($query);

    if ($norows != 0) {

        

        while($row = mysql_fetch_assoc($query)){

         $dbuname = $row['username'];

         $dbpwd = $row['password'];

        }

        if($username==$dbuname&&$password==$dbpwd){

            echo "Log in - <a href='profile.php'>Profile Page</a> click it";

            $_SESSION['username']=$username;

        }

        else{

            echo 'Incorrect Password';

        }

    }

    else{

        die("user not exist!");

    }

} else {

    die("plz enter username and password");

}

?>