PROGRAMS

Complete Login and Registration Application using PHP and MySQL

This is an example of a combined Login and Registration application using PHP and MySQL database server. If you are looking for simple login and Registration individual applications, click on the respective links.

This application has the following features.

  • Consists of both login and signup functionality.
  • A user can upload a profile picture during the registration process.
  • Form validations have been included.
  • The password has been encrypted using the password_hash() method while inserting it into the MySQL database server during the registration process.
  • A logged-in user can update his personal details.

Let us build this application step by step.

Step 1: The application begins with the index.php which contains a link for Login and Signup.

Step 2: In order to login to an application a user must be registered first. So, click on the Signup form and fill in all the details. The signup.php file features the registration form.

Step 3: Once you submit the signup form, as per the action attribute signup.inc.php gets called which contains the form fields validations and the business logic to insert to the user registration details into the MySQL database server. The signup.inc.php file internally makes a call to dbh.inc.php to establish a connection with MySQL database server.

Step 4: Once the registration is successful, the user can use the same credentials to log-in to the application. In this example, the header.php file contains the Login form.

Step 5: When the user keys-in correct credentials in the Login form, the control is sent to the login.inc.php as this is mentioned in the action attribute of the form tag. Here the credentials are evaluated by matching the user login details with that of stored in the MySQL database. If the user credentials match perfectly, a success message is sent to the index.php otherwise a failure message. The logged-in user can click on the Logout button to come out of the application. The logout.inc.php file contains the logout logic.

Step 6: Further, a logged-in user can update the profile details by clicking in Edit-Profile. The edit profile code is implemented inside edit-profile.php. One the user submits the form, the details will be passed on to the profileUpdate.inc.php where the modified records are updated into the MySQL database.

Directory structure for Login and Registration Application

How to run this application?

You can use any PHP supported servers to run this application. To name a few WAMP, XAMPP, AppServ, etc. All these PHP servers include MySQL servers and also the phpMyAdmin dashboard. phpMyAdmin dashboard can be used to create the database server and table structure.

index.php

< ?php 
    define('TITLE',"Home | Complete Registertion From");
    include 'includes/header.php';
?>
<div id="philosophy">
    <hr />
    <br /><br />
    <h1>Advanced Login and Registration Application</h1>
    <br /><br />
    <p> Let us walk you through Complete Login and Registration Application using PHP and MySQL</p>
    
<br /><br /><br />   
</div>

< ?php 
    include 'includes/footer.php';
?>

signup.php

//signup.php
< ?php
    define('TITLE',"Signup");
    include 'includes/header.php';
    
    if(isset($_SESSION['userId']))
    {
        header("Location: index.php");
        exit();
    }
?>

<div id="contact">
    
    <hr />
    <h1>Signup</h1>
    < ?php
    
        $userName = '';
        $email = '';
    
        if(isset($_GET['error']))
        {
            if($_GET['error'] == 'emptyfields')
            {
                echo '<p class="closed">*Fill In All The Fields';
                $userName = $_GET['uid'];
                $email = $_GET['mail'];
            }
            else if ($_GET['error'] == 'invalidmailuid')
            {
                echo '<p class="closed">*Please enter a valid email and user name</p>';
            }
            else if ($_GET['error'] == 'invalidmail')
            {
                echo '<p class="closed">*Please enter a valid email</p>';
            }
            else if ($_GET['error'] == 'invaliduid')
            {
                echo '<p class="closed">*Please enter a valid user name</p>';
            }
            else if ($_GET['error'] == 'passwordcheck')
            {
                echo '<p class="closed">*Passwords donot match</p>';
            }
            else if ($_GET['error'] == 'usertaken')
            {
                echo '<p class="closed">*This User name is already taken</p>';
            }
            else if ($_GET['error'] == 'invalidimagetype')
            {
                echo '<p class="closed">*Invalid image type. Profile image must be a .jpg or .png file</p>';
            }
            else if ($_GET['error'] == 'imguploaderror')
            {
                echo '<p class="closed">*Image upload error</p>';
            }
            else if ($_GET['error'] == 'imgsizeexceeded')
            {
                echo '<p class="closed">*Image too large</p>';
            }
            else if ($_GET['error'] == 'sqlerror')
            {
                echo '<p class="closed">*Website Error: Contact admin to have the issue fixed</p>';
            }
        }
        else if (isset($_GET['signup']) == 'success')
        {
            echo '<p class="open">*Signup Successful. Please login from the Login menu on the right</p>';
        }
    ?>
    <form action="includes/signup.inc.php" method='post' id="contact-form" enctype="multipart/form-data">

        <input type="text" id="name" name="uid" placeholder="Username" value=<?php echo $userName; ?/>>
        <input type="email" id="email" name="mail" placeholder="email" value=<?php echo $email; ?/>>
        <input type="password" id="pwd" name="pwd" placeholder="password"/>
        <input type="password" id="pwd-repeat" name="pwd-repeat" placeholder="repeat password"/>
        
        <h5>Profile Picture</h5>
        <div class="upload-btn-wrapper">
            <button class="btn">Upload a file</button>
            <input type="file" name='dp'/>
        </div>
        <!-- <img id="userDp" src="" >-->
        
        <h5>Gender</h5>
        <label class="container" for="gender-m">Male
          <input type="radio" checked="checked" name="gender" value="m" id="gender-m"/>
          <span class="checkmark"></span>
        </label>
        <label class="container" for="gender-f">Female
          <input type="radio" name="gender" value="f" id="gender-f"/>
          <span class="checkmark"></span>
        </label>
        <h5>Optional</h5>
        <input type="text" id="f-name" name="f-name" placeholder="First Name" />
        <input type="text" id="l-name" name="l-name" placeholder="Last Name" />
        <input type="text" id="headline" name="headline" placeholder="Your Profile Headline"/>
        <textarea id="bio" name="bio" placeholder="What you want to tell people about yourself"></textarea>
        
        <input type="submit" class="button next" name="signup-submit" value="signup"/>
        
    </form>
    <hr />
</div>

< ?php include 'includes/footer.php'; ?> 

signup.inc.php

//signup.inc.php
< ?php

if (isset($_POST['signup-submit']))
{    
    require 'dbh.inc.php';
    
    $userName = $_POST['uid'];
    $email = $_POST['mail'];
    $password = $_POST['pwd'];
    $passwordRepeat  = $_POST['pwd-repeat'];
    $gender = $_POST['gender'];
    $headline = $_POST['headline'];
    $bio = $_POST['bio'];
    $f_name = $_POST['f-name'];
    $l_name = $_POST['l-name'];
    
    if (empty($userName) || empty($email) || empty($password) || empty($passwordRepeat))
    {
        header("Location: ../signup.php?error=emptyfields&uid=".$userName."&mail=".$email);
        exit();
    }
    else if (!filter_var($email, FILTER_VALIDATE_EMAIL) && !preg_match("/^[a-zA-Z0-9]*$/", $userName))
    {
        header("Location: ../signup.php?error=invalidmailuid");
        exit();
    }
    else if (!filter_var($email, FILTER_VALIDATE_EMAIL))
    {
        header("Location: ../signup.php?error=invalidmail&uid=".$userName);
        exit();
    }
    else if (!preg_match("/^[a-zA-Z0-9]*$/", $userName))
    {
        header("Location: ../signup.php?error=invaliduid&mail=".$email);
        exit();
    }
    else if ($password !== $passwordRepeat)
    {
        header("Location: ../signup.php?error=passwordcheck&uid=".$userName."&mail=".$email);
        exit();
    }
    else
    {
        // checking if a user already exists with the given username
        $sql = "select uidUsers from users where uidUsers=?;";
        $stmt = mysqli_stmt_init($conn);
        if (!mysqli_stmt_prepare($stmt, $sql))
        {
            header("Location: ../signup.php?error=sqlerror");
            exit();
        }
        else
        {
            mysqli_stmt_bind_param($stmt, "s", $userName);
            mysqli_stmt_execute($stmt);
            mysqli_stmt_store_result($stmt);
            
            $resultCheck = mysqli_stmt_num_rows($stmt);
            
            if ($resultCheck > 0)
            {
                header("Location: ../signup.php?error=usertaken&mail=".$email);
                exit();
            }
            else
            {
                $FileNameNew = 'default.png';
                require 'upload.inc.php';
                
                $sql = "insert into users(uidUsers, emailUsers, f_name, l_name, pwdUsers, gender, "
                        . "headline, bio, userImg) "
                        . "values (?,?,?,?,?,?,?,?,?)";
                $stmt = mysqli_stmt_init($conn);
                if (!mysqli_stmt_prepare($stmt, $sql))
                {
                    header("Location: ../signup.php?error=sqlerror");
                    exit();
                }
                else
                {
                    $hashedPwd = password_hash($password, PASSWORD_DEFAULT);
                    
                    mysqli_stmt_bind_param($stmt, "sssssssss", $userName, $email, $f_name, $l_name,
                            $hashedPwd, $gender,
                            $headline, $bio, $FileNameNew);
                    mysqli_stmt_execute($stmt);
                    mysqli_stmt_store_result($stmt);
                    
                    header("Location: ../signup.php?signup=success");
                    exit();
                }
            }
        }
    }    
    mysqli_stmt_close($stmt);
    mysqli_close($conn);    
}
else
{
    header("Location: ../signup.php");
    exit();
}

dbh.inc.php

//dbh.inc.php
< ?php

$serverName = "localhost";
$dBUsername = "root";    //Database username
$dBPassword = "root";    //Database password
$dBName = "loginsystem"; //Database servername

$conn = mysqli_connect($serverName, $dBUsername, $dBPassword, $dBName, 3306);

if (!$conn)
{
    die("Connection failed: ". mysqli_connect_error());
}

header.php

//header.php
< ?php
    session_start();
    require 'dbh.inc.php';

    $companyName = "PHP Login/Registration System";
    
    function strip_bad_chars( $input ){
        $output = preg_replace( "/[^a-zA-Z0-9_-]/", "", $input);
        return $output;
    }
?>  

< !DOCTYPE html>
<html>
    <head>
        <title>< ?php echo TITLE; ?></title>
        <link href="includes/styles.css" rel="stylesheet"/> 
        <link rel="shortcut icon" href="" />
    </head>
    <body id="final-example">
        
    <!-------     LOGIN / LOGOUT FORM               --------->
    
< ?php    
    if(isset($_SESSION['userId']))
    {
        echo '<img id="status" src="">';
    }
    else
    {
        echo '<img id="status" src=""/>';
    }
?>
        
    <div id="login">        
        < ?php 
            if(isset($_SESSION['userId']))
            {
                echo'<div style="text-align: center;">
                        <img id="userDp" src=./uploads/'.$_SESSION["userImg"].'/>
                        <h3>' . strtoupper($_SESSION['userUid']) . '</h3>
                        <a href="profile.php" class="button login">Profile</a>  
      <a href="edit-profile.php" class="button login">Edit Profile</a>
                        <a href="includes/logout.inc.php" class="button login">Logout</a>
                    </div>';
            }
            else
            {
                if(isset($_GET['error']))
                {
                    if($_GET['error'] == 'emptyfields')
                    {
                        echo '<p class="closed">*please fill in all the fields</p>';
                    }
                    else if($_GET['error'] == 'nouser')
                    {
                        echo '<p class="closed">*username does not exist</p>';
                    }
                    else if ($_GET['error'] == 'wrongpwd')
                    {
                        echo '<p class="closed">*wrong password</p>';
                    }
                    else if ($_GET['error'] == 'sqlerror')
                    {
                        echo '<p class="closed">*website error. contact admint to have it fixed</p>';
                    }
                }

                echo '<form method="post" action="includes/login.inc.php" id="login-form">
                    <input type="text" id="name" name="mailuid" placeholder="Username..."/>
                    <input type="password" id="password" name="pwd" placeholder="Password..."/>
                    <input type="submit" class="button next login" name="login-submit" value="Login"/>
                </form>
                <a href="signup.php" class="button previous">Signup</a>';               
            }
        ?>
    <!-------     LOGIN / LOGOUT FORM END           --------->
        <div class="wrapper">
            <div class="content">
</div></div></body></html>

login.inc.php

//login.inc.php
< ?php

if (isset($_POST['login-submit']))
{    
    require 'dbh.inc.php';
    
    $mailuid = $_POST['mailuid'];
    $password = $_POST['pwd'];
    
    if (empty($mailuid) || empty($password))
    {
        header("Location: ../index.php?error=emptyfields");
        exit();
    }
    else
    {
        $sql = "SELECT * FROM users WHERE uidUsers=?;";
        $stmt = mysqli_stmt_init($conn);
        
        if (!mysqli_stmt_prepare($stmt, $sql))
        {
            header("Location: ../index.php?error=sqlerror");
            exit();
        }
        else
        {
            mysqli_stmt_bind_param($stmt, "s", $mailuid);
            mysqli_stmt_execute($stmt);
            
            $result = mysqli_stmt_get_result($stmt);
            
            if($row = mysqli_fetch_assoc($result))
            {                
                $pwdCheck = password_verify($password, $row['pwdUsers']);
                if ($pwdCheck == false)
                {
                    header("Location: ../index.php?error=wrongpwd");
                    exit();
                }
                else if($pwdCheck == true)
                {
                    session_start();
                    $_SESSION['userId'] = $row['idUsers'];
                    $_SESSION['userUid'] = $row['uidUsers'];
                    $_SESSION['emailUsers'] = $row['emailUsers'];
                    $_SESSION['f_name'] = $row['f_name'];
                    $_SESSION['l_name'] = $row['l_name'];
                    $_SESSION['gender'] = $row['gender'];
                    $_SESSION['headline'] = $row['headline'];
                    $_SESSION['bio'] = $row['bio'];
                    $_SESSION['userImg'] = $row['userImg'];
                    
                    header("Location: ../index.php?login=success");
                    exit();
                }
                else
                {
                    header("Location: ../index.php?error=wrongpwd");
                    exit();
                }
            }
            else
            {
                header("Location: ../index.php?error=nouser");
                exit();
            }
        }
    }
}
 else 
{
    header("Location: ../index.php");
    exit();
}

logout.inc.php

//logout.inc.php
< ?php
    session_start();
    session_unset();
    session_destroy();
    header("Location: ../index.php");

edit-profile.php

//edit-profile.php
< ?php
    define(TITLE, "Edit Profile");
    include 'includes/header.php';
    
    if (!isset($_SESSION['userId']))
    {
        header("Location: index.php");
        exit();
    }    
?>
<div style="text-align: center">
    <img id="userDp" src=<?php echo "./uploads/".$_SESSION['userImg']; ?/> >
 
    <h1>< ?php echo strtoupper($_SESSION['userUid']); ?></h1>
</div>

< ?php
        $userName = '';
        $email = '';
    
        if(isset($_GET['error']))
        {
            if($_GET['error'] == 'emptyemail')
            {
                echo '<p class="closed">*Profile email cannot be empty';
                $email = $_GET['mail'];
            }
            else if ($_GET['error'] == 'invalidmail')
            {
                echo '<p class="closed">*Please enter a valid email</p>';
            }
            else if ($_GET['error'] == 'emptyoldpwd')
            {
                echo '<p class="closed">*You must enter the current password to change it</p>';
            }
            else if ($_GET['error'] == 'emptynewpwd')
            {
                echo '<p class="closed">*Please enter the new password</p>';
            }
            else if ($_GET['error'] == 'emptyreppwd')
            {
                echo '<p class="closed">*Please confirm new password</p>';
            }
            else if ($_GET['error'] == 'wrongpwd')
            {
                echo '<p class="closed">*Current password is wrong</p>';
            }
            else if ($_GET['error'] == 'samepwd')
            {
                echo '<p class="closed">*New password cannot be same as old password</p>';
            }
            else if ($_GET['error'] == 'passwordcheck')
            {
                echo '<p class="closed">*Confirmation password is not the same as the new password</p>';
            }
        }
        else if (isset($_GET['edit']) == 'success')
        {
            echo '<p class="open">*Profile Updated Successfully</p>';
        }
?>

<form action="includes/profileUpdate.inc.php" method='post' id="contact-form" enctype="multipart/form-data">

        <h5>Personal Information</h5>
        
        <label for="email">Email</label>
        <input type="email" id="email" name="email" placeholder="email" 
               value=<?php echo $_SESSION['emailUsers']; ?/>><br />
                
        <label>Full Name</label>
        <input type="text" id="f-name" name="f-name" placeholder="First Name" 
               value=<?php echo $_SESSION['f_name']; ?/>>
        <input type="text" id="l-name" name="l-name" placeholder="Last Name" 
               value=<?php echo $_SESSION['l_name']; ?/>>
        
        <label class="container" for="gender-m">Male
          <input type="radio" name="gender" value="m" id="gender-m"
                 <?php if ($_SESSION['gender'] == 'm'){ ?/> 
                 checked="checked"
                 < ?php } ?>>
          <span class="checkmark"></span>
        </label>
        <label class="container" for="gender-f">Female
          <input type="radio" name="gender" value="f" id="gender-f"
                 <?php if ($_SESSION['gender'] == 'f'){ ?/> 
                 checked="checked"
                 < ?php } ?>>
          <span class="checkmark"></span>
        </label>
       
        <label for="headline">Profile Headline</label>
        <input type="text" id="headline" name="headline" placeholder="Your Profile Headline"
               value='<?php echo $_SESSION['headline']; ?/>'><br />
        
        <label for="bio">Profile Bio</label>
        <textarea id="bio" name="bio" maxlength="5000"
            placeholder="What you want to tell people about yourself" 
            >< ?php echo $_SESSION['bio']; ?></textarea>
        
        <h5>Change Password</h5>
        <input type="password" id="old-pwd" name="old-pwd" placeholder="current password"/><br />
        <input type="password" id="pwd" name="pwd" placeholder="new password"/>
        <input type="password" id="pwd-repeat" name="pwd-repeat" placeholder="repeat new password"/>
        
        <h5>Profile Picture</h5>
        <div class="upload-btn-wrapper">
            <button class="btn">Upload a file</button>
            <input type="file" name='dp' value=<?php echo $_SESSION['userImg']; ?/>>
        </div>
        
        <input type="submit" class="button next" name="update-profile" value="Update Profile"/>
        
    </form>
<hr />

< ?php include 'includes/footer.php'; ?>

profileUpdate.inc.php

//profileUpdate.inc.php
< ?php
session_start();

if (isset($_POST['update-profile']))
{    
    require 'dbh.inc.php';   
    
    $email = $_POST['email'];
    $f_name = $_POST['f-name'];
    $l_name = $_POST['l-name'];
    $oldPassword = $_POST['old-pwd'];
    $password = $_POST['pwd'];
    $passwordRepeat  = $_POST['pwd-repeat'];
    $gender = $_POST['gender'];
    $headline = $_POST['headline'];
    $bio = $_POST['bio'];
    
    if (empty($email))
    {
        header("Location: ../edit-profile.php?error=emptyemail");
        exit();
    }
    else if (!filter_var($email, FILTER_VALIDATE_EMAIL))
    {
        header("Location: ../edit-profile.php?error=invalidmail");
        exit();
    }
    else
    {
        $sql = "SELECT * FROM users WHERE uidUsers=?;";
        $stmt = mysqli_stmt_init($conn);
        
        if (!mysqli_stmt_prepare($stmt, $sql))
        {
            header("Location: ../edit-profile.php?error=sqlerror");
            exit();
        }
        else
        {
            mysqli_stmt_bind_param($stmt, "s", $_SESSION['userUid']);
            mysqli_stmt_execute($stmt);
            
            $result = mysqli_stmt_get_result($stmt);           
            
            if($row = mysqli_fetch_assoc($result))
            {
                $pwdChange = false;
                
                if( (!empty($password) || !empty($passwordRepeat)) && empty($oldPassword))
                {
                    header("Location: ../edit-profile.php?error=emptyoldpwd");
                    exit();
                }
                if( empty($password) && empty($passwordRepeat) && !empty($oldPassword))
                {
                    header("Location: ../edit-profile.php?error=emptynewpwd");
                    exit();
                }
                if (!empty($password) && empty($passwordRepeat) && !empty($oldPassword))
                {
                    header("Location: ../edit-profile.php?error=emptyreppwd");
                    exit();
                }
                if (empty($password) && !empty($passwordRepeat) && !empty($oldPassword))
                {
                    header("Location: ../edit-profile.php?error=emptynewpwd");
                    exit();
                }
                if (!empty($password) && !empty($passwordRepeat) && !empty($oldPassword))
                {
                    $pwdCheck = password_verify($oldPassword, $row['pwdUsers']);
                    if ($pwdCheck == false)
                    {
                        header("Location: ../edit-profile.php?error=wrongpwd");
                        exit();
                    }
                    if ($oldPassword == $password)
                    {
                        header("Location: ../edit-profile.php?error=samepwd");
                        exit();
                    }
                    if ($password !== $passwordRepeat)
                    {
                        header("Location: ../edit-profile.php?error=passwordcheck&mail=".$email);
                        exit();
                    }
                    $pwdChange = true;
                }
                
                    $FileNameNew = $_SESSION['userImg'];
                    require 'upload.inc.php';
                    
                    $sql = "UPDATE users "
                            . "SET f_name=?, "
                            . "l_name=?, "
                            . "emailUsers=?, "
                            . "gender=?, "
                            . "headline=?, "
                            . "bio=?, "
                            . "userImg=? ";
                    
                    if ($pwdChange)
                    {
                        $sql .= ", pwdUsers=? "
                                . "WHERE uidUsers=?;";
                    }
                    else
                    {
                        $sql .= "WHERE uidUsers=?;";
                    }
                                     
                    $stmt = mysqli_stmt_init($conn);
                    
                    if (!mysqli_stmt_prepare($stmt, $sql))
                    {
                        header("Location: ../edit-profile.php?error=sqlerror");
                        exit();
                    }
                    else
                    {
                        if ($pwdChange)
                        {
                            $hashedPwd = password_hash($password, PASSWORD_DEFAULT);
                            mysqli_stmt_bind_param($stmt, "sssssssss", $f_name, $l_name, $email,
                                $gender, $headline, $bio, 
                                $FileNameNew, $hashedPwd, $_SESSION['userUid']);
                        }
                        else
                        {
                            mysqli_stmt_bind_param($stmt, "ssssssss", $f_name, $l_name, $email,
                                $gender, $headline, $bio, 
                                $FileNameNew, $_SESSION['userUid']);
                        }
                           
                        mysqli_stmt_execute($stmt);
                        mysqli_stmt_store_result($stmt);

                        $_SESSION['emailUsers'] = $email;
                        $_SESSION['f_name'] = $f_name;
                        $_SESSION['l_name'] = $l_name;
                        $_SESSION['gender'] = $gender;
                        $_SESSION['headline'] = $headline;
                        $_SESSION['bio'] = $bio;
                        $_SESSION['userImg'] = $FileNameNew;

                        header("Location: ../edit-profile.php?edit=success");
                        exit();
                    }
            }
            else 
            {
                header("Location: ../edit-profile.php?error=sqlerror");
                exit();
            }
        }
    }
    
    mysqli_stmt_close($stmt);
    mysqli_close($conn);    
}
else
{
    header("Location: ../edit-profile.php");
    exit();
}

The source code can be downloaded from the below link.

Ravi Bandakkanavar

A Techie, Blogger, Web Designer, Programmer by passion who aspires to learn new Technologies every day. A founder of Krazytech. It's been 10+ years since I am publishing articles and enjoying every bit of it. I want to share the knowledge and build a great community with people like you.

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View Comments

  • I can't believe It's working 10000000% without any error. Thank you a thousand time. God bless you. Its amazing keep it up. again thank you for this unthinkable work and thanks for giving this source code for us for 100% Free.

    • I am glad it helped you Vishal :)
      Thanks for valuing our stuff and taking out your time to express your views here.

  • ....Please that's not the answer am looking for? The index is blocking the logging veiw how can I remove it for logged in users. If I try to edit the code, I get error please just write a comment on how I can change that thanks in advance.....

    • Hi,

      What is your requirement? Do you not wish to have index.php?

      Do you want to remove this - "Let us walk you through Complete Login and Registration Application using PHP and MySQL" ?

  • Signing up for the same email for the second time does not generate an error “this email is already in use”. and re-register from the same post. how can we fix this?

    • Hi Huseyn,
      Could you please check in your database whether the email(username) that you are using is already present in your database?

        • That's correct. It is working as per the logic. If you check our conditions, only the duplicate check is done for userName.

          / checking if a user already exists with the given username
          $sql = "select uidUsers from users where uidUsers=?;";

  • Warning: mysqli_connect(): (HY000/1045): Access denied for user 'Email'@'localhost' (using password: YES) in C:\xampp\htdocs\Complete-Login-and-Registration\includes\dbh.inc.php on line 8
    Connection failed: Access denied for user 'Email'@'localhost' (using password: YES)
    i got these kind of msg, my DB name are correct as in MYSQL.. What I need to do?

    • Hi Sanju,

      The username and passwords that you are using in the application are wrong.
      Try logging into MySQL console using the same username and password. Please validate your credentials.

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Ravi Bandakkanavar

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