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<?php
    session_start();
 
    //DB configuration Constants
    define('_HOST_NAME_', '127.0.0.1');
    define('_USER_NAME_', 'root');
    define('_DB_PASSWORD', '');
    define('_DATABASE_NAME_', 'ads_database');
 
    //PDO Database Connection
    try {
        $databaseConnection = new PDO('mysql:host='._HOST_NAME_.';dbname='._DATABASE_NAME_, _USER_NAME_, _DB_PASSWORD);
        $databaseConnection->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
    } catch(PDOException $e) {
        echo 'ERROR: ' . $e->getMessage();
    }
 
    if(isset($_POST['submit'])){
        $errMsg = '';
        //username and password sent from Form
        $username = trim($_POST['username']);
        $password = trim($_POST['password']);
 
        if($username == '')
            $errMsg .= 'You must enter your Username<br>';
 
        if($password == '')
            $errMsg .= 'You must enter your Password<br>';
 
 
        if($errMsg == ''){
            $records = $databaseConnection->prepare('SELECT nom_user, pass_user FROM  user WHERE nom_user = :username');
            $records->bindParam(':username', $username);
            $records->execute();
            $results = $records->fetch(PDO::FETCH_ASSOC);
            if(count($results) > 0 && password_verify($password, $results['pass_user'])){
                $_SESSION['username'] = $results['username'];
                header('location:dashboard.php');
                exit;
            }else{
                $errMsg .= 'Username and Password are not found<br>';
            }
        }
    }
 
?>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Login Page PHP Script</title>
    <style type="text/css">
    body
    {
        font-family:Arial, Helvetica, sans-serif;
        font-size:14px;
    }
    label
    {
        font-weight:bold;
        width:100px;
        font-size:14px;
    }
    .box
    {
        border:1px solid #006D9C;
        margin-left:10px;
        width:60%;
    }
    .submit{
        border:1px solid #006D9C;
        background-color:#006D9C;
        color:#FFFFFF;
        float:right;
        padding:2px;
    }
    </style>
</head>
<body bgcolor="#FFFFFF">
 
    <div align="center">
        <div class="tLink"><strong>Login Detail:</strong></div><br />
        <div style="width:300px; border: solid 1px #006D9C; " align="left">
            <?php
                if(isset($errMsg)){
                    echo '<div style="color:#FF0000;text-align:center;font-size:12px;">'.$errMsg.'</div>';
                }
            ?>
            <div style="background-color:#006D9C; color:#FFFFFF; padding:3px;"><b>Login</b></div>
            <div style="margin:30px">
                <form action="" method="post">
                    <label>Username  :</label><input type="text" name="username" class="box"/><br /><br />
                    <label>Password  :</label><input type="password" name="password" class="box" /><br/><br />
                    <input type="submit" name='submit' value="Submit" class='submit'/><br />
                </form>
            </div>
        </div>
    </div>
</body>
</html> | 
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