Untitled

<html>
<head>
</head>
<body>
<form action="Access.php" method="POST">
<input type="text" name="Username" placeholder="Insert your username" required></input>
<input type="password" name="Userpassword" placeholder="Insert your password" required></input>
<input type="submit" value="Log in" />
</form>
</body>
</html>

<html>
<head>
</head>
<body>
<?php
$Username=$_POST['Username'];
$Userpassword=$_POST['Userpassword'];
$servername="localhost";
$dbUsername="username"; //<-- Here, substitude username with the username you use to log into your database
$dbPassword="password"; //<-- Same of $dbUsername
$databasename = "my_database"; //<-- substitude with your database name

$Username = stripcslashes($Username);
$Userpassword= stripcslashes($Userpassword);
$Username=mysql_real_escape_string($Username);
$Userpassword=mysql_real_escape_string($Userpassword);

mysql_connect($servername, $dbUsername, $dbPassword);
mysql_select_db=($databasename);

$result=mysql_query("SELECT * FROM users WHERE Username='$Username' AND Userpassword='$Userpassword'") or die ("Damn, something didn't work! Error: ".mysql_error());

$row = mysql_fetch_array($result);

if ($row['Username'] == $Username && $row['Userpassword'] == $Userpassword){
echo "Log in success, you'll be redirect into your profile page
      <meta http-equiv="refresh" content="8;URL=UserProfilePage.php?ID_User=".$row['ID_User'].""/>";
} else {
    echo "The username $Username doesn't exist or you used a wrong password";
}
?>
</body>
</html>