case sensitive login

Hi,

I would like to put a case sensitive login,please could you help me?

Thx

 

Are you using a database?

If so, compare the pulled username or password with the given one. MySQL searches are case-insensitive by default. You could do something like:

$query = mysql_query("
    SELECT *
    FROM users
    WHERE
        username = '". mysql_real_escape_string($_POST['username']) ."' AND
        password = '". mysql_real_escape_string($_POST['password']) ."'
    LIMIT
        1
") OR die(mysql_error());

if ($userinfo = mysql_fetch_array($query))
{
    if ($userinfo['username'] == $_POST['username'] AND
        $userinfo['password'] == $_POST['password']
    )
    {
         // Correct login
    }
}

// Incorrect login

PHP: