Question

Is there a way to make the username part work for both upper and lower case, for example if my username were robert if you entered Robert it would work as well? Attached is a copy of my login script.

<?php

session_start();

$username = $_POST['username'];
$password = $_POST['password'];

if ($username&&$password)
{

$connect = mysql_connect("localhost","*i*****5_******","*******") or die ("Couldn't Connect"); //host,username,password
mysql_select_db("virtua15_gateway") or die ("Could not find database");

$query = mysql_query("SELECT * FROM Users WHERE username='$username'");
$numrows = mysql_num_rows($query);
if ($numrows!=0)
{
    while ($row = mysql_fetch_assoc($query))
    {
            $dbusername = $row['username'];
            $dbpassword = $row['password'];
    }
    if ($username==$dbusername&&md5($password)==$dbpassword)
    {
     header( 'Location: index2.php' );
     $_SESSION['username']=$dbusername;
    }
    else
        echo "incorrect username and password";
}
   else
     die ("This user does not exist");

}
else
    die("Please enter a username and a password")


?>

Answer 1

hi try strtolower() function.

$username = strtolower($_POST['username']);

Check this http://php.net/manual/en/function.strtolower.php