MD5 sensitive case?

[Giampy75]

no..infatti è questo che non mi suona..ecco lo script..

function randomPassword () {
$length ="8"; // the length of the password required
$possible = '23456789'
. 'abcdefghijkmnpqrstuvwxyz'
. 'ABCDEFGHJKLMNPQRSTUVWXYZ';
$str ="";
while (strlen($str) < $length) {
$str.=substr($possible, (rand() % strlen($possible)),1);
}
return($str);
}

$password=trim(randomPassword());
$request="update utenti set password=MD5('".$password."') where username='". $_POST["username"] ."' and email='".$_POST["email"]."'";

$result = mysql_query ($request,$link);


mi sapete aiutare??