Password Generator and Random Number String Function

We want to Random Number String & Password Generator Function using any technology ( like php, jsp, asp, java)

Random Number String generator function

function r($len){
$keyset = “abcdefghijklmnopqrstuvwxyz0123456789?;
$randkey = “”;
for ($i=0; $i<$len; $i++)
{
$randkey = $randkey . $keyset[mt_rand(0, strlen($keyset)-1)];
}
return $randkey;
}

Strong Password generator function

function generatePassword($length=9, $strength=0) {
$vowels = ‘aeuy’;
$consonants = ‘bdghjmnpqrstvz’;
if ($strength & 1) {
$consonants .= ‘BDGHJLMNPQRSTVWXZ’;
}
if ($strength & 2) {
$vowels .= “AEUY”;
}
if ($strength & 4) {
$consonants .= ’23456789';
}
if ($strength & 8) {
$consonants .= ‘@#$%’;
}

$password = ”;
$alt = time() % 2;
for ($i = 0; $i < $length; $i++) {
if ($alt == 1) {
$password .= $consonants[(rand() % strlen($consonants))];
$alt = 0;
} else {
$password .= $vowels[(rand() % strlen($vowels))];
$alt = 1;
}
}
return $password;
}