PHP SSO for ASP service

function SSO($key,$uid){
$lenth=32;
$aZ09 = array_merge(range(‘A’, ‘Z’), range(‘a’, ‘z’),range(0, 9));
$randphrase =”;
for($c=0;$c < $lenth;$c++) {
$randphrase .= $aZ09[mt_rand(0,count($aZ09)-1)];
}
//echo “Key: “.$key.”
“;
//echo “Phrase: “.$randphrase.”
“;
//Append key onto phrase end
$randkey=$randphrase.$key;
// SHA512 Hash
$toencode= utf8_encode($randkey);
// Pass 3rd, optional parameter as TRUE to output raw binary data
$output = hash(“sha512″, $toencode, true);
//base 64 encode the hash binary data
$sso = base64_encode($output);
$length = mb_strlen($sso);
$characters = 2;
$start = $length – $characters;
$last2 = substr($sso , $start ,$characters);
// Yes, Strip the extra ==
if($last2 == “==”)
{$ssocode = substr($sso,0,-2);}
// No, just pass the value to the next step
else{$ssocode=$sso;}
// Prepend the random phrase to the encrypted code.
$ssocode = $randphrase.$ssocode;
//echo “SSO: “.$ssocode.”
“;

//Use first 22 charecters of random.
$shortphrase=substr($randphrase,0,22);
//Append uid & key onto shortened phrase end
$uidv=$uid.$shortphrase.$key;
// SHA512 Hash
$idencode= utf8_encode($uidv);
// Pass 3rd, optional parameter as TRUE to output raw binary data
$idoutput = hash(“sha512″, $idencode, true);
// Base64 Encode of hash binary data
$idssoe = base64_encode($idoutput);
//Determine if we need to strip the zeros
$idlength = mb_strlen($idssoe);
$idcharacters = 2;
$idstart = $idlength – $idcharacters;
$idlast2 = substr($idssoe , $idstart ,$idcharacters);
if($idlast2 == “==”)
{$ssouidv = substr($idssoe,0,-2);}
// No, just pass the value to the next step
else{$ssouidv=$idssoe;}
//echo “SSOID: “.$ssouidv;

return array($ssocode, $ssouidv);} Solved…