+2  A: 

If it's just a plain string like what you posted...

    $url = "accountid=*** type=prem servertime=1247000294 addtime=****** validuntil=**** username=8 directstart=1 protectfiles=0";

    $temp = explode(' ', $url);
    foreach($temp as $k => $v)
    {
        $temp[$k] = explode('=', $v);
        $data[$temp[$k][0]] = $temp[$k][1];
    }
    unset($temp);

    $data["accountid"] // stores the account ID, equal to "***"
    $data["type"]      // stores the type, equal to "prem"
    //etc....

It would be slightly different if it was actually a query string, which could be likely.

Ian Elliott