I am posting the usage below.

<?

//for url variables
$req = new requestGet();
echo "Int:".$req->getVarInt("id")."<br />";
echo "Alpha:".$req->getVarAlpha("name",4)."<br />";

//for form variables
$req = new requestPost();
echo "Int:".$req->getVarInt("id")."<br />";
echo "Alpha:".$req->getVarAlpha("name",4)."<br />";

//for cookies
$req = new requestCookie();
echo "Int:".$req->getVarInt("id")."<br />";
echo "Alpha:".$req->getVarAlpha("name",4)."<br />";

//for your own variables, set your values to an item in an array and you can modify the array

$filter["id"]=4;
$filter["name"]="Ali";
$req = new requestFilter($filter);
echo "Int:".$req->getVarInt("id")."<br />";
echo "Alpha:".$req->getVarAlpha("name",4)."<br />";

?>
JM
18-May-2005 04:08
The $_SERVER['PHP_AUTH_*'] variables are not available in safe mode.  See http://www.php.net/features.http-auth
www dot php dot net at webdevelopers dot cz
12-May-2005 09:01
Simple function that selects "best" language for the user from the list of available languages:

function chooseLang($availableLangs) {
    $pref=array();
    foreach(split(',', $_SERVER["HTTP_ACCEPT_LANGUAGE"]) as $lang) {
        if (preg_match('/^([a-z]+).*?(?:;q=([0-9.]+))?/i', $lang.';q=1.0', $split)) {
            $pref[sprintf("%f%d", $split[2], rand(0,9999))]=strtolower($split[1]);       
        }
    }
    krsort($pref);
    return array_shift(array_merge(array_intersect($pref, $availableLangs), $availableLangs));
}
 
echo 'BESTLANG: '.chooseLang(array('cs', 'sk', 'ru', 'en'));

Daniel "elixon" Sevcik
exaton at free dot fr
07-May-2005 02:23
With the arrival of the Google Web Accelerator, the problem of keeping track of users through $_SERVER['REMOTE_ADDR'] (for a much shorter while than with cookies) has reared its ugly head anew.

For those confronted with this issue, remember that Google implements the $_SERVER['HTTP_X_FORWARDED_FOR'] header giving the IP address of the connection that it proxies.

Hope this helps...
inbox at tanasity dot com
13-Apr-2005 09:23
Under Windows 2000, running IIS and PHP 4.3.10, $_SERVER['SCRIPT_NAME'] is not available, however $_SERVER['SCRIPT_FILENAME'] is present and seems to contain the same information.
javalizard at mac dot com
11-Apr-2005 07:02
My web host server will give my php the user preferred languages out over the order.  This means that I had to write a function for ordering the languages based upon their "q" value (rank from 1..0, 1 being the most preferred).  If you want an ordered list of user preferred languages use this function: