An instance of the PHP code _php for a burglar-proof connection

Source: Internet
Author: User
$ADMIN [Defaulturl] =; Address returned by hotlinking
$okaysites = Array ("", ""); White List
$ADMIN [Url_1] =; Download Location 1
$ADMIN [url_2] = "";//download location 2, and so on

$reffer = $HTTP _referer;
if ($reffer) {
$yes = 0;
while (the list ($domain, $subarray) = each ($okaysites)) {
if (Ereg ($subarray, "$reffer")) {
$yes = 1;
$theu = "url". " _"." $site ";
if ($ADMIN [$theu] and $yes = 1) {
Header ("Location: $ADMIN [$theu]/$file");
} else {
Header ("Location: $ADMIN [Defaulturl]");
} else {
Header ("Location: $ADMIN [Defaulturl]");


How to: Save the above code as dao4.php,
For example, test Validatecode.rar in the site Http://,
The download connection is represented by the following code.

File name? site=1&file= files

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