PHP简单防盗链

<?php

$admin[defaulturl] = "http://siyizhu.com/404.htm";//盗链返回的地址
$okaysites = array("http://siyizhu.com/","http://www.siyizhu.com"); //白名单
$admin[url_1] = "http://siyizhu.com/temp/download/";//下载地点1
$admin[url_2] = "";//下载地点2，以此类推

$reffer = $http_referer;
if($reffer) {
$yes = 0;
while(list($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]");
}

?>  
 

以上代码测试可用