反盗链类

<?php$ADMIN[defaulturl] = "test.gif";//盗链返回的地址$okaysites = array("http://www.deographics.com/","http://deographics.com/");  //白名单  $ADMIN[url_1] = "http://deographics.com/";//下载地点1$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]");}