本文實(shí)例講述了php簡(jiǎn)單防盜鏈實(shí)現(xiàn)方法。分享給大家供大家參考。具體如下：

<?php

$ADMIN = array(

'defaulturl'=> 'http://blog.qita.in/images/banner-header.gif',

//盜鏈返回的地址

'url_1' => 'http://blog.qita.in/file',

'url_2' => 'http://blog.qita.in/file1',

);

$okaysites = array(

'http://qita.in',

'http://blog.qita.in', //白名單

'http://blog.qita.in/1.html',

);

$reffer = $_SERVER['HTTP_REFERER'];

if ($reffer) {

$yes = 0;

while (list($domain, $subarray) = each($okaysites)) {

if (ereg($subarray, "$reffer")) {

$yes = 1;

}

}

$theu = 'url_' . $_GET['site'];

$file = $_GET['file'];

if ($ADMIN[$theu] and $yes == 1) {

header("Location: $ADMIN[$theu]/$file");

} else {

header("Location: $ADMIN[defaulturl]");

}

} else {

header("Location: $ADMIN[defaulturl]");

}

print_r($_SERVER['HTTP_REFERER']);

?>

希望本文所述對(duì)大家的php程序設(shè)計(jì)有所幫助。