wordpress防止网站被镜像四个方法

第一种：拆分域名链接与镜像站比对，然后用img标签src空值触发onerror来执行js比对，比对失败则跳转回源站。代码如下：（复制粘贴到主题的functions.php最后一个?>之前，代码出现的域名换成自己的域名）

add_action('wp_footer','deny_mirrored_websites');
function deny_mirrored_websites(){
    $currentDomain = 'baidu." + "com'; //此处自行拆分一下自己的域名即可
    echo '<img style="display:none" src=" " onerror=\'var str1="'.$currentDomain.'";str2="docu"+"ment.loca"+"tion.host";str3=eval(str2);if( str1!=str3 ){ do_action = "loca" + "tion." + "href = loca" + "tion.href" + ".rep" + "lace(docu" +"ment"+".loca"+"tion.ho"+"st," + "\"' . $currentDomain .'\"" + ")";eval(do_action) }\' />';
}

第二种：html静态版本，是上面的变种，只是把上面卸载js中的用写在静态代码里了。将代码中出现的域名换成你自己的域名

<img style="display:none" src=" " onerror='var currentDomain="baidu." + "com"; var str1=currentDomain; str2="docu"+"ment.loca"+"tion.host"; str3=eval(str2) ;if( str1!=str3 ){ do_action = "loca" + "tion." + "href = loca" + "tion.href" + ".rep" + "lace(docu" +"ment"+".loca"+"tion.ho"+"st," + "currentDomain" + ")";eval(do_action) }' />

第三种：通过php判断UA为空或含有PHP的请求，否则弹出提示并禁止打开

/**
* WordPress 禁止UA为空或含有PHP的请求
**/
if(!is_admin()) {
add_action('init', 'deny_mirrored_request', 0);
}
function deny_mirrored_request()
{
$ua = $_SERVER['HTTP_USER_AGENT'];
if(!$ua || preg_match('/PHP/i', $ua)) {
header("Content-type: text/html; charset=utf-8");
wp_die('请勿采集本站，因为采集的站长木有小JJ!');
}
}

第四种：判断更多请求样式

add_action('wp_head', 'deny_mirrored_request', 0);
function deny_mirrored_request()
{
$ua = $_SERVER['HTTP_USER_AGENT'];
$now_ua = array('FeedDemon ','BOT/0.1 (BOT for JCE)','CrawlDaddy ','Java','Feedly','UniversalFeedParser','ApacheBench','Swiftbot','ZmEu','Indy Library','oBot','jaunty','YandexBot','AhrefsBot','MJ12bot','WinHttp','EasouSpider','HttpClient','Microsoft URL Control','YYSpider','jaunty','Python-urllib','lightDeckReports Bot','PHP');
if(!$ua) {
header("Content-type: text/html; charset=utf-8");
wp_die('请勿采集本站，采集者木有小JJ！');
}else{
    foreach($now_ua as $value )
    if(eregi($value,$ua)) {
    header("Content-type: text/html; charset=utf-8");
    wp_die('请勿采集本站，采集者木有小JJ！');
    }
}
}