经常看到一些博客点击外链跳转到其他网站上的时候都会有一个跳转页面，很是漂亮。据说是有利于SEO，保护站点权重，不过个人只是觉得好看、高逼格便加上了 。网上相关的源代码很多，只是代码使用的方法不太详细，对于很多新手小白可能并不友好，借着这次博客折腾我将把使用方法尽可能地详细说明，希望能够帮助新人快速地使用上这个跳转功能。
GO 跳转页面代码
将一下代码复制并保存为一个 index.php 文件丢到网站根目录的 go 文件夹下。
<?php
/**
* 自动跳转页面
* @copyright (c) Emlog All Rights Reserved
*/
//自定义跳转地址
$cars = array(
array("aliyun",'https://promotion.aliyun.com/ntms/act/ambassador/sharetouser.html?userCode=e2f3mruo&utm_source=e2f3mruo'),
array("trustutn",'http://c.trustutn.org/s/caojiefeng.com'),
array("gfvps",'https://www.caojiefeng.com'),
array("360scan",'http://webscan.360.cn/index/checkwebsite/url/www.caojiefeng.com')
);
if(strlen($_SERVER['REQUEST_URI']) > 384 ||
strpos($_SERVER['REQUEST_URI'], "eval(") ||
strpos($_SERVER['REQUEST_URI'], "base64")) {
@header("HTTP/1.1 414 Request-URI Too Long");
@header("Status: 414 Request-URI Too Long");
@header("Connection: Close");
@exit;
}
//通过QUERY_STRING取得完整的传入数据，然后取得url=之后的所有值，兼容性更好
$t_url = htmlspecialchars(preg_replace('/^url=(.*)$/i','$1',$_SERVER["QUERY_STRING"]));
//此处可以自定义一些特别的外链，不需要可以删除以下5行
foreach($cars as $k=>$val){
if($t_url==$val[0] ) {
$t_url = $val[1];
$t_vip = 1;
}
}
//数据处理
if(!empty($t_url)) {
//判断取值是否加密
if ($t_url == base64_encode(base64_decode($t_url))) {
$t_url = base64_decode($t_url);
}
//对取值进行网址校验和判断
preg_match('/^(http|https|thunder|qqdl|ed2k|Flashget|qbrowser):\/\//i',$t_url,$matches);
if($matches){
$url=$t_url;
$title='页面加载中,请稍候...';
} else {
preg_match('/\./i',$t_url,$matche);
if($matche){
$url='http://'.$t_url;
$title='页面加载中,请稍候...';
} else {
$url = 'http://'.$_SERVER['HTTP_HOST'];
$title='参数错误，正在返回首页...';
}
}
} else {
$title = '参数缺失，正在返回首页...';
$url = 'http://'.$_SERVER['HTTP_HOST'];
}
?>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<meta name="viewport" content="width=device-width">
<meta name="robots" content="noindex, nofollow" />
<noscript><meta http-equiv="refresh" content="1;url='<?php echo $url;?>';"></noscript>
<meta charset="UTF-8">
<!--[if IE 8]>
<style>
.ie8 .alert-circle,.ie8 .alert-footer{display:none}.ie8 .alert-box{padding-top:75px}.ie8 .alert-sec-text{top:45px}
</style>
<![endif]-->
<title><?php echo $title;?></title>
<style>
body{margin:0;padding:0;background:#E6EAEB;font-family:Arial,'微软雅黑','宋体',sans-serif}.main{position:absolute;left:calc(50% - 200px);top:calc(50% - 13em)}.alert-box{display:none;position:relative;margin:auto;padding:180px 85px 22px;border-radius:10px 10px 0 0;background:#FFF;box-shadow:5px 9px 17px rgba(102,102,102,.75);width:286px;color:#FFF;text-align:center}.alert-box p{margin:0}.alert-circle{position:absolute;top:-50px;left:111px}.alert-sec-circle{stroke-dashoffset:0;stroke-dasharray:735;transition:stroke-dashoffset 1s linear}.alert-sec-text{position:absolute;top:11px;left:190px;width:76px;color:#000;font-size:68px}.alert-sec-unit{font-size:34px}.alert-body{margin:35px 0}.alert-head{color:#242424;font-size:28px}.alert-concent{margin:25px 0 14px;color:#7B7B7B;font-size:18px}.alert-concent p{line-height:27px}.alert-btn{display:block;border-radius:10px;background-color:#4AB0F7;height:55px;line-height:55px;width:286px;color:#FFF;font-size:20px;text-decoration:none;letter-spacing:2px}.alert-btn:hover{background-color:#6BC2FF}.alert-footer{margin:0 auto;height:42px;width:120px}.alert-footer-icon{float:left}.alert-footer-text{float:left;border-left:2px solid #EEE;padding:3px 0 0 5px;height:40px;color:#0B85CC;font-size:12px;text-align:left}.alert-footer-text p{color:#7A7A7A;font-size:22px;line-height:18px}
</style>
</head>
<body class="ie8" style="">
<div class="main">
<div id="js-alert-box" class="alert-box" style="display:block">
<svg class="alert-circle" width="234" height="234"><circle cx="117" cy="117" r="108" fill="#FFF" stroke="#43AEFA" stroke-width="17"></circle><circle id="js-sec-circle" class="alert-sec-circle" cx="117" cy="117" r="108" fill="transparent" stroke="#F4F1F1" stroke-width="18" transform="rotate(-90 117 117)" style="stroke-dashoffset:-514px"></circle><text class="alert-sec-unit" x="100" y="172" fill="#BDBDBD">秒</text></svg>
<div id="js-sec-text" class="alert-sec-text">
3
</div>
<div class="alert-body">
<div id="js-alert-head" class="alert-head">
<?php echo $title;?>
</div>
<div class="alert-concent">
<p>
一万年太久，只争朝夕
</p>
</div>
<a id="js-alert-btn" class="alert-btn" href="<?php echo $url;?>">立即前往</a>
</div>
<div class="alert-footer clearfix">
<svg width="46px" height="42px" class="alert-footer-icon"><circle fill-rule="evenodd" clip-rule="evenodd" fill="#7B7B7B" stroke="#DEDFE0" stroke-width="2" stroke-miterlimit="10" cx="21.917" cy="21.25" r="17"></circle><path fill="#FFF" d="M22.907,27.83h-1.98l0.3-2.92c-0.37-0.22-0.61-0.63-0.61-1.1c0-0.71,0.58-1.29,1.3-1.29s1.3,0.58,1.3,1.29 c0,0.47-0.24,0.88-0.61,1.1L22.907,27.83z M18.327,17.51c0-1.98,1.61-3.59,3.59-3.59s3.59,1.61,3.59,3.59v2.59h-7.18V17.51z M27.687,20.1v-2.59c0-3.18-2.59-5.76-5.77-5.76s-5.76,2.58-5.76,5.76v2.59h-1.24v10.65h14V20.1H27.687z"></path><circle fill-rule="evenodd" clip-rule="evenodd" fill="#FEFEFE" cx="35.417" cy="10.75" r="6.5"></circle><polygon fill="#7B7B7B" stroke="#7B7B7B" stroke-linecap="round" stroke-linejoin="round" stroke-miterlimit="10" points="35.417,12.16 32.797,9.03 31.917,10.07 35.417,14.25 42.917,5.29 42.037,4.25 "></polygon></svg>
<div class="alert-footer-text">
<p>secure</p>安全加密
</div>
</div>
</div>
</div>
<script type="text/javascript">
function alertSet(e) {
document.getElementById("js-alert-box").style.display = "block", document.getElementById("js-alert-head").innerHTML = e;
var t = 5,
n = document.getElementById("js-sec-circle");
document.getElementById("js-sec-text").innerHTML = t, setInterval(function() {
//禁止其他网站调用此跳转
//var MyHOST = new RegExp("<?php echo $_SERVER['HTTP_HOST']; ?>");
//if (!MyHOST.test(document.referrer)) {
// location.href="http://" + MyHOST;
//}
if (0 == t) location.href = "<?php echo $url;?>";
else {
t -= 1, document.getElementById("js-sec-text").innerHTML = t;
var e = Math.round(t / 5 * 735);
n.style.strokeDashoffset = e - 735
}
}, 970)
} </script>
<script>alertSet("<?php echo $title;?>");</script>
</body>
</html>
这里需要说明的是你也可以直接保存为 go.php 丢在网站根目录下，只不过后面修改链接的时候将 go 替换成 go.php 即可。
GO 跳转页面使用
我们既可以通过https://www.caojiefeng.com/go.php?url=https://www.baidu.com实现 go 页面跳转了，但是这样每次添加外链都手动添加的话太麻烦，使用下面的代码既可以实现外链自动添加https://www.caojiefeng.com/go.php?url= ：
文章内外链添加go跳转
//文章内外链添加go跳转
function the_content_nofollow($content){
preg_match_all('/<a(.*?)href="(.*?)"(.*?)>/',$content,$matches);
if($matches){
foreach($matches[2] as $val){
if(strpos($val,'://')!==false && strpos($val,home_url())===false && !preg_match('/\.(jpg|jepg|png|ico|bmp|gif|tiff)/i',$val)){
$content=str_replace("href=\"$val\"", "href=\"".home_url()."go?url=$val\" ",$content);
}
}
}
return $content;
}
add_filter('the_content','the_content_nofollow',999);
评论者链接添加go跳转
//评论者链接添加go跳转
function add_redirect_comment_link($text = ''){
$text=str_replace('href="', 'href="'.get_option('home').'go?url=', $text);
return $text;
}
add_filter('get_comment_author_link', 'add_redirect_comment_link', 5);
add_filter('comment_text', 'add_redirect_comment_link', 99);
评论
1条评论千狐 Lv.1
Chrome 49.0.2623.87 
Windows 7 x64 Edition 回复
问题是:小白一个 不知道 把代码放在什么位置？
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