php实现301重定向跳转实例代码
在php中301重定向实现⽅法很简单我们只要简单的利⽤header发送301状态代码，然后再⽤header进⾏跳转，效果与apache,iis,nginx都是⼀样的效果哦。
代码如下
<?php
$the_host = $_SERVER['HTTP_HOST'];
$request_uri = isset($_SERVER['REQUEST_URI']) ? $_SERVER['REQUEST_URI'] : '';
if($the_host == 'www.jb51')
{
header('HTTP/1.1 301 Moved Permanently');
header('Location: jb51'.$request_uri);//
}
>
⼆：单页多站的Php301重定向代码,www.jb51和jb51则301到index.php上,jbzj则301到www.jbzj上，否则转到错误页
代码如下
if(($HTTP_HOST=="www.jb51")or($HTTP_HOST=="jb51"))
{
header("HTTP/1.1 301 Moved Permanently");
Header("Location: /index.php");
}
elseif($HTTP_HOST=="jbzj")
{
header("HTTP/1.1 301 Moved Permanently");
Header("Location: www.jbzj");
}
else
{
Header("Location: /404.htm");
}
>
附上其它跳转办法
代码如下
//定义编码
header( 'Content-Type:text/html;charset=utf-8 ');
/
php中header是什么意思/Atom
header('Content-type: application/atom+xml');
//CSS
header('Content-type: text/css');
//Javascript
header('Content-type: text/javascript');
//JPEG Image
header('Content-type: image/jpeg');
//JSON
header('Content-type: application/json');
//PDF
header('Content-type: application/pdf');
//RSS
header('Content-Type: application/rss+xml; charset=ISO-8859-1');
//Text (Plain)
header('Content-type: text/plain');
//XML
header('Content-type: text/xml');
// ok
header('HTTP/1.1 200 OK');
//设置⼀个404头:
header('HTTP/1.1 404 Not Found');
/
/设置地址被永久的重定向
header('HTTP/1.1 301 Moved Permanently');
//转到⼀个新地址
header('Location: /');
//⽂件延迟转向:
header('Refresh: 10; url=/');
print 'You will be redirected in 10 seconds';
//当然，也可以使⽤html语法实现
// <meta http-equiv="refresh" content="10;/ />
// override X-Powered-By: PHP:
header('X-Powered-By: PHP/4.4.0');
header('X-Powered-By: Brain/0.6b');
//⽂档语⾔
header('Content-language: en');
//告诉浏览器最后⼀次修改时间
$time = time() - 60; // or filemtime($fn), etc
header('Last-Modified: '.gmdate('D, d M Y H:i:s', $time).' GMT');
//告诉浏览器⽂档内容没有发⽣改变
header('HTTP/1.1 304 Not Modified');
//设置内容长度
header('Content-Length: 1234');
//设置为⼀个下载类型
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="example.zip"');
header('Content-Transfer-Encoding: binary');
// load the file to send:
readfile('example.zip');
// 对当前⽂档禁⽤缓存
header('Cache-Control: no-cache, no-store, max-age=0, must-revalidate');
header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
header('Pragma: no-cache');
//设置内容类型:
header('Content-Type: text/html; charset=iso-8859-1');
header('Content-Type: text/html; charset=utf-8');
header('Content-Type: text/plain'); //纯⽂本格式
header('Content-Type: image/jpeg'); //JPG***
header('Content-Type: application/zip'); // ZIP⽂件
header('Content-Type: application/pdf'); // PDF⽂件
header('Content-Type: audio/mpeg'); // ⾳频⽂件
header('Content-Type: application/x-shockw**e-flash'); //Flash动画
//显⽰登陆对话框
header('HTTP/1.1 401 Unauthorized');
header('WWW-Authenticate: Basic realm="Top Secret"');
print 'Text that will be displayed if the user hits cancel or ';
print 'enters wrong login data';
跳转要注意以下⼏点，有助于解决⼀些新⼿经常遇到的问题
1、location和“:”号间不能有空格，否则会出错。
2、在⽤header前不能有任何的输出。
3、header后的PHP代码还会被执⾏。
以上就是，对php 301重定向跳转的资料整理，希望能帮助php 开发的同学。