转:php header()函数使用详解


非常实用的header()函数实用介绍:

    /**php中header函数用法实例总结:  希望对你有帮助!*/  
    //1. 页面没找到 Not Found   
    header(‘HTTP/1.1 404 Not Found’);   
    //2. 用这个header指令来解决URL重写产生的404 header   
    header(‘HTTP/1.1 200 OK’);   
    //3. 访问受限   
    header(‘HTTP/1.1 403 Forbidden’);   
    // The page moved permanently should be used for   
    // all redrictions, because search engines know   
    // what’s going on and can easily update their urls.   
    //4. 页面被永久删除,可以告诉搜索引擎更新它们的urls   
    header(‘HTTP/1.1 301 Moved Permanently’);   
    //5. 服务器错误   
    header(‘HTTP/1.1 500 Internal Server Error’);   
    //6. 重定向到一个新的位置   
    header(‘Location: http://www.example.org/’);   
    //7. 延迟一段时间后重定向   
    header(‘Refresh: 10; url= http://www.example.org/’);   
    echo ’You will be redirected in 10 seconds’;   
    //8. 加载要下载的文件:   
    readfile(‘example.zip’);   
    //9. 也可以使用HTML语法来实现延迟   
    header(‘Content-Transfer-Encoding: binary’);   
    //10. 禁止缓存当前文档:   
    header(‘Cache-Control: no-cache, no-store, max-age=0, must-revalidate’);   
    header(‘Expires: Mon, 26 Jul 2010 05:00:00 GMT’);   
    header(‘Pragma: no-cache’);   
    //11. 显示登录对话框,可以用来进行HTTP认证   
    header(‘HTTP/1.1 401 Unauthorized’);   
    header(‘WWW-Authenticate: Basic realm=“Top Secret”‘);   
    echo ’Text that will be displayed if the user hits cancel or ’;   
    echo ’enters wrong login data’;   
    //12. 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’); // plain text file   
    header(‘Content-Type: image/jpeg’); // JPG picture   
    header(‘Content-Type: application/zip’); // ZIP file   
    header(‘Content-Type: application/pdf’); // PDF file   
    header(‘Content-Type: audio/mpeg’); // Audio MPEG (MP3,…) file   
    header(‘Content-Type: application/x-shockwave-flash’); // Flash animation

 

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