伙计们,我知道有很多关于强制弹出下载对话框的话题,但是还没有一个解决方案对我有用。
我的应用程序将邮件发送到用户的电子邮件帐户,通知他们“另一个用户向他们发送了一条消息”。这些消息可能具有指向Excel文件的链接。当用户单击其GMail / Yahoo Mail / Outlook中指向该Excel文件的链接时,我希望弹出“文件保存”对话框。
问题:右键单击并在IE上执行“另存为”时,出现“另存为”对话框。当我仅单击链接(许多客户端将执行此操作,因为它们不精通计算机)时,我收到一条IE错误消息:“ IE无法从…下载文件…。”。可能是相关的:在我正在测试的GMail上,每个链接都是“ target = _blank”链接(由Google强制执行)。
在所有情况下,所有其他浏览器都可以正常工作。
这是我的标头(通过Fiddler捕获):
HTTP/1.1 200 OK Proxy-Connection: Keep-Alive Connection: Keep-Alive Content-Length: 15872 Via: **** // proxy server name Expires: 0 Date: Tue, 20 Oct 2009 22:41:37 GMT Content-Type: application/vnd.ms-excel Server: Apache/2.2.11 (Unix) DAV/2 mod_ssl/2.2.11 OpenSSL/0.9.8i mod_python/3.3.1 Python/2.5.2 SVN/1.4.6 mod_apreq2-20051231/2.6.0 mod_perl/2.0.4 Perl/v5.10.0 Cache-Control: private Pragma: no-cache Last-Modified: Tue, 20 Oct 2009 22:41:37 GMT Content-Disposition: attachment; filename="myFile.xls" Vary: Accept-Encoding Keep-Alive: timeout=5, max=100
我希望IE的常规左击行为能够正常工作。有任何想法吗?
这将检查IE的版本并相应地设置标头。
// assume you have a full path to file stored in $filename if (!is_file($filename)) { die('The file appears to be invalid.'); } $filepath = str_replace('\\', '/', realpath($filename)); $filesize = filesize($filepath); $filename = substr(strrchr('/'.$filepath, '/'), 1); $extension = strtolower(substr(strrchr($filepath, '.'), 1)); // use this unless you want to find the mime type based on extension $mime = array('application/octet-stream'); header('Content-Type: '.$mime); header('Content-Disposition: attachment; filename="'.$filename.'"'); header('Content-Transfer-Encoding: binary'); header('Content-Length: '.sprintf('%d', $filesize)); header('Expires: 0'); // check for IE only headers if (preg_match('~MSIE|Internet Explorer~i', $_SERVER['HTTP_USER_AGENT']) || (strpos($_SERVER['HTTP_USER_AGENT'], 'Trident/7.0; rv:11.0') !== false)) { header('Cache-Control: must-revalidate, post-check=0, pre-check=0'); header('Pragma: public'); } else { header('Pragma: no-cache'); } $handle = fopen($filepath, 'rb'); fpassthru($handle); fclose($handle);