php服务下载后刷新

第1页链接到第2页。第2页使用以下代码提供下载：

header("Content-disposition: attachment; filename= '$filename'");
header('Content-type: application/pdf');
readfile($file);
header("location: mainpage.php");

结果是用户“停留”在第1页上，但获得下载服务

如何设置，以便用户保留在第1页上，但在下载服务完成后，页面会刷新

---

我不懂javascript，所以我希望有一个纯PHP的解决方案。

您可以通过$\u服务器['HTTP\u referer']检查referer是什么。因此，您应该能够在您的page1.php中输入以下内容：

if($_SERVER['HTTP_REFERER'] == page2.php) {
  echo "<meta http-equiv=\"refresh\" content=\"0;url=http://www.yourdomain.com/page1.php\">";
exit();
}

if（$\u服务器['HTTP\u REFERER']==page2.php）{
回声“；
退出（）；
}

---

通过这种方式，您可以检查访问者是否来自page2.php，如果来自page2.php，则只解析刷新浏览器的元标记。当它被刷新时，它不会再次刷新，因为HTTP_REFERER现在是page1.php

以前不知道这一点，但这只是一个很好的HTTP头，我们大多数人已经从HTML中知道了：

Refresh

只需添加以下

标题

调用：

header('Refresh: 0; url=http://stackoverflow.com/');

---

在我看来，我认为你根本不需要刷新第1页。您应该能够通过第1页内的链接强制下载。见下文：

带有链接的Page1.php

<a href="http://www.domain.com/page2.php?pdf=name-of-pdf">Download PDF</a>

这将允许在您停留在第1页时开始下载

---

希望这就是你的想法。

不确定你是否得到过答案，但我也有同样的问题， 这是我的解决办法 AJAX jquery

$(function(){

$("#itemList").on("click", "a.downloadLink", function(){ //this binds a click event handler on the itemList container that will listen out for any a with class of downloadLink inside it being clicked

       var link = $(this);
       var item = link.parent();
       var forId = item.data("itemid");
       var started = new Date(); //the alternative to tracking time elapsed is to just use a simple counter you increment - "poll 5 times" etc. if your doing .5 second intervals, then 5 times = 2.5 seconds for example. Time elapsed may result in less polls, if a poll takes a long time to return, for example. Use whichever approach feels better.
       var maxTime = 5000; //5 seconds
       function poll(){
             $.ajax({
                type: "POST",
                url: "Watergetstatus.php", 

                  data: {FID: forId},   //this will be turned into a request for page1?forId=1&oldValue=2  - I expect it in this example to return a json-encoded response of {"changed":true|false, "newHtml":"replacementContent on success"}
                  datatype :'json',
                  success: function(data){
                         if (data.changed=true)
                         {
                         window.location.reload(true);
                         }
                         else {
                               var elapsed = (new Date())-started;
                               //window.location.reload(true);
                               if (elapsed <= maxTime) setTimeout(poll, 500); // Poll again in .5 seconds
                               //else you can assume the link didn't open / work / the database never changed etc - handle or ignore as needed
                          }
                   },
                   error: function() {
                       alert("borken");  //the request to the server bombed out; up to you if you want to simply re-queue for another try like above until the expiry time or if you want to show an error or just simply ignore it.
                   }
             });
       }

       setTimeout(poll, 500); //wait 0.5 seconds before polling
});

});

下载文件链接watercheckout.php

if ( $row_files['Status']==1 ) {

$file_path  = $row_files['FileName'];;
$path_parts = pathinfo($file_path);
$file_name  = $path_parts['basename'];
$file_ext   = $path_parts['extension']; 

 $content_types = array(
            "exe" => "application/octet-stream",
            "zip" => "application/zip",
            "mp3" => "audio/mpeg",
            "mpg" => "video/mpeg",
            "avi" => "video/x-msvideo",
    );
    $ctype = isset($content_types[$file_ext]) ? $content_types[$file_ext] : $ctype_default;



$file = $row_files['FileName'];
$path = "Historical/".date('Y-m-d-His');
$newfile = $path."_".$file;
$today = date('Y-m-d H:i:s');

header('Content-disposition: attachment; filename='.$file);
header("Content-Type: " . $ctype);
header('Content-Length: ' . filesize($file));
header('Content-Transfer-Encoding: binary');
header('Cache-Control: must-revalidate');
header('Pragma: public');
mysql_select_db($database_PLC, $PLC);
mysql_query("UPDATE files SET Status = '2'");

ob_clean();
flush();


readfile($file);
rename($file, $newfile);

我简化了我的代码，删掉了很多内容，所以它可能遗漏了一些东西，但这是我使用的通用框架，对我来说很有用

希望这对其他人有所帮助，因为下载页面顶部没有太多内容----------------------

//----------------- TOP OF DOWNLOAD_PAGE.PHP ----------------------

$download_code = mysql_real_escape_string(urldecode($_GET['code']));
$download = mysql_real_escape_string(urldecode($_GET['download']));

$self = $_SERVER["PHP_SELF"]."?code=$download_code";

//refresh page after download...

echo"
    <script type=\"text/javascript\">
        function downloadRedirect(){
           var redirect_url = \"$self\";

           setTimeout(\"DoTheRedirect('\"+redirect_url+\"')\",
            parseInt(0.5*1000));
        }
        function DoTheRedirect(url) { window.location=url; }
    </script>
";

...

$filepath = "/var/www/vhosts/YOUR_DOMAIN.com/digital_downloads/";

if (isset($_GET['download'])) {

    $file = $_GET['download'];

    if (file_exists($filepath.$download) && 
is_readable($filepath.$download) && (preg_match('/\.zip$/',$download) || preg_match('/\.zipx$/',$download) )) {

...

    header("Pragma: public");
    header("Expires: 0");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Cache-Control: public");
    header("Content-Description: File Transfer");
    header("Content-type: application/octet-stream");
    header("Content-Disposition: attachment; filename=\"".$download."\"");
    header("Content-Transfer-Encoding: binary");
    header("Content-Length: ".filesize($filepath.$download));
    ob_end_flush();
    readfile($filepath.$download);


}//end if file_exists


}//end if isset

//----------------- BOTTOM HALF OF DOWNLOAD_PAGE.PHP ----------------------

//link generated to download and call JS to refresh page
echo "<a href=\"".$_SERVER["PHP_SELF"]."?download=$download_id.zipx&code=$download_code\" target=\"_top\" onclick=\"javascript:downloadRedirect()\">Click to Download</a> 

$download\u code=mysql\u real\u escape\u string（urldecode（$\u GET['code']）； $download=mysql\u real\u escape\u字符串（urldecode（$\u GET['download']）； $self=$\u SERVER[“PHP\u self”]。“？code=$download\u code”； //下载后刷新页面。。。 回声“ 函数downloadRedirect（）{ var redirect\u url=\“$self\”； setTimeout（\“dotherDirect（'\“+重定向\\u url+\”）\”， parseInt（0.5*1000））； } 函数dotherDirect（url）{window.location=url；} "; ... $filepath=“/var/www/vhosts/YOUR_DOMAIN.com/digital_downloads/”； 如果（isset（$_GET['download']））{ $file=$\u获取['download']； 如果（文件_存在（$filepath.$download）&& 可读（$filepath.$download）&（preg\u匹配（'/\.zip$/'，$download）| preg\u匹配（'/\.zipx$/'，$download）））{ ... 标题（“Pragma:public”）； 标题（“到期日：0”）； 标头（“缓存控制：必须重新验证，后检查=0，前检查=0”）； 标头（“缓存控制：公共”）； 标题（“内容描述：文件传输”）； 标题（“内容类型：应用程序/八位字节流”）； 标题（“内容处置：附件；文件名=\”.$download.\”）； 标题（“内容传输编码：二进制”）； 标题（“内容长度：“.filesize（$filepath.$download））； ob_end_flush（）； readfile（$filepath.$download）； }//如果文件_存在，则结束 }//如果已设置，则结束 //-----------------下载页面的下半部分---------------------- //生成链接下载并调用JS刷新页面 回声“

---

开始下载后，指定的url将自动加载-无需HTML技巧。这不是您想要的吗？只需将该地址替换为用户的当前地址。因此，您准确地解释了我的操作。我想要的实际上是相反的。我需要这个确切的效果，但在下载后，我需要刷新页面，以便将“下载pdf”显示为“其他内容”。一个好的答案需要的不仅仅是代码。需要解释它如何回答最初的问题。

mysql_select_db($database_PLC, $PLC);
$query_files = "SELECT * FROM files WHERE FID = '{$_POST['FID']}'";
$files = mysql_query($query_files, $PLC) or die(mysql_error());
$row_files = mysql_fetch_assoc($files);
$totalRows_files = mysql_num_rows($files);

if($row_files['Status'] ==2)
{
        $data= array("changed"=>true); 
        echo json_encode($data);
}
else
{
        $data= array("changed"=>false); 
        echo json_encode($data);
}

if ( $row_files['Status']==1 ) {

$file_path  = $row_files['FileName'];;
$path_parts = pathinfo($file_path);
$file_name  = $path_parts['basename'];
$file_ext   = $path_parts['extension']; 

 $content_types = array(
            "exe" => "application/octet-stream",
            "zip" => "application/zip",
            "mp3" => "audio/mpeg",
            "mpg" => "video/mpeg",
            "avi" => "video/x-msvideo",
    );
    $ctype = isset($content_types[$file_ext]) ? $content_types[$file_ext] : $ctype_default;



$file = $row_files['FileName'];
$path = "Historical/".date('Y-m-d-His');
$newfile = $path."_".$file;
$today = date('Y-m-d H:i:s');

header('Content-disposition: attachment; filename='.$file);
header("Content-Type: " . $ctype);
header('Content-Length: ' . filesize($file));
header('Content-Transfer-Encoding: binary');
header('Cache-Control: must-revalidate');
header('Pragma: public');
mysql_select_db($database_PLC, $PLC);
mysql_query("UPDATE files SET Status = '2'");

ob_clean();
flush();


readfile($file);
rename($file, $newfile);

//----------------- TOP OF DOWNLOAD_PAGE.PHP ----------------------

$download_code = mysql_real_escape_string(urldecode($_GET['code']));
$download = mysql_real_escape_string(urldecode($_GET['download']));

$self = $_SERVER["PHP_SELF"]."?code=$download_code";

//refresh page after download...

echo"
    <script type=\"text/javascript\">
        function downloadRedirect(){
           var redirect_url = \"$self\";

           setTimeout(\"DoTheRedirect('\"+redirect_url+\"')\",
            parseInt(0.5*1000));
        }
        function DoTheRedirect(url) { window.location=url; }
    </script>
";

...

$filepath = "/var/www/vhosts/YOUR_DOMAIN.com/digital_downloads/";

if (isset($_GET['download'])) {

    $file = $_GET['download'];

    if (file_exists($filepath.$download) && 
is_readable($filepath.$download) && (preg_match('/\.zip$/',$download) || preg_match('/\.zipx$/',$download) )) {

...

    header("Pragma: public");
    header("Expires: 0");
    header("Cache-Control: must-revalidate, post-check=0, pre-check=0");
    header("Cache-Control: public");
    header("Content-Description: File Transfer");
    header("Content-type: application/octet-stream");
    header("Content-Disposition: attachment; filename=\"".$download."\"");
    header("Content-Transfer-Encoding: binary");
    header("Content-Length: ".filesize($filepath.$download));
    ob_end_flush();
    readfile($filepath.$download);


}//end if file_exists


}//end if isset

//----------------- BOTTOM HALF OF DOWNLOAD_PAGE.PHP ----------------------

//link generated to download and call JS to refresh page
echo "<a href=\"".$_SERVER["PHP_SELF"]."?download=$download_id.zipx&code=$download_code\" target=\"_top\" onclick=\"javascript:downloadRedirect()\">Click to Download</a>