Question

如何动态下载文件，即扩展名为.pec的文件已上传到服务器，现在我必须下载相同的文件而不提供带有.pec扩展名的文件名。

在第4行我已经给出了文件名isifresume.pdf，我已将其上传到服务器并获取加密到wasifresume.pec扩展名，现在我必须在第4行动态下载文件相同的文件

 $file = "wasifresume.pec";

没有给出文件名称isifresume

是否有任何代码可以像* .pec那样下载同一个文件，因为我想动态制作它。

<<?php
session_start();

ob_start();

$file = "wasifresume.pec";

echo $_SESSION["file_name"]."the name";

ob_start();
// put some business here 


if(file_exists($file))
{
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename='.basename($file));
header('Content-Transfer-Encoding: binary'); 
header('Expires: 0');
header('Cache-Control: must-revalidate');
header('Pragma: public');
header('Content-Length: ' . filesize($file));
ob_clean();

readfile($file);
exit;
}
else
echo "file not found";
?>

请参阅upload.php

<?php
session_start();

$target_dir = "uploads/";
$target_file = $target_dir . basename($_FILES["fileToUpload"]["name"]);
$uploadOk = 1;
//$imageFileType = pathinfo($target_file,PATHINFO_EXTENSION); 
// Check if image file is a actual image or fake image
if(isset($_POST["submit"])) {
    $uploadOk = 1;
}
// Check if file already exists
if (file_exists($target_file)) {
echo "Sorry, file already exists.";
$uploadOk = 0;
}
// Check file size 
if ($_FILES["fileToUpload"]["size"] > 50000000) {
echo "Sorry, your file is too large.";
$uploadOk = 0;
}
if ($uploadOk == 0) {
echo "Sorry, your file was not uploaded.";
// if everything is ok, try to upload file
} else {
echo $_FILES["fileToUpload"]["tmp_name"];
if (move_uploaded_file($_FILES["fileToUpload"]["tmp_name"],   $target_file)) {
    echo "The file ". basename( $_FILES["fileToUpload"]["name"]). " has   been uploaded.";
//   echo  $_FILES["fileToUpload"]["name"]; 

   $_SESSION["file_name"]=$_FILES["fileToUpload"]["name"];

// echo $ _SESSION [“file_name”];

 exec('/var/www/html/CryptCmdline http://*.*.*.*/uploads/'. $_FILES["fileToUpload"]["name"],$output);

    // $output=shell_exec("dr.bs");
    // print_r($output);

     include('/var/www/html/down.php');
   } else {
       echo "Sorry, there was an error uploading your file.";
   }
}
?>

Answer 1

仅在PHP代码中设置content-type是不够的。您需要将PEC添加到Web服务器的MIME类型中，以便了解它正在传输的文件类型

Answer 2

在.htacces文件中

AddType application/octet-stream .pec

这将使其自动下载

或：

<FilesMatch ".pec">
ForceType application/octet-stream
Header set Content-Disposition attachment
Header set Content-Description "File Transfer"
Header set Content-Transfer-Encoding "binary"
</FilesMatch>

如何动态下载文件，即扩展名为.pec的文件已上传到服务器，现在我必须下载相同的文件

2 个答案: