Question

我在互联网上找到了一个关于如何在php上传文件的简单脚本。

  <?php
require 'config.php';

if (isset ( $_SERVER ['REQUEST_METHOD'] ) == 'POST') {
 // when submit button is clicked
 if (isset ( $_POST ['submit'] )) {
  // get user's data
  $name = $_POST ['name'];
  $email = $_POST ['email'];
  $images = "";

  // check if user has added images
  if(strlen(($_FILES ['upload'] ['tmp_name'] [0])) != 0){
   $upload_dir = "images/";

   // move all uploaded images in directory
   for ($i = 0; $i < count($_FILES['upload']['name']); $i++) {
    $ext = substr(strrchr($_FILES['upload']['name'][$i], "."), 1);

    // generate a random new file name to avoid name conflict
    $fPath = md5(rand() * time()) . ".$ext";
    $images .= $fPath.";";

    $result = move_uploaded_file($_FILES['upload']['tmp_name'][$i], $upload_dir . $fPath);
   } 
  }else {
   // if user doesn't have any images, add default value
   $images .= "no images";
  }

  // write the user's data in database
  // prepare the query
  $query = "INSERT INTO users(name, email,images) VALUES
  ('$name', '$email','$images')";

  // TODO check if the user's informations are successfully added
  // in the database
  $result = mysql_query ( $query ); 
 }
}
?>

这个脚本总体上做得非常好，但唯一的问题是，当我上传图像文件或pdf时，它们会在新标签中打开，但它们不会下载。如何在单击下载链接时自动下载上载的图像文件？提前谢谢。

Answer 1

添加下载链接，如下所示

<a href="link/to/your/download/image" download>Download link</a>

在apache config

中添加以下代码

<Location "/images">
<Files *.*>
    ForceType application/octet-stream
    Header set Content-Disposition attachment
</Files>
</Location>

在php中强制下载所有上传的文件

1 个答案: