How to modify the file name when downloading in php

php method to modify the file name when downloading: first set the download address; then control the output name in the Controller, code such as "$file = './path/1.zip'...header( 'Pragma: public');readfile($file)...".

The operating environment of this article: windows7 system, PHP7.1 version, DELL G3 computer

php changes the file name when downloading the file

Download address:

/download.php?controller=down_file&file=1.zip

Then control the output name in the Controller to achieve

$file = './路径/1.zip';
filename = '2.zip';
header('Content-Description: File Transfer');
header('Content-Type: application/octet-stream');
header("Content-type:text/html;charset=utf-8");
header('Content-Disposition: attachment; filename='. $filename);
header('Content-Transfer-Encoding: binary');
header('Expires: 0'); header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
readfile($file);
exit;

[Recommended learning: "PHP Video Tutorial" 】

==============

==========

We generally implement downloading by calling URL to download, but you cannot use this method when you encounter files that IE can recognize when opening, such as downloading a picture, HTML web page, etc. At this time, programming is required to implement it. The following PHP code can solve the problem:

 alert("非法连接 !"); location.replace ("index.php") '; exit();
}
$file_name=$_GET['FileName'];
$file_dir=$_GET['FileDir'];
$FileId=$_GET['FileId'];
$file_dir = $file_dir."/";
if   (!file_exists($file_dir.$file_name))   {   //检查文件是否存在  
  echo   "文件找不到";  
  exit;    
  }   else   {  
$file = fopen($file_dir . $file_name,"r"); // 打开文件
// 输入文件标签
Header("Content-type: application/octet-stream");
Header("Accept-Ranges: bytes");
Header("Accept-Length: ".filesize($file_dir . $file_name));
Header("Content-Disposition: attachment; filename=" . $file_name);
// 输出文件内容
echo fread($file,filesize($file_dir . $file_name));
fclose($file);
exit();
}
?>

The above is the detailed content of How to modify the file name when downloading in php. For more information, please follow other related articles on the PHP Chinese website!