How to download files securely in PHP _php tips

The example in this article describes the way PHP downloads files securely. Share to everyone for your reference, specific as follows:

 <?php header (' content-type:text/html;
Charset=utf-8 ');
Define (' Root_path ', DirName (__file__)); /** * Download File * @param string $file _path absolute path/function Downfile ($file _path) {//To determine whether a file exists $file _path = iconv (' Utf-8 ' , ' gb2312 ', $file _path); transcoding if (!file_exists ($file _path) for a possible Chinese name) {exit (' file does not exist!
  '); } $file _name = basename ($file _path); Gets the file name $file _size = filesize ($file _path); Gets the file size $fp = fopen ($file _path, ' R ');
  Open the file header ("Content-type:application/octet-stream") in read-only mode;
  Header ("Accept-ranges:bytes");
  Header ("Accept-length: {$file _size}");
  Header ("content-disposition:attachment;filename={$file _name}");
  $buffer = 1024;
  $file _count = 0;
    To determine whether the file is closed while (!feof ($fp) && ($file _size-$file _count>0)) {$file _data = fread ($fp, $buffer);
    $file _count + + $buffer;
  echo $file _data; } fclose ($FP); Closes the file} downfile (Root_path. '/down/sunset.jpg ');?> 

Description: The name of the file can be accepted in Chinese. The file format is utf-8.

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I hope this article will help you with the PHP program design.