PHP Example Tutorial: PHP Implementation of file security download program

PHP Implementation file security download

The procedure is as follows:

$file_name = "Info_check.exe";

$file_dir = "/public/www/download/";

if (!file_exists ($file_dir. $file_name)) {//check whether the file exists

echo "File not found";

Exit

} else {

$file = fopen ($file_dir. $file_name, "R"); Open File

Input File Label

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);

Output file contents

Echo fread ($file,filesize ($file_dir. $file_name));

Fclose ($file);

Exit;}

If the file path is "http" or "FTP" URL, the source code will change a little bit, the program is as follows:

$file_name = "Info_check.exe";

$file_dir = "www.webjx.com/";

$file = @ fopen ($file_dir. $file_name, "R");

if (!$file) {

echo "File not found";

} else {

Header ("Content-type:application/octet-stream");

Header ("content-disposition:attachment; Filename= ". $file_name);

while (!feof ($file)) {

echo fread ($file,50000);

}

Fclose ($file);

}

So you can use PHP to output files directly.