Code Examples -> Force file download

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PHP Code Examples

Title :	Force file download
Categories :	PHP, Filesystem, HTTP, Program Execution	bastien koert
Date :	Jun 16th 2005
Grade :	2 of 5 (graded 10 times)
Viewed :	70788
File :	No file for this code example.
Images :	No Images for this code example.

Search :	More code by bastien koert
Action :	Grade This Code Example
Tools :	My Examples List

Code

The following code takes a file name as a parameter and then forces the browser to download that file.

<?
function force_download($file)
{
$dir = "../log/exports/";
if ((isset($file))&&(file_exists($dir.$file))) {
header("Content-type: application/force-download");
header('Content-Disposition: inline; filename="' . $dir.$file . '"');
header("Content-Transfer-Encoding: Binary");
header("Content-length: ".filesize($dir.$file));
header('Content-Type: application/octet-stream');
header('Content-Disposition: attachment; filename="' . $file . '"');
readfile("$dir$file");
} else {
echo "No file selected";
} //end if

}//end function
?>

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User Comments

	Jose Santos wrote : 1328 `This is a very good code example, and very useful to download or export to file !!`
	walid yasen wrote : 1363 hi i use that code but have all this error, and i`m sure its form me , can yu help me why that error happen. "Warning: Cannot modify header information - headers already sent by (output started at /home/../..../.../fdownload.php:1) in /home/.../../../fdownload.php on line 8 Warning: Cannot modify header information - headers already sent by (output started at /home/.../.../..../fdownload.php:1) in /home/.../.../.../fdownload.php on line 9 Warning: Cannot modify header information - headers already sent by (output started at /home/..../.../.../fdownload.php:1) in /home/.../.../.../fdownload.php on line 10 Warning: Cannot modify header information - headers already sent by (output started at /home/../../.../fdownload.php:1) in /home/.../../../fdownload.php on line 11 Warning: Cannot modify header information - headers already sent by (output started at /home/.../.../.../fdownload.php:1) in /home/.../.../../fdownload.php on line 12 Warning: Cannot modify header information - headers already sent by (output started at /home/.../.../.../fdownload.php:1) in /home/../../../fdownload.php on line 13
	berber berberon wrote : 1364 `Looks like you have a space somewhere in your file sent before the header info is sent. look for empty lines in the begining of your code.`
	dean williams wrote : 1379 `why does everyone use <? ... ?> This is NOT correct and does NOT work on all servers, please use the PHP standards... <?php ... ?> Anyone having problems can try that...`
	xgrapher xxx wrote :1688 `I plopped the code on a php which I call upon from page, eg: xgrapher.com/download.php?file=test.mpg and it worked perfect. Thanks! However, if I went back and tried downloading another file, it would simply terminate the file which is being downloaded. I guess its because the variables are reserved till the download is completed. Could you please help? Thanks, xgrapher`