Problems Outputting file in FireFox

[Adamthenewbie]

I have a page that prompts a user to Save a file called entries_mm_import.txt. Basically the code listed below prompts the user to save a txt file which contains the contents of the variable $createMMFile.

<?
$path = ''; 
$get = 'entries_mm_import.txt'; 
header ("Cache-Control: must-revalidate, post-check=0, pre-check=0"); 
header ("Content-Type: application/octet-stream"); 
header ("Content-Length: " . filesize($path.$get)); 
header ("Content-Disposition: attachment; filename=$get");

//SOME DATABASE STUFF WHICH CREATES THE VARIABLE $createMMFile

echo $createMMFile;
?>

My problem is it works perfect in Internet Explorer but in FireFox it only writes the first 3699 characters to the file entries_mm_import.txt. Is there a character limit (or size limit) in FireFox? Has anyone ever run into a similar problem as this?

[rachel2004]

I didn't test this, but trying swapping in the following for your existing line for your mime-type ('Content-Type):

$mime = "application/x-download";
header("Content-Type: ".$mime);

The 'x-download' part is a generic way of saying to the browser to attempt to download the file. Post back if it works.

[Adamthenewbie]

<?
$path = ''; 
$get = 'entries_mm_import.txt'; 
$mime = "application/x-download";
header("Content-Type: ".$mime);
header ("Content-Disposition: attachment; filename=$get");

//SOME DATABASE STUFF WHICH CREATES THE VARIABLE $createMMFile

echo $createMMFile;
?>

Thanks above seems to work fine.

[Weedpacket]

But ignore the change to the $mime type: "application/octet-stream" is correct. It indicates that the following is a generic lump of raw data that isn't to be treated in any special way.