Hi All
I have a simple download script for files on my website and I use the code
below to download the files:
$fp = fopen($filename , "rb");
if ( $fp )
{
$filesize = $file['size'];
header("Cache-Control: post-check=0, pre-check=0");
header("Expires : 0");
header("Content-Type: " . $xtype);
header("Content-Length: " . (string)($files ize));
header("Content-Transfer-Encoding: binary");
while ( !feof($fp) )
{
echo(fgets($fp, 4096));
}
fclose($fp);
}
Now this works just fine on Firefox and Opera, and even on IE when its used
in a web page ie <img src="download.p hp?id=2"/> but if I try and go to a
file directly by typing in the url www.website.com/download.php?id=2 then it
opens a Download dialog asking me to save the file instead of displaying it
in the browser, this only happens with IE though. Am I missing a vital bit
to the header, or is this a problem with IE, if so is there a way around it
at all?
Many thanks. 4 3620
"C16" wrote: $fp = fopen($filename , "rb"); if ( $fp ) { $filesize = $file['size'];
header("Cache-Control: post-check=0, pre-check=0"); header("Expires : 0"); header("Content-Type: " . $xtype); header("Content-Length: " . (string)($files ize)); header("Content-Transfer-Encoding: binary");
while ( !feof($fp) ) { echo(fgets($fp, 4096)); } fclose($fp); }
Assuming $xtype is defined correctly somewhere, I reckon IE is choking on
the Content-Transfer-Encoding header. This is a MIME header -- it doesn't
belong in an HTTP response at all. Go and read RFC 2616 some time.
You don't need to cast $filesize to a string -- PHP will do this for you
anyway. And while you're at it, I suggest you replace the while() loop with
a readfile() statement instead (<http://uk.php.net/readfile>).
Oh, by the way, filesize() is another useful function. That way you can get
rid of the fopen and fclose instructions altogether.
Phil
--
phil [dot] ronan @ virgin [dot] net http://vzone.virgin.net/phil.ronan/
I was using readfile but found a discussion that showed readfile to be '55%'
slower than reading by chunks (in the readfile function desc on php.net
infact). Also tried the header without Content-Transfer-Encoding and many
other permutations from suggestions found via google but still the same
result on IE.
"Philip Ronan" <in*****@invali d.invalid> wrote in message
news:BF743985.3 9633%in*****@in valid.invalid.. . "C16" wrote:
$fp = fopen($filename , "rb"); if ( $fp ) { $filesize = $file['size'];
header("Cache-Control: post-check=0, pre-check=0"); header("Expires : 0"); header("Content-Type: " . $xtype); header("Content-Length: " . (string)($files ize)); header("Content-Transfer-Encoding: binary");
while ( !feof($fp) ) { echo(fgets($fp, 4096)); } fclose($fp); }
Assuming $xtype is defined correctly somewhere, I reckon IE is choking on the Content-Transfer-Encoding header. This is a MIME header -- it doesn't belong in an HTTP response at all. Go and read RFC 2616 some time.
You don't need to cast $filesize to a string -- PHP will do this for you anyway. And while you're at it, I suggest you replace the while() loop with a readfile() statement instead (<http://uk.php.net/readfile>).
Oh, by the way, filesize() is another useful function. That way you can get rid of the fopen and fclose instructions altogether.
Phil
-- phil [dot] ronan @ virgin [dot] net http://vzone.virgin.net/phil.ronan/
C16 wrote: I was using readfile but found a discussion that showed readfile to be '55%' slower than reading by chunks (in the readfile function desc on php.net infact). Also tried the header without Content-Transfer-Encoding and many other permutations from suggestions found via google but still the same result on IE.
"Philip Ronan" <in*****@invali d.invalid> wrote in message news:BF743985. 39633%in*****@i nvalid.invalid. ..
"C16" wrote: $fp = fopen($filename , "rb"); if ( $fp ) { $filesize = $file['size'];
header("Cach e-Control: post-check=0, pre-check=0"); header("Expi res: 0"); header("Cont ent-Type: " . $xtype); header("Cont ent-Length: " . (string)($files ize)); header("Cont ent-Transfer-Encoding: binary");
while ( !feof($fp) ) { echo(fgets($ fp, 4096)); } fclose($fp ); }
Assuming $xtype is defined correctly somewhere, I reckon IE is choking on the Content-Transfer-Encoding header. This is a MIME header -- it doesn't belong in an HTTP response at all. Go and read RFC 2616 some time.
You don't need to cast $filesize to a string -- PHP will do this for you anyway. And while you're at it, I suggest you replace the while() loop with a readfile() statement instead (<http://uk.php.net/readfile>).
Oh, by the way, filesize() is another useful function. That way you can get rid of the fopen and fclose instructions altogether.
Here's what works for me. I haven't tested your case with IE but you
might give it a try.
header('Content-Description: File Transfer');
header('Content-Type: application/pdf');
header('Content-Length: ' . filesize($file) );
// to download
header('Content-Disposition: attachment; filename=' . basename($file) );
// to open in browser
//header('Content-Disposition: inline; filename=' . basename($file) );
readfile($file) ;
--
*************** **************
Chuck Anderson • Boulder, CO http://www.CycleTourist.com
Integrity is obvious.
The lack of it is common.
*************** **************
Many thanks Chuck that did the trick. For interest the header I have that
works is now:
header("Cache-Control: post-check=0, pre-check=0");
header("Expires : 0");
header('Content-Description: File Transfer');
header("Content-Type: " . $xtype);
header("Content-Length: " . $filesize);
header('Content-Disposition: inline; filename=' . basename($filen ame)); Here's what works for me. I haven't tested your case with IE but you might give it a try.
header('Content-Description: File Transfer'); header('Content-Type: application/pdf'); header('Content-Length: ' . filesize($file) );
// to download header('Content-Disposition: attachment; filename=' . basename($file) );
// to open in browser //header('Content-Disposition: inline; filename=' . basename($file) );
readfile($file) ;
-- *************** ************** Chuck Anderson • Boulder, CO http://www.CycleTourist.com Integrity is obvious. The lack of it is common. *************** ************** This thread has been closed and replies have been disabled. Please start a new discussion. Similar topics |
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