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Facing Header Problem - Programming - Nairaland

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Facing Header Problem by Nobody: 12:18am On Mar 29, 2013
Hi All,

I'm creating a website that creates a zip file and forces user to download of the created file.
I'm having trouble using the header to read the file correctly.

Below is my code:
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$zipLocation = "./filesFolder/$pageName.zip";

$flag = ZipArchive::OVERWRITE;
$flag = ZipArchive::CREATE;

$zip = new ZipArchive();
$zip->open($zipLocation, $flag);


$zip = null;

print "zipped<br/>";
//header("location: $zipLocation"wink;

header("Cache-Control: must-revalidate"wink;
header("Content-type: application/force-download"wink;
header("Content-Transfer-Encoding: binary"wink;
header("Content-disposition: attachment; filename=$pageName.zip"wink;

The zipfile gets created correctly but when the download dialog appears, the file size is wrong, and when it downloads it cannot be opened.

If I use the commented line it works correctly, but I would rather do it this way using the readfile.

Can any one tell the reason behind it?
Re: Facing Header Problem by Nobody: 10:33am On Apr 04, 2013
Set all headers before using print
Once you use print/echo/print_r etc. any header set thereafter is a joke

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