That would generally be related to redirecting content from another source, so it wants to change the file/content type that the browser is expecting as such.
For example, the one thing I have is checking if someone is logged in to a site, before sending them a word document directly from a PHP script - idea is partly so they wouldn't be able to know/see the actual file path/URL, but the PHP script tells the browser it's receiving a word document, and then passes it through to the browser:
$PhysicalFileName = "cnsttn/constitution.doc";
header('HTTP/1.1 200 OK', True, 200);
header('Content-Description: File Transfer');
header('Content-Type: application/msword');
header('Content-Disposition: attachment; filename="constitution.doc"');
header('Content-Transfer-Encoding: binary');
header('Expires: 0');
header('Cache-Control: must-revalidate, post-check=0, pre-check=0');
header('Pragma: public');
header('Content-Length: ' . filesize($PhysicalFileName));
// readfile() will simply pass the file from the drive straight to the
client.
readfile($PhysicalFileName); exit;//that last statement closes the browser/server transaction/communication as such
Jacob Kruger Blind Biker Skype: BlindZA '...fate had broken his body, but not his spirit...'----- Original Message ----- From: "Alex Hall" <mehgcap@xxxxxxxxx>
To: "programmingblind" <programmingblind@xxxxxxxxxxxxx> Sent: Saturday, April 30, 2011 2:34 AM Subject: offering downloads of blobs (mysql) with php
Hi all, I have a database project due next Wednesday. It is done, but I am adding things since I have the time (and I really don't want to do my calc homework right now). One of my databases is for podcasts, the other for articles. The articles one is fine; I can serve that content since it is stored in a longtext field, so I need only echo it to the page. The podcast table is different, though. I looked up this stuff already, but was taken to a script that was using a header() function (php) and giving it mime information about the file, then it echoed the blob, and that was it. I am wondering: 1. What is all this mime stuff about? 2. My only experience with files and webpages is putting a link to a file, even a binary one, and letting the browser take care of it. Why, then, did the script I found echo the blob and leave it at that? It was not generating an html page with a link; the link was to download.php, and download.php was the one doing all this with the mime information and the echoing of the blob. 3. Does anyone know of a good resource to find out more about serving blobs so users can download them? Most of what I find is about displaying images stored as blobs, but I want to offer a download link for a given podcast's media file. Thanks in advance. -- Have a great day, Alex (msg sent from GMail website) mehgcap@xxxxxxxxx; http://www.facebook.com/mehgcap __________ View the list's information and change your settings at //www.freelists.org/list/programmingblind
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