Uploading/Downloading files stored in MySQL database


Posted on 16th Feb 2014 07:03 pm by admin

Hey all,

This problem just came up in my website and I'm having a hard time figuring out what's wrong. I have a intranet portal running (custom built) and I'm storing all different types of documents in a mysql database. Previously, I was able to read the contents of the file into the DB and then pull it out and the file would open just fine. Now, for some reason, everything except PDF files come across as gibberish.

I've gone ahead and tried to upload files that I know are working, I've switched from base64_encode to addslashes, tried to do a mysql COMPRESS and UNCOMPRESS when uploading a new file....nothing. I'm just not sure why all of a sudden this stopped functioning properly (haven't done any upgrades to the server, db or code)

Anyone have any ideas I can try?

For reference, the code for inserting and downloading follows:
insert:

case "Add File":
$fp = fopen($_FILES['userfile']['tmp_name'], 'r');
$content = fread($fp, filesize($_FILES['userfile']['tmp_name']));
$content = base64_encode($content);
mysql_query("INSERT INTO intranet.documents(id, type, contents, content, name, category, updated) VALUES ('', '".$_FILES['userfile']['type']."', '".$content."', COMPRESS('".$content."'), '".addslashes(str_replace(" ", "_", strtolower($_FILES['userfile']['name'])))."','".$_POST['category']."', '".date("Y-m-d H:i:s")."')") or die(mysql_error());
fclose($fp);
redirect("?action=".$_GET['action']);
break;


download:

$_SESSION['content'] = NULL;
$result = mysql_query("SELECT name, type, contents FROM intranet.documents WHERE ID = '".$_GET['id']."'") or die(mysql_error());
$_SESSION['content'] = base64_decode(mysql_result($result, 0, "contents"));
header("Content-Disposition: attachment; filename=".mysql_result($result, 0, "name")."");
header("Content-type: ".mysql_result($result, 0, "type"));

No comments posted yet

Your Answer:

Login to answer
214 Like 19 Dislike
Previous forums Next forums
Other forums

PHP, jAVASCRIPT setting input values, why isn't it working?
Hi:

I am calling this javascript:
<script language="javascript">

help me, how to find text on an external html site using PHP
Would anyone know how to search an external html file for a work or phrase ?

I was thinking s

Option box to change variable
Hello, i need help by making a script!

I need to write a file with option box, so a dropdown

Page Reload
I am having issues getting a page to reload after I submit data to a database. This form should inp

Members Only
Hi all, for my website i have a members area only which on members can veiw, but at the moment anyon

downloading a file as HTML
Hi.
I'm rather confused with forcing a download. I just want to save dynamic content (from $_SESS

Need to write a cookie with a url var
Not sure if its possible, but I need to write a cookie with a url.

So this would write 2232 a

Open link with largest int string first
I have the following links i would like to open either all at once or one-by-one. How would i procee

Include a php
Hello,

I'm trying to include a function that shows the recent searches.
Example I have <

Php - mysql store data and use it later?
Hi, i' making a login page at the moment, however my username + password is stored many different pl

Sign up to write
Sign up now if you have flare of writing..
Login   |   Register
Follow Us
Indyaspeak @ Facebook Indyaspeak @ Twitter Indyaspeak @ Pinterest RSS



Play Free Quiz and Win Cash