Where is uploaded file save php

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Cons of Storing Files into Database The size of a binary file differs among databases. Storing the files in the database can make the database much larger. Thus increases the size of the database.

The level of knowledge required to maintain a database goes up in proportion to the size of the database, i. Therefore it increases the maintenance cost to the business. Larger database consumes more memory as they try to do stuffs into memory as much data as possible. The code that stores files into the database can be a problem. Browsers aren't consistent in their mime-types, so you'll never catch all the possible combinations of types for any given file format.

It can be forged, so it's crappy security anyway. For example, images can quickly and easily be run through imagegetsize and you at least know the first N bytes LOOK like an image. That doesn't guarantee it's a valid image, but it makes it much less likely to be a workable security breaching file. One should move the uploaded file to some staging directory. Then you check out its contents as thoroughly as you can. THEN, if it seems kosher, move it into a directory outside your web tree.

Any access to that file should be through a PHP script which reads the file. Putting it into your web tree, even with all the checks you can think of, is just too dangerous, imnsho. There are more than a few User Contributed notes here with naive bad advice.

Be wary. Turning zlib compression to OFF seems to solve the issue. Don't have time to dig in and see who's at fault, but wanted to save others the hassle of banging their head on this one. Hope this helps anyone. Your binary files may be uploaded incorrectly if you use modules what recode characters.

A little codesnippet which returns a filesize in a more legible format. You should not have any directories within your website root that has the permissions required for file upload. If you are going to do a file upload, I recommend you use the PHP FTP Functions in conjunction with your file field, that way the files are transferred to a remote FTP location separate from your server. This is simpler method of checking for too much POST data alternative to that by v3 from sonic-world.

MIME type can be faked. This mime type is however not checked on the PHP side and therefore don't take its value for granted. When file names do contain single quote parts of the filename are being lost. I had to set the following to get it to work: 1. Now create a file called downloads. Now on this page, the files information from the database are listed each along with its size in KB and number of downloads. There is also a download button against each file. What remains now is the code that actually downloads the file from our uploads folder.

Let's write the code right away. So when you click on the download link of a file, that file's id is sent to the filesLogic. Then we proceed to set some headers and finally respond with the file to the user using the readFile function in PHP. After the file is downloaded, we update the downloads count for that particular file in the database. That's about it with file upload and download. You can further customize it to build cool PHP applications.

Thanks very much for following.