In spite of security issues that should be addressed before enabling file uploads, the actual mechanisms to allow this are straight forward. In this tutorial we will consider how to upload files to some directory on your Web server. We will also discuss security issues concerned with the file uploading.
Databases really are wonderful pieces of software, they allow us to organize our content logically and allow easy access, updating and searching. However, sometimes a database is overkill and is not needed for the task. For example, what if you had a list of sayings or quotes, and you would like to display a random one each time the page loads. This could easily be represented in a database; however, it is equally as easy to do it using flat files
This example browses a directory to list files and rename all files except the ones we do not want to list (as 'Thumbs.db' on windows or '..' and '.' which are not files as well as a directory itself).
Learn how to create a simple file upload system with your user can upload a file from the local computer to your webserver. As you will see it is not so complicated to implement this very usefull script. However it can be dangerous if every visitor can upload files without any restriction. You can easy have a situation that there is no more free space on your server.
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