Build a very simple script

I am looking for someone who can build me a small script in PHP. This script has to do the following: -Have an area to input a lot of domains. These domains are spaced like this: [login to view URL] [login to view URL] [login to view URL] -The script has to be able to allign the domains like this: '[login to view URL]', '[login to view URL]', '[login to view URL]' -Once completed, I just be able to download the generated file with the correctly alligned domains. -This script has to be able to convert a lot of domains at once (close to 1 million). Any other requirements can be added at a later time.