Need a php redirect script

Hi, I'm looking for someone who can write me a php script which I can have on a page of my site that will redirect at random to a list of links that I provide. For example I want anyone who goes to my specific domain say [login to view URL] to be redirect to one of the links that I provide in the script. In the script I want to be able to list a an array of domains like below [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] [login to view URL] So anytime someone goes to [login to view URL] they will be redirect to one of the domains I listed above in the script at random. It is important that all the domains that I list get the same amount of redirects, it won't matter which domain each person goes to but each domain must receive the same amount of traffic so if we have 120 visits to [login to view URL] than I will need each link to be visited by 20 of the unique people if there are 6 links. If you have any questions or need my to clarify any other details let me know. Thanks