Link PHP site to authorize.net

We have a custom built simple php shopping cart that we would like to link to [login to view URL] for accepting credit card payments. We already have [login to view URL] account ready to go. We already have a home-grown php shopping cart. We just need someone that will link the checkout page to authorize.net. We would like the link to [login to view URL] to be via javascript so that we don't have to worry about PCI compliance. Ideal candidate should be proficient in both php and javascript (jquery) and also have experience in [login to view URL] We need someone that knows php and have done [login to view URL] before. Do not apply if you don't know how [login to view URL] works. We already have staff that knows php, and again our cart is custom built.