If you are creating a product that will be installed by your customers on their own web hosting accounts, PHP is a no brainer due to it's large install base, an

If you are creating a product that will be installed by your customers on their own web hosting accounts, PHP is a no brainer due to it's large install base, and you'll want to be sure your product works with PHP 5.3. If you are simply picking a language for your own internal use, go with what you like and know.