Spinky ZFV is Not PHL. Its at 30th St, you need to take a different train if you go to PHL in order to get to ZFV.

Im sure that someone who is more aware of the systems can provide the correct info, but be rest assured that although there is a train and maybe Amtrak even that runs thru PHL that the ZFV station is not at the Airport and taking a train from the Airport and not starting at the ZFV station will most likely get your CO res cancelled just the same.

I wasnt sure if you were aware that ZFV and PHL are 2 different places, or simply knew it and meant the Train station all along and not the airport.