I'd hold up a bit before you start packing heat at Pat's or Geno's,
To my limited knowledge, the city of Philadephia is considered EXEMPT from regular PA gun laws/statues. Handguns or carry licenses may be allowed in PA except for the city limits of Philadephia.
I'd check with the state's AG office or the PA State Police HQ in Harrisburg.
If you are a NJ resident with a "Utah" carry permit, I'm sure some police officer or trooper may jam you up over it.
The sworn LE officers in my area no longer have any formal in-service training with the state's Div of Licensing. Few of them know all the related gun laws & permit-license requirements.
The Div of Licensing cut the funding about 3 years ago.