The worst case scenarios have the Eagles at 8-8.
So, let's take a look at their H2H matchups with each 6-8 team.
GB - W
SF - W
CAR - W
MIN - DNP - would be 8-4 in conference, Philly 7-5. Minn wins.
STL - DNP - would be 6-6 in conference, Philly 7-5. Philly wins.
So, if the Saints win vs. NYG this week and Green Bay wins over Minnesota, the Eagles are in I believe.
ETA - Wait - the Giants could be 8-8 with Philly and have the same div. and conf. records after a H2H split.
The common games (14) would have the Eagles at 6-8, NYG at 8-6. Giants would be in.
So a Saints W and a GB W doesn't push them in.