Hogberg was placed on unconditional waivers by Philadelphia on Thursday for the purposes of terminating his contract, TSN's Chris Johnston reports.
Hogberg signed a one-year, two-way contract with the Flyers on Friday, Adam Kimelman of NHL.com reports.
Hogberg was reassigned to AHL Lehigh Valley on Saturday, Adam Kimelman of NHL.com reports.
Hogberg was promoted from AHL Lehigh Valley under emergency conditions Wednesday.
Hogberg (oblique) returned to practice Friday, Jordan Hall of NBC Sports Philadelphia reports.
Hogberg will be sidelined for 7-10 days with an oblique strain, Bill Meltzer of NHL.com reports.
Hogberg was assigned to AHL Lehigh Valley on Sunday.
Hogberg was promoted to the taxi squad Saturday, per CapFriendly.
The Flyers loaned Hogbert to HC Vita Hasten of the Swedish Allsvenskan league Thursday.
Hogberg signed a three-year, entry-level contract with the Flyers on Saturday, Bill Meltzer of NHL.com reports.