Disney's character of King John was created for their animated film of Robin Hood, released in 1973 and with cartoon animals taking all the human parts. King John was depicted as a tiger, whilst Robin was portrayed as a cunning fox.
Disney robin hood
The Lion King
He was not. The word "phony" is not recorded as having been used at all until 1900, about 684 years after King John died. "The Phony King of England" is a line from a song in a Disney sound-track.
John Disney was born in 1779.
John Disney died in 1857.
The Lion King
Disney made The Lion King.
John Disney - rector - died in 1730.
John Disney - rector - was born in 1677.
Disney's Lion King had an all-star vocal cast with Elton John and Timm Rice being some of the biggest names to sign on to production. Hans Zimmer composed the score to round out an amazing team of musical talent.
King of the Hill is a TV show not a movie and it's not made by Disney.
As far as I know there is no historical reference that attributes the trait to King John. It appears to be a total fabrication.