array diff with both values returned

Hello, Is there a good way to get the difference in two arrays and have both values returned? I know I can use array_dif to see what is in one and not the other but...I need it to work a bit differently. I have: $array1=array("name"=>"fred","gender"=>"m","phone="=>"555-5555"); $array2=array("name"=>"fred","gender"=>"f","phone="=>"555-5555"); I want to compare these two and have it return: array("gender"=>array("m","f")); I want it to return all of the differences with the key and then the value from array 1 and 2. How? Thanks!