I am trying to find a formula that looks at a range of cells, a2:b11, and if
a cell in the range has a value Phil and its adjacent cell in the other
column
has a value Tony then AA1=1, if no adjacent cells match the criteria AA1
=0. The names can be in either column.

For instance...

A B
Phil Tony would give AA1 value 1
Tony Phil would also give AA1 value 1
xxx yyy would give AA1 value 0

Thanks