Tough comparison problem.

I've got two functions that return data in an array. I need to compare the individual elements of one array against the elements of another, and do something within an if-else statement. I'm using php3, so I don't have an actual "foreach" loop to pick out the array elements. Instead, I use: while(list(, $element)=each($array)){ Basically, here's what I need to do: Pull element 1 out of array 1, Compare it to all elements of array 2, Do something (if-else) based on the results of that comparison, Pull element 2 out of array 1, Compare it to all elements of array 2, and so on until all elements of array 1 have been compared to all elements of array 2. Any help is greatly appreciated!