Compare two array's

[Jerry Preston]

Hi!,

I know that this is a no brainer, but I cannot not get it!  I want to
compare two arrays and delete the same values in one array.

foreach $j ( @a1 ) {
  foreach $p ( @a2 ) {
    $a2[ $p ] = undef  if $a1[ $j ] == $a2 $p ];
  }
}

What is wrong and is there a better, PERL way to do this?

Thanks,

Jerry