in reply to compare 2 arrays for intersect diff and commmon values
G'day rasgolla,
Welcome to the monastery.
"I am getting output as ..."
Please show actual output between <code>...</code> tags. That way we can see exactly what you're seeing.
Please also show expected output (again, between <code>...</code> tags). Then we can see the difference between what you got and what you were trying to get.
From what you've posted, if
DEBUG( "DEBUG: - difference links values $difference[0] " );
is producing
DEBUG: - difference links values ARRAY(0x34276a0)
but you actually wanted something like
DEBUG: - difference links values val1 val2 ... valN
then you'll need to dereference the $difference[0] arrayref:
DEBUG( "DEBUG: - difference links values @{$difference[0]} " );
That possibly raises a few questions, most of which may be answered by "Perl references short introduction".
If you have further questions, please follow the guidelines in "How do I post a question effectively?". Also, using a logical indentation, will make your code more readable for both you and us: that equates to less errors by you and, for us, a greater inclination to actually read your code.
-- Ken