hello, i read one column from two different flat files and stored the result into two associative arrays, now I have to comapare these two arrays. If I use foreach loop, it will be very inefficient as it will loop thru n*n times. if they dont have common values then I have to store into another array. I am not sure how to do that. can anyone suggest something.

In reply to How to compare two associative arrays efficiently by viveks_19

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