Calculate the highest duplicate integers of two associative arrays

Question

Given 2 associative arrays:

$fruits  = array ( \"d\" => \"lemon\", \"a\" => \"orange\", \"b\" => \"banana\", \"c\" => \"apple\" );
$fruits2 = array          


        

Answer 1

You're probably chasing the wrong solution. To find the highest duplicate in an array I'd use this (PHP 5.3+ syntax):

max(array_keys(array_filter(array_count_values($array), function ($i) { return $i >= 2; })))

Do this for both arrays and compare which result is higher. Trying to compare both against each other at the same time is too convoluted.