array array_intersect_uassoc ( array $array1 , array $array2 [, array $... ], callable $key_compare_func );
array_intersect_uassoc function returns an array containing all the values of array1 that are present in all the arguments. Note that the keys are used in the comparison unlike in array_intersect().
If you listen carefully, you can hear the 1s and 0s flowing in your computer.
More coming soon…keep checking back.