Hi has anyone created a script to compare 2 arrays like this :  compare the 2 arrays - the items that are only in array 1 go into a new array - the items that are only in array 2 go into another new array - the items that are in both arrays go into another new array like this :  Global $Compare1[10] = [1, 3, 5, 6, 7, 8, 9, 10, 11, 12] Global $Compare2[10] = [1, 2, 3, 4, 5, 6, 8, 10, 12, 13] $whatsLeftOfCompare1 = [7, 9, 11] $whatsLeftOfCompare2 = [2, 4, 13] $whatsInBoth = [1, 3,