<?php // по значению // по ключу $result = $array1 + $array2;
Standard input is empty
array(6) { [0]=> string(4) "blue" [1]=> string(3) "red" [2]=> string(5) "green" [3]=> string(6) "yellow" [4]=> string(3) "red" [5]=> string(6) "purple" } array(3) { [0]=> string(4) "blue" [1]=> string(3) "red" [2]=> string(5) "green" }