--TEST-- Test array_merge() function : basic functionality --FILE-- 1, 'b' => 2, 'c' => 3); var_dump(array_merge($array1, $array2)); var_dump(array_merge($array2, $array1)); echo "Done"; ?> --EXPECT-- *** Testing array_merge() : basic functionality *** array(6) { [0]=> unicode(4) "zero" [1]=> unicode(3) "one" [2]=> unicode(3) "two" [u"a"]=> int(1) [u"b"]=> int(2) [u"c"]=> int(3) } array(6) { [u"a"]=> int(1) [u"b"]=> int(2) [u"c"]=> int(3) [0]=> unicode(4) "zero" [1]=> unicode(3) "one" [2]=> unicode(3) "two" } Done