--TEST-- Test array_unique() function : basic functionality --FILE-- "one", 1 => "one", 2 => "two", '2' => "two"); var_dump( array_unique($input) ); // mixed array $input = array("1" => "one", "two", "one", 2 => "two", "three"); var_dump( array_unique($input) ); echo "Done"; ?> --EXPECT-- *** Testing array_unique() : basic functionality *** array(2) { [0]=> int(1) [1]=> int(2) } array(2) { [1]=> string(3) "one" [2]=> string(3) "two" } array(3) { [1]=> string(3) "one" [2]=> string(3) "two" [4]=> string(5) "three" } Done