Unique Array Values ​​- PHP?

Question

PHP

Good day. Faced a problem. There is this code:

$input = array(4,71, 72, 73, 74, 66,50,51,49,52,53,54,55,57,59,68,69,70,75,76,77,78,79,80);
  $inputShare= array (72,80,59,4,71);

how to drive all the elements that are not in $inputShare into another array, that is, remove from the first array what is in the second.

Answer 1

array_diff

Answer 2

$result = array_unique(array_merge($input, $inputShare));