Question

I’m looking for the opposite of the function array_intersect, basically a function that returns the element that are not present in each of the provided arrays.

Example:

$a1 = array(1, 2, 3);
$a2 = array(2, 3, 4);
$result = array(1, 4);

I know how to do it programmatically (I just have two array so array_merge(array_diff($a1, $a2), array_diff($a2, $a1)) would do the job), but I’d like to know whether there’s a built-in function that I can’t find.

Thanks.

Answer 1

No there isn’t builtin for that

I believe a language will never provide such a builtin function