Description:
------------
When using PHP8 ReflectionFunction::getNumberOfParameters() for array_uintersect returns 2 and also they look like this:

array(2) {
  [0]=>
  object(ReflectionParameter)#2 (1) {
    ["name"]=>
    string(5) "array"
  }
  [1]=>
  object(ReflectionParameter)#3 (1) {
    ["name"]=>
    string(4) "rest"
  }
}

But for PHP7 it was looking like this:

array(3) {
  [0]=>
  object(ReflectionParameter)#2 (1) {
    ["name"]=>
    string(4) "arr1"
  }
  [1]=>
  object(ReflectionParameter)#3 (1) {
    ["name"]=>
    string(4) "arr2"
  }
  [2]=>
  object(ReflectionParameter)#4 (1) {
    ["name"]=>
    string(26) "callback_data_compare_func"
  }
}

Change itself isn't documented on docs, not sure why it was changed, but also when executing this function it works as it was previously.

Test script:
---------------
<?php

$array1 = array("a" => "green", "b" => "brown", "c" => "blue", "red");
$array2 = array("a" => "GREEN", "B" => "brown", "yellow", "red");

print_r(array_uintersect($array1, $array2, "strcasecmp"));

$reflection = new ReflectionFunction('array_uintersect');
var_dump($reflection->getNumberOfParameters());
var_dump($reflection->getNumberOfRequiredParameters());
var_dump($reflection->getParameters());

Expected result:
----------------
Array
(
    [a] => green
    [b] => brown
    [0] => red
)
int(3)
int(3)
array(3) {
  [0]=>
  object(ReflectionParameter)#2 (1) {
    ["name"]=>
    string(4) "arr1"
  }
  [1]=>
  object(ReflectionParameter)#3 (1) {
    ["name"]=>
    string(4) "arr2"
  }
  [2]=>
  object(ReflectionParameter)#4 (1) {
    ["name"]=>
    string(26) "callback_data_compare_func"
  }
}

Actual result:
--------------
Array
(
    [a] => green
    [b] => brown
    [0] => red
)
int(2)
int(1)
array(2) {
  [0]=>
  object(ReflectionParameter)#2 (1) {
    ["name"]=>
    string(5) "array"
  }
  [1]=>
  object(ReflectionParameter)#3 (1) {
    ["name"]=>
    string(4) "rest"
  }
}