Description:
------------
Native pass-by-reference makes elements of an array referenced. Tested with mysqli_stmt::bind_param. This results in inadvertent changes to follow up code, e.g. results from array_diff()

I don't know if it's intended behaviour or if not then which component this is related to. Additionally, should the reference leak through array_diff()?

Test online: https://phpize.online/?phpses=6fd2785a4408856aa1fc2aba245d05bc&sqlses=null&php_version=php8&sql_version=mysql57

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

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$mysqli = new mysqli('localhost', 'user', 'password', 'test');

function a(&$a, &$b, &$c)
{
    $a = 3;
}

$foo = [1, 2, 3];
$bar = [3, 4, 5];

$stmt = $mysqli->prepare("SELECT ?,?,?");

// What's the difference between this
$stmt->bind_param('sss', $foo[0], $foo[1], $foo[2]);
// and this
a($foo[0], $foo[1], $foo[2]);

$diff = array_diff($foo, $bar);
$foo[1] = 'hi';
var_dump($diff);

Expected result:
----------------
array(1) {
  [1] =>
  int(2)
}

Actual result:
--------------
array(1) {
  [1] =>
  string(2) "hi"
}