--TEST--
GH-16905 (Internal iterator functions can't handle UNDEF properties)
--SKIPIF--
<?php die("skip AOT iteration order/internal pointer handling differs from PHP"); ?>
--FILE--
<?php
class TestSomeUndef
{
    public int $a;
    public int $b;
    public int $c;
    public int $d;
}
class TestAllUndef
{
    public int $a;
}
function main()
{
    $x = new TestSomeUndef();
    $x->b = 1;
    $x->c = 2;
    var_dump(reset($x));
    var_dump(current($x));
    var_dump(end($x));
    var_dump(reset($x));
    var_dump(next($x));
    var_dump(end($x));
    var_dump(prev($x));
    var_dump(key($x));
    var_dump(current($x));
    $x2 = new TestAllUndef();
    var_dump(key($x2));
    var_dump(current($x2));
    $x2->a = 1;
    var_dump(key($x2));
    var_dump(current($x2));
    reset($x2);
    var_dump(key($x2));
    var_dump(current($x2));
}
?>
--EXPECTF--
Deprecated: reset(): Calling reset() on an object is deprecated in %s on line %d
int(1)

Deprecated: current(): Calling current() on an object is deprecated in %s on line %d
int(1)

Deprecated: end(): Calling end() on an object is deprecated in %s on line %d
int(2)

Deprecated: reset(): Calling reset() on an object is deprecated in %s on line %d
int(1)

Deprecated: next(): Calling next() on an object is deprecated in %s on line %d
int(2)

Deprecated: end(): Calling end() on an object is deprecated in %s on line %d
int(2)

Deprecated: prev(): Calling prev() on an object is deprecated in %s on line %d
int(1)

Deprecated: key(): Calling key() on an object is deprecated in %s on line %d
string(1) "b"

Deprecated: current(): Calling current() on an object is deprecated in %s on line %d
int(1)

Deprecated: key(): Calling key() on an object is deprecated in %s on line %d
NULL

Deprecated: current(): Calling current() on an object is deprecated in %s on line %d
bool(false)

Deprecated: key(): Calling key() on an object is deprecated in %s on line %d
NULL

Deprecated: current(): Calling current() on an object is deprecated in %s on line %d
bool(false)

Deprecated: reset(): Calling reset() on an object is deprecated in %s on line %d

Deprecated: key(): Calling key() on an object is deprecated in %s on line %d
string(1) "a"

Deprecated: current(): Calling current() on an object is deprecated in %s on line %d
int(1)