Description:
------------
When nesting foreach's on the same variable OR using it together with array_next() gives inconsistent behavour.

When you use foreach() on the same variable within another foreach() you would expect either of two different behavours.

Either:
A) They would share the same array pointer.
B) They would each have their own pointer

Documentation says method A is in use... but not always it seems.

Confirmed on PHP 5.0.4 and PHP 4.3.8 that this behavour is inconsistent.

Below is provided two examples which show that foreach will act in two different ways when used on a by-ref variable or a normal variable.

Reproduce code:
---------------
/ EXAMPLE 1:
$numbers = range(1, 10);
function printNumbers() {
    global $numbers;
    foreach ($numbers as $number) {
        echo $number . ', ';
    }
}

//$numbers =& $numbers; //<---- by reference (var.name does not matter) provides alternative behavour
foreach ($numbers as $number) {
    echo $number . ": ";
    printNumbers();
    echo "\n";
}

// EXAMPLE 2:
$numbers = range(1, 10);
foreach ($numbers as $skip) {
    echo $skip . ',';
    next($numbers);
}
echo "\n";

// alternative behavour when using by-reference
$numbers2 =& $numbers;
foreach ($numbers2 as $skip) {
    echo $skip . ',';
    next($numbers2);
}

Expected result:
----------------
The code should show the same result if iterating over a normal array as iterating over a array-by-reference.

Preferable both loops should show that a foreach has its own array-pointer (method B above) as the documentation clams.

Actual result:
--------------
EXAMPLE 2:
1,2,3,4,5,6,7,8,9,10
1,3,5,7,9