Description:
------------
the assignment in function f to the simplexml-object changes the type of the righthand variable from int to string.



Reproduce code:
---------------
<?

$xml_str = <<<EOD
<?xml version="1.0" encoding="ISO-8859-1" ?>
<c_fpobel >
  <pos >
    <pos/>
  </pos>
</c_fpobel>
EOD;


function f ( $obj, $ii )
{
  $idx = (int) $ii ;
  $obj->pos["act_idx"] = $idx ;
  echo "that should be int not string<br>\n"  ;
  var_dump($idx) ;
}

$xml = simplexml_load_string ($xml_str) ;

f ($xml, 1) ;

?>

Expected result:
----------------
int(1) 

Actual result:
--------------
string(1) "1"