Description:
------------
Actually the PHP version encountered this apparently bug is 5.1.6, but I haven't found that option at the select box above.

On he other hand, on my developer machine (using windows xp/apache/php 5.2) I haven't the presence of this anomaly.

THE PROBLEM:
$_SESSION variables (the direct elements of $_SESSION), when "var_dumped", is noticed that they (each $_SESSION element) are being referenced somehow, because the presence of the '&' before the variable type on var_dump output. And because this phenomena I'm having big trouble, making clear I can't update server's php version.

Reproduce code:
---------------
var_dump($_SESSION);

Expected result:
----------------
array(9) {
  ["usr1d"]=>
  string(2) "68"
  ["tat"]=>
  string(1) "7"
  ["grupo"]=>
  string(5) "ativa"
  ["agenc"]=>
  string(2) "RJ"
  ["nam3"]=>
  string(23) "Manoel Carlos M. Corr?a"
  ["ema1l"]=>
  string(17) "mcarlos@ativa.net"
  ["idiom"]=>
  string(2) "pt"
  ["logado"]=>
  string(6) "logado"
  ["consulta"]=>
  &array(0) {
  }
}

Actual result:
--------------
array(9) {
  ["usr1d"]=>
  &string(2) "68"
  ["tat"]=>
  &string(1) "7"
  ["grupo"]=>
  &string(5) "ativa"
  ["agenc"]=>
  &string(2) "RJ"
  ["nam3"]=>
  &string(23) "Manoel Carlos M. Corr?a"
  ["ema1l"]=>
  &string(17) "mcarlos@ativa.net"
  ["idiom"]=>
  &string(2) "pt"
  ["logado"]=>
  &string(6) "logado"
  ["consulta"]=>
  array(0) {
  }
}