Description:
------------
The bugreport
http://bugs.php.net/bug.php?id=33786
has just the status "bogus". That is a bug, because
session_encode will fail badly and a whole web - app will suffer (I've seen one report that someone lost his job due to sessions not being restored properly ...)


Reproduce code:
---------------
<?php
for ($i=33;$i<255;$i++) {
	@session_destroy();
	@session_start();
	$_SESSION["validname"]="valid value";
	$_varname="v".chr($i)."ar";
	$_SESSION[$_varname]=$i;
	$data=session_encode();
	if (strlen($data)==0) 
	echo "when varname is ".$_varname.
			 " session has ".count($_SESSION).
			 " entries that are encoded with ".strlen($data)." bytes ".
			 //" as '".$data.
			 "'<br />";
}	// for		 
?>

Expected result:
----------------
A (fatal) error message on using | within the array index name for $_SESSION

Actual result:
--------------
when varname is v|ar session has 2 entries that are encoded with 0 bytes '