Description:
------------
i have tested the virtual("file2.php"); feature in php 4.3.3. now it behaves like an include in every way. 
but i think it would be better to parse the script as there were no calling script, so it were called through apache, so that the variable $test would not be changed in the called script and the $_SERVER["PHP_SELF"] has to be the called script, not the calling.
so it would be good to add a new parameter to virtual() to set some ini options for the called script (espacially the "open_basedir" and "safe_mode" options, or in the apache per directory settings of the called script) to allow customers to add there own php scripts in a kind of more controlled environement.

Reproduce code:
---------------
<!-- called.php -->
<?php
	echo("this is: " . $_SERVER["PHP_SELF"] . "<br>");
	
	$test = "variable has changed";
?>

<!-- per_include.php -->
include:<br>
<?php
	$test = "variable set";
	
	include("called.php");
	
	echo($test);
?>

<!-- per_virtual.php -->
virtual:<br>
<?php
	$test = "variable set";
	
	virtual("called.php");
	
	echo($test);
?>

Expected result:
----------------
include:
this is: /path/per_include.php
variable has changed

virtual:
this is: /path/called.php
variable set

Actual result:
--------------
include:
this is: /path/per_include.php
variable has changed

virtual:
this is: /path/per_virtual.php
variable has changed