Description:
------------
phpinfo() outputs differently than if its contents are being captured with output buffer.

Test script:
---------------
Actual result:
*Example1:
<?php
ob_start();
phpinfo();
ob_end_flush();
?>
*Example2:
ob_start();
phpinfo();
$i=ob_get_clean();
echo $i;
?>

Expected Result:
*Example 1:
<?php
phpinfo();
?>
*Example 2:
<?php
ob_start();
ob_end_flush();
phpinfo();
?>

Expected result:
----------------
* Apache Environment: HTTP_CACHE_CONTROL is not present.
* HTTP Headers Information: HTTP Request Headers: Cache-Control is not present.
* HTTP Headers Information: HTTP Response Headers: Keep-Alive, Connection, Transfer-Encoding, Content-Type are present.


Actual result:
--------------
* Apache Environment: HTTP_CACHE_CONTROL is present.
* HTTP Headers Information: HTTP Request Headers: Cache-Control is present.
* HTTP Headers Information: HTTP Response Headers: Keep-Alive, Connection, Transfer-Encoding, Content-Type are not present.