Description:
------------
PHP 5.3.0 generates no output page in case a MySQL connection is closed without any identifier.

My solution for this problem was to change all PHP scripts to the following:

$link = @mysql_connect(...);
// some code here
mysql_close($link);

I noticed this error when I'm getting a blank page as output and when I successively inserted a die() command each line until I got a blank page (mysql_close() was the reason).

All software / scripts using MySQL has been affected (f.e. RoundCube).

Reproduce code:
---------------
@mysql_connect(...);
// some code here
mysql_close();

Expected result:
----------------
Page generation.

Actual result:
--------------
No page generation -- blank page.