If your PDO scripts are crashing Apache after installing xampp 1.7 for windows all you need to do is:
- download this
http://windows.php.net/downloads/releases/php-5.2.11-nts-Win32-VC6-x86.zip - unzip
- copy libmysql.dll into xampp\apache\bin and xampp\php
- restart apache
All should be good now.
