Install PHP 5.6 (Non Thread Safe or Thread Safe)
http://windows.php.net/download/
Just uncompress zip file in any folder. Like C:\PHP
Add php folder to you system PATH
Try set PATH=%PATH%;C:\PHP
Or just set PATH=%PATH%; (in C:\PHP)
Configure PHP
In php folder
Copy php.ini-development to php.ini
Enable extension_dir = "ext"
Enable:
extension=php_curl.dll
extension=php_gd2.dll
extension=php_mbstring.dll
extension=php_openssl.dll
Dowload Xdebug
http://xdebug.org/download.php (TS for Thread Safe)
Extract file into {php_folder}/ext/php_xdebug.dll
Add extension to php.ini
zend_extension = php_xdebug.dll