I'm using LessPHP 0.3.8 + Bootstrap 2.2.2
The LessPHP seems to generate broken styles; see my example at http://alexeynekrasov.ru/test/lessphp.php
The left column is generated by LessPHP, the right column is generated by Bootstrap original site. Class .btn
(and more) is broken.
Download and run my complete example: http://alexeynekrasov.ru/test/test.rar
Update lessphp to the latest (0.3.9) and it works fine.