Earlier quoted context omitted.
I'm not sure what you're comparing this to but 9,000 lines of well-written code in a powerful MVC framework is a very significant size. Because there is so little boiler-plate code that is being written, the utility-density of such a codebase can be extraordinarily high. 9,000 lines of PHP could amount to very little utility but when well-architected, there is a crazy amount that can be done with even 2,000 lines of…
Example: I'm working on a "large" CakePHP application (similar to Rails) with 24,000 lines of our own code, 57,000 lines of code from community plugins, and 240,000 lines of core framework code.
It could probably be rewritten down to about 10-20K lines (maybe less) if I had a spare month or two.