How Many Lines of Code?

I was curious how many lines of code were in PHPBB 3. I only wanted to know about the .php files.

find . -name ‘*.php’ -exec wc -l {} ; | awk ‘{ SUM += $1 } END {print SUM}’

The downside to this is that it includes whitespace and braces as lines, as well as comments. Oh well. It’s a good approximation.

Edit: There are 172,189 lines of code in phpbb3.