Breck Yunits' Scroll

Some writing about probability, programming, economics and life.

Metrics for Programmers

March 16, 2010 — I wrote a simple php program called phpcodestat that computes some simple statistics for any given directory.

I think brevity in source code is almost always a good thing. I think as a rule your code base should grow logarithmically with your user base. It should not grow linearly and certainly not exponentially.

If your code base is growing faster than your user base, you're in trouble. You might be attacking the wrong problem. You might be letting feature creep get the past of you.

I thought it would be neat to compute some stats for popular open source PHP applications.

My results are below. I don't have any particular profound insights at the moment, but I thought I'd share my work as I'm doing it in the hopes that maybe someone else would find it useful.

Name Directories Files PHPFiles PHPLOC PHPClasses PHPFunctions
../cake-1.2.6 296 677 428 165183 746 3675
../wordpress-2.9.2 82 753 279 143907 149 3827
../phpMyAdmin-3.3.1-english 63 810 398 175867 44 3635
../CodeIgniter_1.7.2 44 321 136 43157 74 1211
../Zend-1.10 360 2145 1692 336419 42 11123
../symfony-1.4.3 770 2905 2091 298700 362 12198

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