-> http://forum.textpattern.com/viewtopic.php?id=1043&p=2
Make your life developing plugins significantly easier:
1. Use zem�s tamplate.
2. insert row into txp_prefs table with
name = �plugin_cache_dir� and val = �/full/path/www/textpattern/tmp�
(you can let the other ones default to their respective default value)
3. create a directory /full/path/www/textpattern/tmp
4. drop your plugins (uncompiled) in that directory (make sure plugin name and plugin-filename correspond, e.g. zem_test should be in zem_test.php)
(Note: do not put zem_tpl.php in the same directory)