- mymodule/core/modules/ contains module descriptor file modMyModule.class.php
- mymodule/core/triggers contains triggers provided by module
- mymodule/admin/ contains pages to setup module
- mymodule/class/ contains PHP class files provided by module
- mymodule/css contains CSS files provided by module
- mymodule/docs to provide doc and licence files
- mymodule/img contains images files provided by module
- mymodule/langs/xx_XX contains language files for language xx_XX (try to put at least en_US)
- mymodule/lib contains libraries provided and used by module
- mymodule/scripts to provide command line tools or scripts
- mymodule/sql contains SQL file provided by module to add new tables or indexes
- mymodule/themes/mytheme if module provide its own theme/skin
- mymodule/* contains php pages (note that you can also add subdir for php pages)