Updated: 11 Dec 2006 16:25:10
(This document is probably out-of-date.)
=====================================================================

codebase/
    bin/ (generic command-line scripts and applications)
        acl.cli.php (Tool for managing the permissions of an ACL.inc.php based system)
        extract_gettext.pl (tool for exporting all the strings called by the _("Gettext function") )
        file_importer.php
        install.sh
        module_maker/ (scripts for generating modules)
            _config.inc.php
            form_template.cli.php
            list_template.cli.php
            module.cli.php
            skel/ (templates for generating modules)
                adm_form.ihtml
                adm_list.ihtml
                admin.php
                public_list.ihtml
                public.ihtml
                public.php
            sql.cli.php
            validation.cli.php
        pedit_permissions.sh
    css/ (generic CSS files to be included using lib/CSS.inc.php)
        admin.inc.css (CSS for the generic Strangecode administration system)
        codebase.inc.css (CSS for html output by codebase libraries)
        utilities.inc.css (generic CSS tools)
    docs/
        coding_standards.txt
        example_config.inc.php (an example of the _config.inc.php site-boot document)
        example_script_template.php
        example_virtualhost_directive.txt
        file_layout.txt
        gpl.txt
        revision_history.txt
        version.txt (the version number of this codebase)
    lib/
        ACL.inc.php (provides Access Control List functionality)
        App.inc.php (provides global application functionality: sessions, href/url/IP manipulation, directories)
        Auth_File.inc.php (file-based authentication system)
        Auth_SQL.inc.php (sql-based authentication system)
        AuthorizeNet.inc.php (routines for connection to authorize.net's advanced processing interface)
        Cache.inc.php (provides session-based caching functionality for quick retrieval of all PHP data types)
        CSS.inc.php (manage and deliver CSS data)
        DB.inc.php (minimal database abstraction layer)
        DBSessionHandler.inc.php (database session handler)
        Email.inc.php (provides email validation and sending functionality)
        FormValidator.inc.php (validation routines used to test incoming user data)
        Google_API.inc.php (class for connecting to, querying, and dealing with data of the Google API)
        Heirarchy.php (class for manipulation of hierarchies)
        Image.inc.php (manage printing of images related to db records)
        ImageThumb.inc.php (automated image thumbnailing routines)
        Lock.inc.php (db record locking system)
        MCVE.inc.php
        Navigation.inc.php (navigation element management class))
        PageNumbers.inc.php (class for managing and printing various elements of page numbers and pagination)
        PageSequence.inc.php (manage a sequence of steps and data from step form elements, like order checkout or signup)
        PayPal.inc.php
        PEdit.inc.php (page-by-page file-based content management system)
        Prefs.inc.php (class for semi-permanent storage of values)
        ScriptTimer.inc.php (timer for scripts)
        SortOrder.inc.php (class dealing with sorting of columns in database generated lists)
        SpellCheck.inc.php
        TemplateGlue.inc.php (functions that generating html)
        Upload.inc.php (class that manages uploading of files)
        Utilities.inc.php (functions for general utility: setting defaults, num/string functions, etc)
        Version.inc.php (db record versioning system)
    services/ (codebase scripts that are only useful when web accessible, i.e. to be used in a doc root)
        admins.php
        css.php
        lock.php
        login.php
        logout.php
        logs.php
        password.php
        phpinfo.php
        provides
        templates/
        versions.php
    tests/ (unit-based tests for all codebase libraries)

===================================================================================
Group of applications and related files, usually installed at /home/user/www.domain.com/


global/ (global level configuration and libraries for a group of sites/apps)
    config.inc.php (system-wide configuration)
    db_auth.inc.php (db-authentication for CLI scripts. chown'ed by user executing cron, NOT apache).

docs/ (documents specific to a group of sites/apps)
    schema.mysql

bin/ (global level command-line scripts)

admin/ (DocumentRoot for the admin application)
    _config.inc.php
    _templates/ (templates used for the admin docroot)
    _widgets/ (graphic elements used by the admin docroot)
    admins.php (list, view, edit, delete administrators)
    css.php (style sheets loader)
    index.php
    lock.php (manage locked db records)
    login.php (login to the admin system)
    logout.php (accessing logs-out an admin)
    logs.php (view logs)
    password.php (change password of currently logged-in admin)
    phpinfo.php
    versions.php (manage db record versions)

html/ (DocumentRoot of main site application)
    _config.inc.php (configuration options and defaults specific to this site. included first in each script)
    _templates/ (site specific templates. templates here override global codebase templates with same name)
    css.php (style sheets loader)