Below is a documented flow chart of the working of bitweaver Kernel

A php entry file is a file called by the browser as a starting point - for example, index.php, is the default php entry file.

1. Every php entry file first calls tiki_setup_inc.php. This may change at a later stage, but for now we are just documenting what happens.
2. tiki_setup_inc.php defines the constants TIKI_ROOT_PATH and TIKI_ROOT_URL. These two constants are here as they are the basis for every other constant. Where possible, the defaults for these constants should be automatically defined through functions. Next is kernel/setup_inc.php.
3. kernel/setup_inc.php is dependant on TIKI_ROOT_PATH and TIKI_ROOT_URL and defines other base constants like TIKI_PKG_PATH, KERNEL_PKG_PATH, KERNEL_PKG_URL, etc. PHP tweaks and global variables are initialised.
4. kernel/TikiLib.php is called. TikiLib is built from the following classes:
   -kernel/TikiLib.php
   -kernel/TikiSystem.php
   -kernel/TikiSmarty.php
   -kernel/TikiBase.php
   -kernel/TikiDB.php

Now, I'll attack this backwards:

• kernel/TikiDB.php is dependant on KERNEL_PKG_PATH, DEBUG_PKG_PATH and adodb.in.php. TikiDB requires $db_tiki from local.php to initialise.
• kernel/TikiBase.php is dependant on KERNEL_PKG_PATH, TIKI_THEME_PATH, TIKI_STYLES_PATH, TIKI_PKG_PATH
• kernel/TikiSmarty.php is dependant only on KERNEL_PKG_PATH
• kernel/TikiSystem.php is dependant only on KERNEL_PKG_PATH
• kernel/TikiLib.php is dependant only on KERNEL_PKG_PATH and TIKI_PKG_PATH