The WordPress bootstrap process is only scarcely documented, with only a very select group of developers that truly know the ins and outs and historical reasons behind the individual bootstrapping steps.

This session presents a detailed overview of the exact execution flow that launches your WordPress site on each page request, giving you detailed insights into:

• the order in which files are loaded
• how & why the different global constants are set up
• what functionality is "pluggable" and can be replaced by custom implementations
• how the database is connected
• how caching is set up
• how localization is set up and loaded
• how a multisite (network) is identified and loaded
• how the Plugin API is initialized