Manual Content and User Note Separation
The manual content and the user notes are separated to
php_manual_notes.chm. There were several resons
to do this, including:
This way you can update the user notes and the manual independently
as you need.
You can have more than one language of the manual, while only
need to have one notes file. All the CHM files need to be in the
same directory, and all translations need to share the same
preferences if you would not like to have more then one notes file.
You can bookmark manual pages with notes, or just a notes part
of a page separately.
You can "turn off" user note display and user note search results by
simply deleting php_manual_notes.chm, moving it
out of the directory or renaming it.
All these benefits lead us to provide the manual the way you can see it
right now. This distribution had the effect on the full text search that
you get search results from the manual content and from the user notes
as separate ones. The "Location" column shows the source of the result,
also enabling you to "add precedence" to manual content results with
ordering the results by "Location". User note page titles are also
prefixed with "N:" to make them easily distinguishable in the favorites
list (there's no location info in the favorites list).