Everyone works offline. Even web developers. Maybe I worded my OP incorrectly. But what I meant is, wouldn’t it be nice to write PHP applications for offline use. Not just convert our existing CI web sites into offline versions. Sorry.
I would love to have offline applications as extensions to my web sites. And I have several sites that I’ve created to assist with data I use offline such as event registrations. I pay a high annual fee for me to import my data into mediocre event management software. I could save a ton and possibly make additional money selling customized PHP software. I also have a network of web sites collecting leads for my company. Each lead is assigned to one of our 150 locations in USA. Each store normally gets their leads via e-mail. But with offline software, we could have each office receive an alert and require they update us on the status of the lead. Customized software for my company could improve efficiency. Instead of having to use 5 different applications to run daily operations, have 1 customized application that is tailored for our needs.