We got a taxi booking project. We have to make and...

# random

[a2.codeslayers]

We got a taxi booking project. We have to make android and ios apps for it.Also an admin back end. These project doesn't need a driver app like uber, instead bookings are shown in admin panel. We have developed apps for ios and android in there native language. And used codeigniter-php in back end. But we used independent php files with POST to register bookings in database and also for signing up and logging in users.

The question is, is there a better way to do this with codeigniter rather than independent php files to write to database. What is the best language to use for this project if php is not the best.
Also we are planning to deploy webapp in a shared hosting, doest it leads to any performance issues

Thank you