A client of ours has a web application written in PHP, but has commissioned us to develop the front end for the website but wants us to integrate the current PHP web application (a package tracking system) into the Wordpress site (our cohoice). What's the best practice to do this? Making the existing application into a plugin is that an approach? ..
Right now the existing web application , requires login and then establishes a session with the user. Can this web app co-exist within Wordpress or do we just need to it in or just link to it as a separate app.
are there any best practices for this sort of thing?