I have a website in PHP with a MySQL database. I get a few orders there every month and they are stored in the database: the customers fill out some info in an online form and that info is stored in the database.
Then I have another website where I have a PHP/MySQL application I am using for making my invoices at the end of the month. This is on another server and it is also another database.
What is the best way to get orders from the first website also in the database of the second website? Any suggestions?