This function takes no parameters
A Wee Tiny Blog needs a MySQL database in order to work. However, you might want to use this connection yourself for various reasons. In order to access this connection, simply call this method to retrieve a copy of the mysqli object A Wee Tiny Blog is using.
To attach a connection you've made yourself to any A Wee Tiny Blog object, use UseConnection
When called, this method returns a copy of the MySQLi object stored within the A Wee Tiny Blog object. If you haven't connected it to a database yet, it returns NULL instead.