Php function methods

Prerequisites for the php function method: write a function as a private one, and then write a getset & nbsp; function to perform operations. Q: Why should I write it as private when it comes to calling? Is there any special purpose? ------ Solution ------------------ do not tangle with this problem too much. if people want to make it private, it means they need to consider security and then leave the get And se php function methods alone.

Premise: write a function as private, and then write a get/set function for operation.

Q: Why should I write it as private when it comes to calling? Is there any special purpose?

------ Solution --------------------
Don't tangle with this problem too much. people need to make it private, which means they need to consider security, and then leave only the get and set interfaces for you.