Visibility of the property or method?

Question

I have some problem
I have store the data in the database without encrypt but i am view the data encrypt method after 1 day and doesn't know the details.

I am using php and mysql, Could the experts please comment on this, and offer some advice?

Answer 1

The visibility of a property or method must be defined by prefixing the declaration with the keywords public, protected or private.
Class members declared public can be accessed everywhere.
Members declared protected can be accessed only within the class itself and by inherited and parent classes.
Members declared as private may only be accessed by the class that defines the member.