Prevent changing checkbox value

As I've found no other answer over the web, I'm asking here :

I'd like to find a way to prevent people from changing the checkboxes' values.

I'm using serialize() and unserialize() to set and get checkboxes data over my database, and the problem is if someone changes the value of the checkbox (using Chrome or Firefox dev tools by exemple) it messes my retrieved values. So I'd like to know if it is possible via PHP.