matrix type of checkbox insert

I am having multiple checkboxes like matrix formatted frames with checkboxex. each checkboxes have one value. 
when i submit the button i want to insert that checkbox values and that corresponding regno in DB.

Regno            checkbox values 

1001010        5001,5002,5003,5004,5005

I want to insert the tables in the format of
insert into stud values( 1001010,5001);
insert into stud values( 1001010,5002);
insert into stud values( 1001010,5003);
insert into stud values( 1001010,5004);
insert into stud values( 1001010,5005);

here checkbox is the post item
how do i get that corresponding regno as Post item?
Need help?

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