Function or loop for checkboxes

So I have for example 5 checkboxes named checkbox1, checkbox2 etc.

All of them have assigned parameter in other function ( checkbox1 has string text1 = t1, checkbox2 string text2 = t2 etc). Those strings can be random, but only gives true when they are as above.

Lets make that user select 3 checkboxes, click some button and....

How to make function/loop that check only those selected checkboxes and see if checkbox1 has text1 = t1 etc ?

I hope you understand me ;) thx