How to use the paging function inside a switch statement

How do I use the paging function inside a switch statement?
I created a form

The structure selected on the query.php page is:
Switch ($_post[' query ']) {

Case "Name":
Find the database here and display it;
Case "Address":
Find the database here and display it;
}

How do I add paging after I find a database under [case ' name '] and [cases ' address]?
Due to paging, you need to $_get[' page ' to pass the number of pages, but query.php page also has $_post variable, how to handle it? Please advise me

------Solution--------------------
You can write a function in query.php to pass the page number and the lookup type as arguments to the function. The function finds the data for each page based on the lookup type and number of pages. It is then called after a case, or after a $_get. You can also write a function to find data in other PHP files, include in, call function. $_post does not affect the $_get bar, you post it must show the first page, you can set the function parameter defaults to the first page

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