Pagination

total_rows This number represents the total rows in the result set you are creating pagination for. Typically this number will be the total rows that your database query returned.

I do not understand what's the purpose for?

$config['total_rows'] = 200;

I do not understand what is the total rows your database query returned?  and what's the difference between:

$config['total_rows'] = 200;

               and

$config['per_page'] = 20;


Thanks.  notes:  I already read the manual and still do not understand it.

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