Codeigniter get id on same form

Question

I have this problem,on the same form,i want to get the id from saved value. i already make some example on JS Fiddle

JS Fiddle :
https://jsfiddle.net/8a79wch7/

Detailed Process :
1.Input Value on Form 1-3.
2.Save Value to database and get the auto incremented ID
3.Click Next,and use the ID from previous saved value (this is the question i want to ask).
Any Tips for doing this ?

Answer 1

This will give you the last insert ID

$this->db->insert_id();

Just redirect the user with correct URL by getting the LAST_INSERT_ID

 redirect('controller/method/LAST_INSERT_ID', 'refresh');

The URL might Look something like this

http://example.com/controller/method/1