php - codeigniter join 2 table data

Question

hi everyone i am new to codeigniter and currently working on a small project in the project i am trying to join two tables and display there data in single table. i looked at the user guide that codeigniter has an i am not sure how this work

$this->db->join();

what table should be first and what id key should be firs. Can someone explain me more in detail about this please use examples if u can. I am trying to join credential table and tblanswers. Tnx for answering.

i have tried to code a function using this example:

$this->db->select('*');
$this->db->from('blogs');
$this->db->join('comments', 'comments.id = blogs.id');

$query = $this->db->get();

EDIT: instead of using join method in codeigniter is it possible to use a simple function to retrieve the two table data separately? all i want is to echo the data from database table on to a html table in my website page to be displayed is it possible to write two get functions to retrieve two tables separately ?

Answer 1

It doesn't matter what table is first... Simply:

<?php

$this->db->select('t1.name, t2.something, t3.another')
     ->from('table1 as t1')
     ->where('t1.id', $id)
     ->join('table2 as t2', 't1.id = t2.id', 'LEFT')
     ->join('table3 as t3', 't1.id = t3.id', 'LEFT')
     ->get();
?>