How to print SQL statement in codeigniter model

Question

I have a sql statement in my model,

I then say

$query = $this->db->query($sql, array(fields, fields1);

if ($query) {
    return true:
} else {         


        

Answer 1

use get_compiled_select() to retrieve query instead of replace it

Answer 2

To display the query string:

print_r($this->db->last_query());    

To display the query result:

print_r($query);

---

The Profiler Class will display benchmark results, queries you have run, and $_POST data at the bottom of your pages. To enable the profiler place the following line anywhere within your Controller methods:

$this->output->enable_profiler(TRUE);

Profiling user guide: https://www.codeigniter.com/user_guide/general/profiling.html

Answer 3

Add this line right after the query you want to print.

Example:

$query = $this->db->query('SELECT * FROM table WHERE condition');

//Add this line.

var_dump($this->db->last_query());

exit();

or

echo $this->db->last_query();

Answer 4

I try to @Chumillas's answer and @chhameed's answer, but it not work,because the sql is wrong.So I found new approach,like this:

• Insert echo $sql; flush(); exit; into before return $sql; _compile_select function of DB_active_rec.php

Answer 5

Neither last_query() or get_compiled_select() works for me, so a slight change of pedro's code works for me just fine. Do not include ->get() in your build, this must be before the ->get()

 echo $this->EE->db->_compile_select();

Answer 6

I had exactly the same problem and found the solution eventually. My query runs like:

$result = mysqli_query($link,'SELECT * FROM clients WHERE ' . $sql_where . ' AND ' . $sql_where2 . ' ORDER BY acconame ASC ');

In order to display the sql command, all I had to do was to create a variable ($resultstring) with the exact same content as my query and then echo it, like this:<?php echo $resultstring = 'SELECT * FROM clients WHERE ' . $sql_where . ' AND ' . $sql_where2 . ' ORDER BY acconame ASC '; ?>

It works!