Question

i need to connect for many databases
the primary connection in the database.php
and there is no problem with that

but the another connections must be in Model

i use this class

<?php
class user_model extends CI_Model {

        public function test()
        {
        $specific['hostname'] = "localhost";
        $specific['username'] = "root";
        $specific['password'] = "";
        $specific['database'] = "ci_forsyria";
        $specific['dbdriver'] = "mysql";
        $specific['dbprefix'] = "";
        $specific['pconnect'] = FALSE;
        $specific['db_debug'] = TRUE;
        $specific['cache_on'] = FALSE;
        $specific['cachedir'] = "";
        $specific['char_set'] = "utf8";
        $specific['dbcollat'] = "utf8_general_ci";

        $this->load->database($specific);

        //get data using datamapper
        $o = new db_user();
        $array = array();
        $o->where($array)->get();
        echo $num_rows = $o->result_count();
        }
}
?>

but the connection is not work
it’s still connect with the primary database

Error Number: 1146
Table ‘countries.ci_users’ doesn’t exist

Note: i don’t wont to but the another connections in the database.php file because i have more than 100 connections

Answer 1

In reaction to your comment to Repox, you most certainly must be using it wrong. His last solution must work, I use it myself continuously. Can you show what “new db_user()” is for an object, you might use the general database?

Note: leave the closing tag here, it’s a model:

For files that contain only PHP code, the closing tag (“?>”) is never
permitted. It is not required by PHP, and omitting it´ prevents the
accidental injection of trailing white space into the response.

Try this for an example, it should return 30 values from the countries table.

<?php
class user_model extends CI_Model {
    public function test()
    {
    $specific['hostname'] = "localhost";
    $specific['username'] = "root";
    $specific['password'] = "";
    $specific['database'] = "ci_forsyria";
    $specific['dbdriver'] = "mysql";
    $specific['dbprefix'] = "";
    $specific['pconnect'] = FALSE;
    $specific['db_debug'] = TRUE;
    $specific['cache_on'] = FALSE;
    $specific['cachedir'] = "";
    $specific['char_set'] = "utf8";
    $specific['dbcollat'] = "utf8_general_ci";

    $specific_db = $this->load->database($specific, TRUE);

    $example_query = $specific_db->query('SELECT * FROM countries LIMIT 0,30')->result();

    return var_dump($example_query);
    }
}