Connecting Database in codeigniter 2.02

How do开发者_Go百科 i connect database in codeigniter because there is not any core array in autoload.php i am trying to search it there not any core array as like pervious version

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In application/config/database.php you place the settings to connect to your DB, for ex:

$db['default']['hostname'] = '127.0.0.1';
$db['default']['username'] = '';
$db['default']['password'] = '';
$db['default']['database'] = '';
$db['default']['dbdriver'] = 'mysql';
//and so on...

Then, you might want to autoload it to have always at hand and avoid calling the library often. You put it in the

$autoload['libraries'] = array('database');

which is on line 55 of application/config/autoload.php

Then you can just call it in any controller or method (or custom libraries) with

//$this->db->...  // method may vary

look in User Guide on database driver for all details and methods and the useful Active Record (sortof), and if you've problem just ask.