[CI]多数据库配置使用

1.在database.php配置文件中 加入

$db['[color=red]second[/color]']['hostname'] = '[color=red]localhost[/color]';
	$db['second']['username'] = 'root';
	$db['second']['password'] = 'root';
	$db['second']['database'] = '[color=red]ci_0_2[/color]';
	$db['second']['dbdriver'] = 'mysql';
	$db['second']['dbprefix'] = '';
	$db['second']['pconnect'] = TRUE;
	$db['second']['db_debug'] = TRUE;
	$db['second']['cache_on'] = FALSE;
	$db['second']['cachedir'] = '';
	$db['second']['char_set'] = 'utf8';
	$db['second']['dbcollat'] = 'utf8_general_ci';
	$db['second']['swap_pre'] = '';
	$db['second']['autoinit'] = TRUE;
	$db['[color=red]second[/color]']['stricton'] = FALSE;

2. 在model中加入:

function __construct(){
		parent::__construct();
		$this->[color=red]second_db[/color] = $this->load->database('[color=red]second[/color]', true);
	}
		
	function verify_users($email, $password){
		$q = $this->[color=red]second_db[/color]
			->where('email', $email)
			->where('password', sha1($password))
			->limit(1)->get('users');
			
		if($q->num_rows > 0){
			return $q->row();
		}
		return false;
	}