How to configure multi-database access in CI, ci database access_PHP tutorial

CI configuration method for multi-database access, ci database access

The example in this article describes the CI configuration method for multi-database access. Share it with everyone for your reference, the details are as follows:

1. Modify the datebase.php file and change:

$db['XXX']['pconnect'] = TRUE;

was changed to:

$db['XXX']['pconnect'] = FALSE;

2. Copy the original database link definition, such as the current one

$db['bbs']['hostname'] = '你的数据库IP地址';
$db['bbs']['username'] = '链接用户名';
$db['bbs']['password'] = '数据库连接密码';
$db['bbs']['database'] = '数据库名';
$db['bbs']['dbdriver'] = 'mysql';
$db['bbs']['dbprefix'] = 'cg_';
$db['bbs']['pconnect'] = FALSE;
$db['bbs']['db_debug'] = TRUE;
$db['bbs']['cache_on'] = FALSE;
$db['bbs']['cachedir'] = '';
$db['bbs']['char_set'] = 'utf8';
$db['bbs']['dbcollat'] = 'utf8_general_ci';
$db['bbs']['swap_pre'] = '';
$db['bbs']['autoinit'] = TRUE;
$db['bbs']['stricton'] = FALSE;

No other modifications are required, and then load the constructor in your controller:

function __construct()
{
  parent::__construct();
  $this->XXX= $this->load->database('XXX', TRUE);
  //注意，这里的XXX代表上面的bbs，修改成bbs就行了
}

How to use:

$query = $this->bbs->query($sql);
//和以前一样，就是这里用到了$this->XXX-> XXX就是你定义的bbs
$rs = $query->result();

Readers who are interested in more CodeIgniter related content can check out the special topics of this site: "codeigniter introductory tutorial", "CI (CodeIgniter) framework advanced tutorial", "php date and time usage summary", "php object-oriented program" Design introductory tutorial", "php string (string) usage summary", "php mysql database operation introductory tutorial" and "php common database operation skills summary"

I hope this article will be helpful to everyone’s PHP program design based on the CodeIgniter framework.

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