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Detailed explanation of PHP framework CodeIgniter database configuration steps
Detailed explanation of PHP framework CodeIgniter database configuration steps
This time I will bring you php frameworkDetailed explanation of the CodeIgniter database configuration steps, what are the precautions for php framework CodeIgniter database configuration, the following is a practical case, let's take a look.
CodeIgniter, referred to as CI, is one of the most popular PHP MVC frameworks. I will write a series of practical experiences from actual project use. Different from other theoretical articles, I will attach practical processes and codes.
This article is about configuring multiple databases. The usage scenario is clustering, distributed, and database read-write separation. Among multiple master-slave backup servers, only one is a read-write database, and the others are read-only databases.
Tools/Environment:
php development environment
CodeIgniter
##Method/Steps :
Configure one more database source in config/database.php. The default is localhost or IP. Writedb is a readable and writable database. Since the written Master-slave mutual backup requires IP remote calling. My configuration is:$active_group = 'default'; $active_record = TRUE; $db['default']['hostname'] = 'localhost'; $db['default']['username'] = 'default_username'; $db['default']['password'] = 'default_password'; $db['default']['database'] = 'default_dbname'; $db['default']['dbdriver'] = 'mysql'; $db['default']['dbprefix'] = ''; $db['default']['pconnect'] = TRUE; $db['default']['db_debug'] = FALSE; $db['default']['cache_on'] = FALSE; $db['default']['cachedir'] = ''; $db['default']['char_set'] = 'utf8'; $db['default']['dbcollat'] = 'utf8_general_ci'; $db['default']['swap_pre'] = ''; $db['default']['autoinit'] = TRUE; $db['default']['stricton'] = FALSE; $db['writedb']['hostname'] = '202.187.194.160'; $db['writedb']['username'] = 'writedb_name'; $db['writedb']['password'] = 'writedb_password'; $db['writedb']['database'] = 'writedb_db'; $db['writedb']['dbdriver'] = 'mysql'; $db['writedb']['dbprefix'] = ''; $db['writedb']['pconnect'] = TRUE; $db['writedb']['db_debug'] = TRUE; $db['writedb']['cache_on'] = FALSE; $db['writedb']['cachedir'] = ''; $db['writedb']['char_set'] = 'utf8'; $db['writedb']['char_names'] = 'utf8'; $db['writedb']['dbcollat'] = 'utf8_general_ci'; $db['writedb']['swap_pre'] = ''; $db['writedb']['autoinit'] = TRUE; $db['writedb']['stricton'] = FALSE;
<?php
class Feedbackmodel extends CI_Model {
function construct() {
parent::construct ();
$this->db = $this->load->database ('default',true);
$this->writedb = $this->load->database ('writedb',true);
}
public function add($data)
{
$this->writedb->insert('feedback',$data);
if($this->writedb->affected_rows() == 1){
return true;
}
return false ;
}
}
?>The call of the controller is the same as the ordinary one. Just introduce the Model. I Example:
<?php
class Feedback extends CI_Controller {
function construct(){
parent::construct();
}
function index(){
$this->load->model('feedbackmodel');
$this->load->helper('url');
$data['name'] = "feedback";
$this->load->view('feedbackview',$data);
}
}
?>How to use Thinkphp5 uploadify to implement file upload
How to implement ADODB transaction processing in PHP
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