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67 lines
1.9 KiB
67 lines
1.9 KiB
<?php
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/**
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* Класс базы данных.
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* Возвращает идентификатор соединения
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*
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* @copyright
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* @link
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* @package Majestic
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* @subpackage DB
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* @since
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* @version SVN: $Id$
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* @filesource $URL$
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*/
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class DBConnector
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{
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private $handlers = array();
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static private $instance = null;
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static public $queries = array();
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/**
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* Запрещаем new и клонирование
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*/
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private function __construct(){}
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private function __clone(){}
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/**
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* Единственный способ инициализации. Singletone как-никак.
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* @return DBConnector
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*/
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static public function getInstance()
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{
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if (self::$instance == null) {
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self::$instance = new DBConnector();
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}
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return self::$instance;
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}
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/**
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* Получение соединения.
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* Если соединение с такими параметрами уже есть - новое не создается.
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*
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* @param array $db_settings - массив настроек
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* @return resource - идентификатор соединения
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*/
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public function getConnect($db_settings)
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{
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$handler_name = $this->getConnectionName($db_settings);
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if (isset($this->handlers[$handler_name])) {
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return $this->handlers[$handler_name];
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}
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if (!$handler = mysqli_connect($db_settings['host'], $db_settings['user'], $db_settings['password'], $db_settings['database'])) {
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throw new MJException('Can\'t connect to DB '.mysqli_connect_error(), 2);
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}
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mysqli_query($handler, "SET NAMES 'utf8'"); //cheat!!!
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return $this->handlers[$handler_name] = $handler;
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}
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protected function getConnectionName($db_settings)
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{
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return $db_settings['host'] . '-' . $db_settings['database'];
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}
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}
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?>
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