protected function initLink()
{
// $options = array(
// 'host' =>'127.0.0.1',
// 'port' => '3306',
// 'user' => 'root',
// 'pass' =>'root',
// 'charset' => 'utf8',
// 'dbname' => 'demo_shop'
// );
$this->db = MySQLDB::getInstance($GLOBALS['config']['database']);
}
<?php
class MySQLDB
{
private static $instance;
private function __construct($p1)
{
}
public static function getInstance($p1)
{
if (!self::$instance instanceof self) {
self::$instance = new self($p1);
}
return self::$instance;
}
private function __clone()
{
}
}
$db1 = MySQLDB::getInstance($a);
$db2 = MySQLDB::getInstance($a);
var_dump($db1, $db2);
public function sess_open()
{
$this->db = MySQLDB::getInstance($GLOBALS['config']['database']);
}