/**
* 打开一个数据库连接
* @author 欧远宁
*/
private function open()
{
if (is_null($this->link)) {
try {
$this->link = new PDO($this->dsn, $this->user, $this->pwd);
$this->link->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
//设置为打开异常反馈
$this->link->exec("SET NAMES utf8");
//使用utf8编码
} catch (Exception $e) {
throw new err($e->getMessage(), 100);
}
}
}
