public function __construct()
{
self::$conn = mysql_connect($this->mysql_host, $this->mysql_username, $this->mysql_password);
if (!self::$conn) {
die('Can\'t connect to database');
}
mysql_select_db("{$this->mysql_database}");
}
/**
* 数据库连接
*/
public static function &getConn()
{
if (self::$conn == null) {
$conn = new PDO(sprintf(Config::DB_LINK, DIR_ROOT), "charset=UTF-8");
if (IS_DEBUG) {
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
} else {
$conn->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_SILENT);
}
self::$conn = $conn;
}
return self::$conn;
}