/**
* 初始化 PDO对象
*
* @access public
* @param array $configs PDO#__construct 使用数组来指定第一~第三个参数（默认值:生产环境的数据库）
* @param array $driver_options PDO#__construct 第四个参数（默认：「SET CHARACTER SET `utf8`」）
* @return PDO 对象
*/
public static function initializeInstance($configs = array(), $driver_options = array())
{
if (empty($configs)) {
$configs = IniFileManager::getByFileName(self::FILE_NAME);
}
if (empty($configs)) {
throw new Exception('Could not get configuration of "' . self::FILE_NAME . '".');
}
if (empty($driver_options)) {
$driver_options = Database::$DEFAULT_DRIVER_OPTIONS;
}
$pdo = new ExtPDO($configs[self::CONFIG_KEY_DSN], $configs[self::CONFIG_KEY_USER], $configs[self::CONFIG_KEY_PASSWORD], $driver_options);
// 设置错误报告:抛出异常
$pdo->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);
//$pdo->setAttribute( PDO::ATTR_EMULATE_PREPARES, false );
return $pdo;
}
