/**
* 获取DSN链接
*
* @param array $config
* @return string
*/
protected function getDblibDsn(array $config)
{
$arguments = ['host' => $this->buildHostString($config, ':'), 'dbname' => $config['database']];
$arguments = array_merge($arguments, Arr::only($config, ['appname', 'charset']));
return $this->buildConnectString('dblib', $arguments);
}
/**
* Get a subset of the items from the given array.
*
* @param array $array
* @param array|string $keys
* @return array
*/
function array_only($array, $keys)
{
return Arr::only($array, $keys);
}
/**
* Get the items with the specified keys.
*
* @param mixed $keys
* @return static
*/
public function only($keys)
{
$keys = is_array($keys) ? $keys : func_get_args();
return new static(Arr::only($this->items, $keys));
}
