src/Qiniu/QiniuAdapter.php
public function getMimetype($path)
    {
        list(, , $mimeType,) = array_values($this->getMetadata($path));
        return !empty($mimeType) ? ['mimetype' => $mimeType ] : false;
    }
public function getMimetype($path)
    {
        list(, , $mimeType,) = array_values($this->getMetadata($path));
        return !empty($mimeType) ? ['mimetype' => $mimeType ] : false;
    }
获得文件Mime类型

@param string $path
@return mixed string|null
@author yangyifan <yangyifanphp@gmail.com>