freyo / flysystem-qcloud-cos-v3

    public static function upload($bucketName, $srcPath, $dstPath,

                $bizAttr = null, $sliceSize = null, $insertOnly = null)

    {

        if (!file_exists($srcPath)) {

            return [

                    'code'    => self::COSAPI_PARAMS_ERROR,

                    'message' => 'file '.$srcPath.' not exists',

                    'data'    => [], ];

        }

        $dstPath = '/'.ltrim($dstPath, '/');

        $srcPath = realpath($srcPath);

        $dstPath = self::cosUrlEncode($dstPath);

        if (filesize($srcPath) >= self::MAX_UNSLICE_FILE_SIZE) {

            return [

                    'code'    => self::COSAPI_PARAMS_ERROR,

                    'message' => 'file '.$srcPath.' larger then 20M, please use upload_slice interface',

                    'data'    => [], ];

        }

        $expired = self::time() + self::EXPIRED_SECONDS;

        $url = self::generateResUrl($bucketName, $dstPath);

                    $srcPath, false, null,

                    $offset, $sliceSize);

            if ($filecontent === false) {

                return [

                    'code'    => self::COSAPI_PARAMS_ERROR,

                    'message' => 'read file '.$srcPath.' error',

                    'data'    => [],

                ];

            }

            $boundary = '---------------------------'.substr(md5(mt_rand()), 0, 10);

            $data = self::generateSliceBody(