org\bovigo\vfs\vfsStreamWrapper::stream_write PHP Метод

    public function stream_write($data)
    {
        if (self::READONLY === $this->mode) {
            return 0;
        }
        if ($this->content->isWritable(vfsStream::getCurrentUser(), vfsStream::getCurrentGroup()) === false) {
            return 0;
        }
        if (self::$quota->isLimited()) {
            $data = substr($data, 0, self::$quota->spaceLeft(self::$root->sizeSummarized()));
        }
        return $this->content->write($data);
    }