getValueDotNotationSyntax example

    public function getFile(string $name)
    {
        $this->populateFiles();

        if ($this->hasFile($name)) {
            if (strpos($name, '.') !== false) {
                $name         = explode('.', $name);
                $uploadedFile = $this->getValueDotNotationSyntax($name, $this->files);

                return $uploadedFile instanceof UploadedFile ? $uploadedFile : null;
            }

            if (array_key_exists($name, $this->files)) {
                $uploadedFile = $this->files[$name];

                return $uploadedFile instanceof UploadedFile ? $uploadedFile : null;
            }
        }