public static function base64ToFile($base64, $save)
{
$base64 = substr($base64, strpos($base64, ',') + 1);
$base64 = base64_decode($base64);
if (!$base64) {
throw new \Exception("Invalid base64 image string");
}
$file = new File();
$file->setFileName($save);
$file->setContents($base64);
$file->write();
ImageValidate::mustBeImage($file);
return $file;
}