public function getAttributes()
{
// initialize the array with the attributes
$attributes = array();
// prepare the pattern to filter the attributes
$pattern = sprintf('%s-*', $this->getSerial());
// prepare the array with the attributes
foreach ($this as $key => $value) {
if (fnmatch($pattern, $key)) {
$attributes[$key] = $value;
}
}
// return the attributes
return $attributes;
}