private function validatePhoneNumber($number)
{
//Format the phone number according to EPP formatting rules.
if (!strlen($number)) {
return null;
}
if ($number[0] != '+') {
throw new eppException('Phone number ' . $number . ' is not valid for EPP. Valid format is +cc.nnnnnnnnnnn');
}
if (strpos($number, '.') === false) {
throw new eppException('Phone number ' . $number . ' is not valid for EPP. Valid format is +cc.nnnnnnnnnnn');
}
return $number;
}