/**
* Returns the formatted birthday of this user.
*
* @param integer $year
* @return string
*/
public function getBirthday($year = null)
{
// split date
$birthdayYear = $month = $day = 0;
$value = explode('-', $this->birthday);
if (isset($value[0])) {
$birthdayYear = intval($value[0]);
}
if (isset($value[1])) {
$month = intval($value[1]);
}
if (isset($value[2])) {
$day = intval($value[2]);
}
if (!$month || !$day) {
return '';
}
$d = new \DateTime();
$d->setTimezone(WCF::getUser()->getTimeZone());
$d->setDate($birthdayYear, $month, $day);
$dateFormat = $this->birthdayShowYear && $birthdayYear ? WCF::getLanguage()->get(DateUtil::DATE_FORMAT) : str_replace('Y', '', WCF::getLanguage()->get(DateUtil::DATE_FORMAT));
$birthday = DateUtil::localizeDate($d->format($dateFormat), $dateFormat, WCF::getLanguage());
if ($this->birthdayShowYear) {
$age = $this->getAge($year);
if ($age > 0) {
$birthday .= ' (' . $age . ')';
}
}
return $birthday;
}