/**
* Check a given year for leap year.
*
* @param integer|array|\Zend\Date\Date $year Year to check
* @return boolean
*/
public static function checkLeapYear($year)
{
if ($year instanceof Date) {
$year = (int) $year->toString(self::YEAR, 'iso');
}
if (is_array($year)) {
if (isset($year['year']) === true) {
$year = $year['year'];
} else {
throw new Exception\InvalidArgumentException("no year given in array");
}
}
if (!is_numeric($year)) {
throw new Exception\InvalidArgumentException("year ({$year}) has to be integer for checkLeapYear()");
}
return (bool) parent::isYearLeapYear($year);
}
public function dayOfWeekHelper($y, $m, $d)
{
return DateObject::dayOfWeek($y, $m, $d);
}
