/**
* Convert a date passed as 'YYYY-MM-DD', SS_Datetime or year, month, day
* to checkfront 'YYYYMMDD' format.
*
* @param string|null $dateOrYear
* @param null $month
* @param null $day
*
* @return bool|mixed|string
* @throws Exception
*/
public static function checkfront_date($dateOrYear, $month = null, $day = null)
{
$checkfrontFormat = CheckfrontModule::checkfront_date_format();
if (empty($dateOrYear)) {
return date($checkfrontFormat);
} elseif ($dateOrYear instanceof SS_Datetime) {
// build from SS_Datetime
$result = $dateOrYear->Year() . $dateOrYear->Month() . $dateOrYear->Day();
} elseif (is_int($dateOrYear)) {
// year is an integer year
if (func_num_args() === 1 && $dateOrYear > mktime(0, 0, 0, 1, 1, 1970)) {
// $dateOrYear is probably a unix timestamp
$result = date($checkfrontFormat, $dateOrYear);
} elseif (func_num_args() === 3) {
// $dateOrYear is year, and month and day supplied
$result = date($checkfrontFormat, mktime(0, 0, 0, $month, $day, $dateOrYear));
} else {
throw new CheckfrontException("Need either 1 or 3 arguments when dataOrYear is an integer", CheckfrontException::TypeError);
}
} elseif (3 === explode($dateOrYear, '-')) {
// probably formatted as YYYY-MM-DD
$result = str_replace(array('-', '_'), '', $dateOrYear);
if (!is_numeric($result)) {
throw new CheckfrontException("Invalid date passed: '{$dateOrYear}'", CheckfrontException::TypeError);
}
} else {
// this may be something that strtotime can use e.g. 'today' or '+2 month'?
$unixTime = strtotime($dateOrYear);
if ($unixTime === false) {
throw new CheckfrontException("Invalid date passed: '{$dateOrYear}'", CheckfrontException::TypeError);
}
$result = date($checkfrontFormat, $unixTime);
}
return $result;
}
