/**
*
* @param date $dateOfInvestment yyyy-mm-dd
* @param int $minimumMonths duration in months
* @return date yyyy-mm-dd
*/
public function earliestWithrawalDate($dateOfInvestment, $minimumMonths)
{
$splitDate = Defaults::dateExplode($dateOfInvestment);
$splitDate['mth'] = $splitDate['mth'] + $minimumMonths;
if ($splitDate['mth'] > 12) {
$splitDate['yr']++;
$splitDate['mth'] = $splitDate['mth'] - 12;
}
if ($splitDate['dt'] > ($maxDate = Defaults::maxdate($splitDate['mth'], $splitDate['yr']))) {
$splitDate['dt'] = $maxDate;
}
return $splitDate['yr'] . '-' . Defaults::twoDigits($splitDate['mth']) . '-' . Defaults::twoDigits($splitDate['dt']);
}
