/**
* test if a value is a valid credit card expiration date
*
* @param string $value the value being tested
* @param boolean $empty if field can be empty
*/
function _is_cc_exp_date($value, $empty = false)
{
if (strlen($value) == 0) {
return $empty;
}
if (!preg_match('!^(\\d+)\\D+(\\d+)$!', $value, $_match)) {
return false;
}
$_month = $_match[1];
$_year = $_match[2];
if (strlen($_year) == 2) {
$_year = substr(date('Y', time()), 0, 2) . $_year;
}
if (!SmartyValidate::_is_int($_month)) {
return false;
}
if ($_month < 1 || $_month > 12) {
return false;
}
if (!SmartyValidate::_is_int($_year)) {
return false;
}
if (date('Y', time()) > $_year) {
return false;
}
if (date('Y', time()) == $_year && date('m', time()) > $_month) {
return false;
}
return true;
}
