if (modulo($_POST['tyear'], 4) == 0 and modulo($_POST['tyear'], 100) != 0 or modulo($_POST['tyear'], 400) == 0) {
$leap = true;
} else {
$leap = false;
}
if ($leap == true and $_POST['tmonth'] == '02' and ($_POST['tday'] == '30' or $_POST['tday'] == '31')) {
$_POST['tday'] = '29';
}
if ($leap == false and $_POST['tmonth'] == '02' and ($_POST['tday'] == '29' or $_POST['tday'] == '30' or $_POST['tday'] == '31')) {
$_POST['tday'] = '28';
}
if (($_POST['tmonth'] == '04' or $_POST['tmonth'] == '06' or $_POST['tmonth'] == '09' or $_POST['tmonth'] == '11') and $_POST['tday'] == '31') {
$_POST['tday'] = '30';
}
$end_date = new dateTime($_POST['tyear'] . $_POST['tmonth'] . $_POST['tday'] . $_POST['ttime'], $target_timezone);
$end_date->setTimezone($UK_time);
if ($_POST['timezone'] < 0) {
$start_date->modify("+" . abs($_POST['timezone']) . " hour");
$end_date->modify("+" . abs($_POST['timezone']) . " hour");
} elseif ($_POST['timezone'] > 0) {
$start_date->modify("-" . $_POST['timezone'] . " hour");
$end_date->modify("-" . $_POST['timezone'] . " hour");
}
$tmp_start_date = $start_date->format("YmdHis");
$tmp_end_date = $end_date->format("YmdHis");
$timezone = $_POST['timezone'];
}
// Process the posted modules
$modules = array();
$first = true;
for ($i = 0; $i < $_POST['module_no']; $i++) {
if ($_POST['tyear'] == '' and $_POST['tmonth'] == '' and $_POST['tday'] == '' and $_POST['thour'] == '' and $_POST['tminute'] == '') {
$null_end_date = true;
$tmp_end_date = NULL;
} else {
$leap = is_leap($_POST['tyear']);
if ($leap == true and $_POST['tmonth'] == '02' and ($_POST['tday'] == '30' or $_POST['tday'] == '31')) {
$_POST['tday'] = '29';
}
if ($leap == false and $_POST['tmonth'] == '02' and ($_POST['tday'] == '29' or $_POST['tday'] == '30' or $_POST['tday'] == '31')) {
$_POST['tday'] = '28';
}
if (($_POST['tmonth'] == '04' or $_POST['tmonth'] == '06' or $_POST['tmonth'] == '09' or $_POST['tmonth'] == '11') and $_POST['tday'] == '31') {
$_POST['tday'] = '30';
}
$end_date = new dateTime($_POST['tyear'] . $_POST['tmonth'] . $_POST['tday'] . $_POST['thour'] . $_POST['tminute'], $target_timezone);
$end_date->setTimezone($local_time);
if ($_POST['timezone'] < 0) {
$end_date->modify("+" . abs($_POST['timezone']) . " hour");
} elseif ($_POST['timezone'] > 0) {
$end_date->modify("-" . $_POST['timezone'] . " hour");
}
$properties->set_end_date($end_date->format('U'));
$properties->set_raw_end_date($end_date->format('YmdHis'));
}
}
$properties->set_timezone($_POST['timezone']);
if (isset($_POST['calendar_year'])) {
$calendar_year = $_POST['calendar_year'] == '' ? NULL : $_POST['calendar_year'];
$properties->set_calendar_year($calendar_year);
}
if (isset($_POST['exam_duration_hours']) or isset($_POST['exam_duration_mins'])) {
