public function Subcription($frequency, $start, $end, $due)
{
//helper function
function datediff($interval, $datefrom, $dateto, $using_timestamps = false)
{
/*
$interval can be:
yyyy - Number of full years
q - Number of full quarters
m - Number of full months
y - Difference between day numbers
(eg 1st Jan 2004 is "1", the first day. 2nd Feb 2003 is "33". The datediff is "-32".)
d - Number of full days
w - Number of full weekdays
ww - Number of full weeks
h - Number of full hours
n - Number of full minutes
s - Number of full seconds (default)
*/
if (!$using_timestamps) {
$datefrom = strtotime($datefrom, 0);
$dateto = strtotime($dateto, 0);
}
$difference = $dateto - $datefrom;
// Difference in seconds
switch ($interval) {
case 'yyyy':
// Number of full years
$years_difference = floor($difference / 31536000);
if (mktime(date("H", $datefrom), date("i", $datefrom), date("s", $datefrom), date("n", $datefrom), date("j", $datefrom), date("Y", $datefrom) + $years_difference) > $dateto) {
$years_difference--;
}
if (mktime(date("H", $dateto), date("i", $dateto), date("s", $dateto), date("n", $dateto), date("j", $dateto), date("Y", $dateto) - ($years_difference + 1)) > $datefrom) {
$years_difference++;
}
$datediff = $years_difference;
break;
case "q":
// Number of full quarters
$quarters_difference = floor($difference / 8035200);
while (mktime(date("H", $datefrom), date("i", $datefrom), date("s", $datefrom), date("n", $datefrom) + $quarters_difference * 3, date("j", $dateto), date("Y", $datefrom)) < $dateto) {
$months_difference++;
}
$quarters_difference--;
$datediff = $quarters_difference;
break;
case "m":
// Number of full months
$months_difference = floor($difference / 2678400);
while (mktime(date("H", $datefrom), date("i", $datefrom), date("s", $datefrom), date("n", $datefrom) + $months_difference, date("j", $dateto), date("Y", $datefrom)) < $dateto) {
$months_difference++;
}
$months_difference--;
$datediff = $months_difference;
break;
case 'y':
// Difference between day numbers
$datediff = date("z", $dateto) - date("z", $datefrom);
break;
case "d":
// Number of full days
$datediff = floor($difference / 86400);
break;
case "w":
// Number of full weekdays
$days_difference = floor($difference / 86400);
$weeks_difference = floor($days_difference / 7);
// Complete weeks
$first_day = date("w", $datefrom);
$days_remainder = floor($days_difference % 7);
$odd_days = $first_day + $days_remainder;
// Do we have a Saturday or Sunday in the remainder?
if ($odd_days > 7) {
// Sunday
$days_remainder--;
}
if ($odd_days > 6) {
// Saturday
$days_remainder--;
}
$datediff = $weeks_difference * 5 + $days_remainder;
break;
case "ww":
// Number of full weeks
$datediff = floor($difference / 604800);
break;
case "h":
// Number of full hours
$datediff = floor($difference / 3600);
break;
case "n":
// Number of full minutes
$datediff = floor($difference / 60);
break;
default:
// Number of full seconds (default)
$datediff = $difference;
break;
}
return $datediff;
}
$fmt = new NumberFormatter('en_US', NumberFormatter::DECIMAL);
switch ($frequency) {
case 1:
//Weekly
$frequency = Frequency::find($frequency)->name;
$recurrences = datediff("ww", $start, $end, false);
$schedule = array();
for ($x = 0; $x <= $recurrences; $x++) {
$schedule[] = Carbon::createFromTimestamp(strtotime($start))->addWeeks($x)->format('m/d/y ');
}
$recurrences = $x;
$amount = $fmt->parse($due) / $x;
break;
case 2:
//Every two weeks
$frequency = Frequency::find($frequency)->name;
$recurrences = round(datediff("ww", $start, $end, false)) / 2;
$schedule = array();
for ($x = 0; $x <= $recurrences; $x++) {
$schedule[] = Carbon::createFromTimestamp(strtotime($start))->addWeeks($x * 2)->format('m/d/y ');
}
$recurrences = $x;
$amount = $fmt->parse($due) / $x;
break;
case 3:
//Monthly
$frequency = Frequency::find($frequency)->name;
$recurrences = datediff("m", $start, $end, false);
$schedule = array();
for ($x = 0; $x <= $recurrences; $x++) {
$schedule[] = Carbon::createFromTimestamp(strtotime($start))->addMonths($x)->format('m/d/y ');
}
$recurrences = $x;
$amount = $fmt->parse($due) / $x;
break;
}
setlocale(LC_MONETARY, "en_US");
$result = array("frequency" => $frequency, "start" => $start, "end" => $end, "subtotal" => money_format('%.2n', round($amount, 2)), "fee" => money_format('%.2n', round($amount / getenv("SV_FEE") - $amount, 2)), "total" => money_format('%.2n', round($amount / getenv("SV_FEE"), 2)), "recurrences" => $recurrences, "dates" => $schedule);
$object = json_decode(json_encode($result), FALSE);
return $object;
}
