";
$credit -= $payment;
$log .= "Sum, after anon paid: $credit
";
$period++;
$log .= "Current month $period
";
} while (($credit * $rate + $commission) > $payment);
$period++;
$log .= "Current month sum: $credit
";
$sum = $period * $payment + $credit;
$credit = 0;
$log .= "Sum, after anon paid: $credit
Current month $period
";
echo "Anon paid for $period month.
Whole sum: $sum.
Credit: $credit";
echo '
';
echo $log;