$total_pay = $total_interest + $loan_amount;
echo "total:{$total_pay}, monthly:\n";
$month = 1;
foreach ($month_pays as $month_pay) {
echo "{$month}: {$month_pay['0']}+{$month_pay['1']} = " . ($month_pay[0] + $month_pay[1]) . "\n";
$month++;
}
} else {
/* 等额本息 */
$month_roll_rate = pow(1 + $month_rate, $months);
$month_pay = $loan_amount * $month_rate * $month_roll_rate / ($month_roll_rate - 1);
$total_pay = $month_pay * $months;
$month_pay = round($month_pay, 2);
$total_pay = round($total_pay, 2);
/* 每个月的多少利息多少本金显示 */
$returned_capital = 0;
for ($i = 1; $i <= $months; $i++) {
$month_interest = round(($loan_amount - $returned_capital) * $month_rate, 2);
$month_capital = $month_pay - $month_interest;
$returned_capital += $month_capital;
echo "{$i}: {$month_pay} = {$month_capital} + {$month_interest}\n";
}
echo "total:{$total_pay}, monthly:{$month_pay}*{$months}, rate:{$rate} month_rate:{$month_rate}, roll_rate:{$month_roll_rate}\n";
}
}
}
$h1 = new HousePrice(313, true);
#$h1->calculateDownPayment();
$loan = new Loan(1850000, 20);
$loan->calculationMonthPayment(false);
$loan->calculationMonthPayment(true);
