rate

rate.php

<?php
/**
 * Created by PhpStorm.
 * User: wangjunfengze
 * Date: 2017/8/12
 * Time: 下午2:54
 */

$money = 6988;

$rate  = 0.07;
$subAmount = 605;

$totalInterest = 0;

for ($i = 1; $i <= 12; $i++) {
    echo "第 $i 期";
    var_dump($money);
    $interest = round(($money * $rate / 12), 2);
    var_dump($interest);
    $totalInterest += $interest;
    var_dump($totalInterest);
    echo "\n";

    $money = $money - $subAmount;
}



//$money = 6988;
//$money = 7260;
//
//$subAmount = 605;
//
//$totalInterest = 0;
//
//for ($i = 1; $i <= 12; $i++) {
//    $ii = $i;
//    if ($i == 12) {
//        $ii = 11;
//    }
//    $rate = 0.06 + 0.005 * ($ii - 1);
//    echo "第 $i 期，利率 $rate\n";
//    echo "剩余本金 $money";
//    $interest = round(($money * $rate / 12), 2);
//    echo "\n本月利息 $interest";
//    $totalInterest += $interest;
//    echo "  总利息 $totalInterest";
//    echo "\n\n";
//
//    $money = $money - $subAmount;
//}