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  1. <?php 
  2.  
  3. error_reporting(-1);
  4.  
  5. function calculateLoan($loan, $percent, $monthlyPayment, $taxRate = 0)
  6. {
  7.     $month = 0;
  8.     $totalPayment = 0;
  9.  
  10.     while ($loan > 0) {
  11.         $totalPayment += $monthlyPayment;
  12.         $loan += $loan * $percent;
  13.  
  14.         if ($loan + $taxRate > $monthlyPayment) {
  15.             $loan -= ($monthlyPayment - $taxRate);
  16.         } else {
  17.             $left = $monthlyPayment - ($loan + $taxRate);
  18.             $loan = 0;
  19.         }
  20.  
  21.         $month++;
  22.     }
  23.  
  24.     return array(
  25.         'total' => round($totalPayment - $left, 2),
  26.         'month' => $month,
  27.         'left'  => round($left, 2),
  28.     );
  29. }
  30.  
  31. $loan           = 40000;
  32. $monthlyPayment = 2000;
  33. $taxRate        = $monthlyPayment * 0.03;
  34. $percent        = 0.03;
  35.  
  36. $data = calculateLoan($loan, $percent, $monthlyPayment, $taxRate);
  37.  
  38. echo "Выплачено: " . $data['total'] . " рублей.\n" . "За " . $data['month'] . " месяцев.\n" . "В конце месяца на булочки осталось: " . $data['left'] . " рублей.\n";
Success #stdin #stdout 0.02s 52432KB
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Выплачено: 65242.4 рублей.
За 33 месяцев.
В конце месяца на булочки осталось: 757.6 рублей.
https://ideone.com/ns79Xy
language:
PHP (php 7.3.5)
created:
8 years ago
visibility:
public

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