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  1. <?php
  2. error_reporting(E_ALL | E_STRICT);
  3.  
  4. class CreditCalculator
  5. {
  6.  
  7.     private $creditSum;
  8.     private $payout;
  9.  
  10.  function __construct($creditSum, $payout)
  11. {
  12.      $this->creditSum = $creditSum;
  13.      $this->payout = $payout;
  14.  }
  15.  
  16. public function calculateCredit($creditRate, $comission, $openingPayment)
  17. {
  18.     $creditSum = $this->creditSum + $openingPayment;
  19.     $totalPaid = $openingPayment;
  20.  
  21.     while($creditSum > 0)
  22.    {
  23.         $creditMonthlyPercent = ($creditSum / 100) * $creditRate;  
  24.         $creditSum = $creditSum + $creditMonthlyPercent + $comission; 
  25.  
  26.         if ($this->payout <= $creditSum) 
  27.         {
  28.             $totalPaid += $this->payout;
  29.             $creditSum -= $this->payout;   
  30.         }
  31.         else // $this->payout > $creditSum
  32.         {
  33.             $totalPaid += $creditSum;
  34.             $creditSum = 0;
  35.         }
  36.  
  37.  
  38.     } // endwhile
  39.  
  40.     return round($totalPaid,2);
  41. } // calculateCredit
  42.  
  43. }  // class CreditCalculator
  44.  
  45. $creditSum = 39999;
  46. $payout = 5000;
  47. $calculator = new CreditCalculator($creditSum, $payout);
  48.  
  49. $homoCreditRate = 4; // %
  50. $homoComission = 500; // roubles
  51. $homoOPayment = 0; // roubles 
  52. $homoCreditTotal = $calculator->calculateCredit($homoCreditRate, $homoComission, $homoOPayment);
  53.  
  54. $softbankCreditRate = 3; // %
  55. $softbankComission = 1000; // roubles
  56. $softbankOPayment = 0; // roubles 
  57. $softbankTotal = $calculator->calculateCredit($softbankCreditRate, $softbankComission, $softbankOPayment);
  58.  
  59. $strawberryCreditRate = 2; // %
  60. $strawberryComission = 0; // roubles
  61. $strawberryOPayment = 7777; // roubles 
  62. $strawberryTotal = $calculator->calculateCredit($strawberryCreditRate, $strawberryComission, $strawberryOPayment);
  63.  
  64. echo '<pre>';
  65. echo "homoCredit: {$homoCreditTotal} rub. \n";
  66. echo "softbankCredit: {$softbankTotal} rub. \n";
  67. echo "strawberryCredit: {$strawberryTotal} rub. \n";
  68.  
Success #stdin #stdout 0.02s 24448KB
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stdin 
Standard input is empty
stdout 
<pre>homoCredit: 56423.56 rub. 
softbankCredit: 61268.72 rub. 
strawberryCredit: 61336.87 rub.
https://ideone.com/oLTBYc
language:
PHP (php 7.3.5)
created:
9 years ago
visibility:
public

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