<?php
  function eval_totalpayment($credit, $perc, $commission, $payment, $fee=0) {
   $credit+=$fee;
    for ($i = 1, $totalpayment = 0, $balance = $credit * (1 + $perc) + $commission; $balance > $payment; ++$i) {
     $balance -= $payment;
     $balance += $balance * $perc + $commission;
     $totalpayment += $payment;
  }
  $totalpayment += $balance;
  echo "Budet oplacheno $totalpayment za $i mecyacev\n";
  return $totalpayment;
  }
  $test = eval_totalpayment(40000, 0.03, 1000, 5000);

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