递归在PHP中的应用举例

     %d",$pNum);printf ("$%s", number_format ($newBalance,2));printf ("$%s", number_format ($periodicPayment,2));printf ("$%s", number_format ($paymentPrincipal,2));printf ("$%s", number_format ($paymentInterest,2));#if balance not yet zero, recursively call amortizationTable()if ($newBalance>0){   $pNum++;   amortizationTable($pNum, $periodicPayment,                      $newBalance, $monthlyInterest);	}else{	return 0;	}}$balance = 10000.00;                                 // 贷款余额$interestRate = 0.0575;                              //贷款利率$monthlyInterest = $interestRate/12;                 //每月利率$termLength = 5;                                     //贷款期限，单位为年$paymentsPerYear = 12;                               //每年支付次数$paymentNumber = 1;                                  //付款迭代$totalPayments = $termLength*$paymentsPerYear;       //确定付款次数$intCalc = 1 + $interestRate / $paymentsPerYear;     //确定分期付款的利息部分$periodicPayment = $balance * pow($intCalc, $totalPayments)*($intCalc -1)/(pow($intCalc,$totalPayments) -1);//每月还款额限制到小数点后两位$periodcPayment = round($periodicPayment,2);//创建表echo "
     
      ";echo "
";	  //创建递归函数amortizationTable ($paymentNumber, $periodcPayment, $balance,$monthlyInterest);//关闭表echo "
      
       
              
Payment Number
        
Balance
	          
payment
        
Principal
        
Interest
	         
      
     
";?>