Question

我已经创建了一个php页面，它将创建一个表单并向自己发布信息。然后我用它创建一个对象，我通过一个方法运行，我想在这里返回/回显一个字符串＆＃39; s我的代码。

<?php
include_once 'checkLogin.php';
$action='';//this will store what the user wants to do
if(isset($_GET['savings'])){$action='save';}
if(isset($_GET['depreciation'])){$action='deprec';}
$time=$_POST['time'];//get the values from the form below
$interest=$_POST['interest'];
$InitialSum=$_POST['InitialSum'];
  //depreciation and savings can be done on the same page
class Information{
  function __construct($time,$interest,$InitialSum){
    $this->time=$time;
    $this->interest=$interest;
    $this->InitialSum=$InitialSum;
  }
  function CalcSave(){
    $totalAmt=$InitialSum*($interest*100);//the total amount, this will count as one year
    for ($x=0;$x<$time;$x++){//therefore this should only do 1 less than the total
      $totalAmt=($interest*100)*$totalAmmt;//after another year
    }
  return'After '.$time.' years your savings will be worth '.$totalAmt.'.';
    }
  function CalcDeprec(){
    $totalAmt=$InitialSum*$interest;
    for ($x=0;$x<$time;$x++){//therefore this should only do 1 less than the total
      $totalAmt=$interest*$totalAmmt;//after another year
    }
  return 'After'.$time.'years your asset will be worth '.$totalAmt.'.';
    }
}
 ?>
<!DOCTYPE HTML>
<html>
<body>
  <form name="form1" method="post" action="<?php echo $_SERVER['PHP_SELF']; ?>" >
Initial Amount: <input type="number" name="InitialSum"><br>
Interest: <input type="number" name="interest"><br>
How long: <input type='number' name='time'><br>
<input type="submit">
</form>
<p>
  <?php
  $user=new Information($time,$interest,$InitialSum);//this creates the user object
  if ($action=='save'){
    $user->CalcSave();//this will run the method since user is the object
    echo $result;
  }
  if ($action=='deprec'){
    $user->CalcDeprec();
    echo $result;
  }
  ?>
</p>
</body>
</html>

如果它转到另一个页面，我不介意，但理想情况下我希望它能回显到页面上。我没有从中获得任何错误，我对PHP中的OOP不是很有经验。修改我已尝试$result = $user->CalcSave(); echo $result; 和

echo $user->CalcSave();

但它重新加载没有

的同一页面

?action=depreciation

在页面的末尾，没有任何回应。

Answer 1

试试这个：

$result = $user->CalcSave();
echo $result;

和

$result = $user->CalcDeprec();
echo $result;

试图回应方法php

1 个答案: