Hesap Makinesi

<form id="form1" name="form1" method="post" action="">

  <p>Please enter the number

</p>

  <p>

    <input type="text" name="number1"/>

  </p>

  <p>

    <input type="text" name="number2"/>

  </p><strong>Calculate</strong>

  <p>

    <input type="radio" name="radio" id="radio" value="Plus" />

    Plus 

    <input type="radio" name="radio" id="radio2" value="Mines" />

    Mines 

    <input type="radio" name="radio" id="radio3" value="Mult." />

  Mult. 

  <input type="radio" name="radio" id="radio4" value="Divide" />

  Divide</p>

  <p>

    <input type="submit" name="action" value="Submit" />

  </p>

  <p>&nbsp;</p>

</form>

<?php

if (isset($_POST['action']) and $_POST['action'] == 'Submit')

          {

 $number1=$_POST["number1"];

 $number2=$_POST["number2"];

 $radio=$_POST["radio"];

 

 

 if ($radio=='Mines'){

 $cevap = $number1 - $number2;

 echo $cevap;

 

 }

 

if ($radio=='Plus'){

 $cevap = $number1 + $number2;

 echo $cevap;

 

 }

 if ($radio=='Mult.'){

 $cevap = $number1 * $number2;

   echo $cevap;

 

 }

 if ($radio=='Divide'){

 $cevap = $number1 / $number2;

   echo $cevap;

 

 }

 

 

          } 

?>