Practical Name:-Write a PHP script for the following: Design a form to accept two numbers from the user. Give options to choose the arithmetic operation (use radio buttons). Display the result on the next form. (Use the concept of function and default parameters. Use ‘include’ construct or require stmt).
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<html>
<body><center>
<h1>
Options to choose the arithmetic operation
</h1>
<h3>Option-1 = Addition</h3>
<h3>Option-2 = Subtraction</h3>
<h3>Option-3 = Multiplication</h3>
<h3>Option-4 = Division</h3>
<form method="post">
<table border="0">
<tr>
<td> <input type="text" name="num1" value="" placeholder="Enter value 1"/>
</td> </tr> <tr>
<td> <input type="text" name="num2" value="" placeholder="Enter value 2"/>
</td>
</tr>
<tr>
<td> <input type="text" name="option" value="" placeholder="Enter option 1-4 only"/>
</td>
</tr>
<tr>
<td> <input type="submit" name="submit" value="Submit"/>
</td> </tr> </table> </form>
</center>
<?php if(isset($_POST['submit'])) {
$a = $_POST['num1'];
$b = $_POST['num2'];
$ch = $_POST['option']; switch($ch) {
case 1:
$r = $a + $b;
echo " Addition of two numbers = " . $r ;
break;
case 2:
$r = $a - $b;
echo " Subtraction of two numbers= " . $r ; break;
case 3:
$r = $a * $b;
echo " Multiplication of two numbers = " . $r ; break;
case 4:
$r = $a / $b;
echo " Divison of two numbers = " . $r ; break;
default:
echo ("invalid option\n");
}
return 0;
}
?>
</body>
</html>