Assignment 1: Practice Set Q.1 Solution

Write a PHP program to create class circle having radius data member and two member functions find_circumfernce () and find_area() . Display area and Circumference depending on user’s preference.

Index.html


          
      <!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <meta name="viewport" content="width=device-width, initial-scale=1.0">
  <title>Class Circle</title>
</head>
<body>
  <form action="backend.php" method="post">
    <input type="text" name="radius" placeholder="Enter Radius">
<br><br>
  <select name="option">
    <option value="1">Area of Circle</option>
    <option value="2">Circumference of Circle</option>
  </select>
<br><br>

<input type="submit">
  </form>
</body>
</html>

Backend.php


          
      <?php
class circle
{
  var $radius;

  function __construct($radius)
  {
    $this->radius = $radius;
  }

  function area_c()
  {
    $r = $this->radius;
    $result = 3.14 *  ($r * $r);

    echo "Area of circle= $result";
  }
  function circumference_c()
  {
    $r = $this->radius;
    $result = 2 * (3.14 *  $r);

    echo "Circumference of circle= $result";
  }
}
$r = $_POST['radius'];

$opt = $_POST['option'];

$cir = new circle($r);


switch ($opt) {
  case 1:
    $cir->area_c();
    break;

  case 2:
    $cir->circumference_c();
    break;
}

?>

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1.Write a PHP program to create class circle having radius data member and two member functions find_circumfernce () and find_area() . Display area and Circumference depending on user’s preference.

Assignment 1: Practice Set Q.1 Solution

Write a PHP program to create class circle having radius data member and two member functions find_circumfernce () and find_area() . Display area and Circumference depending on user’s preference.

Index.html

Backend.php

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