Showing posts with label area of the circle using php. Show all posts
Showing posts with label area of the circle using php. Show all posts

Monday, July 15, 2019

Area of the Circle Using PHP

Here is a simple program to show how to solve the area of the circle using PHP.

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Sample Program Output


Program Listing

area.php

<!DOCTYPE html>
<html lang="en">
<head>
<style>
body {
font-family: arial;
}
</style>
<?php
$radius=$_POST['radius'];
?>
<meta charset="UTF-8">
<title>Area of the Circle Using PHP</title>
</head>
<body>

<h2>Area of the Circle Using PHP</h2>

<h4>Created By Mr. Jake R. Pomperada</h4>
<form action="" method="post">
<b>Give Radius</b><br/><br>
<input type="text" name="radius" value="<?php echo $radius; ?>" ><br/><br>
<input type="submit" name="submit" value="Submit">
</form>
<br>
<?php
if(isset($_POST['submit'])){
//area = pie * radius * radius
define('PI','3.14');
$radius=$_POST['radius'];
$area= PI * $radius * $radius;
echo "Area of the Circle is ".round($area,2);
}
?>
</body>
</html>