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PHP question. I have the HTML for this but im stuck on the php part. Thanks for

ID: 3760648 • Letter: P

Question

PHP question. I have the HTML for this but im stuck on the php part. Thanks for your time

create an application that takes the radius submitted from this form and displays:

Circumference of a Circle

Area of a Circle

here is the html

<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Question 1</title>
<style type="text/css">
<!--
#wrapper {
   padding: 25px;
   width: 700px;
   margin-top: 10px;
   margin-right: auto;
   margin-bottom: 0px;
   margin-left: auto;
   font-family: Arial, Helvetica, sans-serif;
   border: 2px solid #000;
   background-color: #FFF;
}
body {
   background-image: url(images/q1bg.png);
}
-->
</style>
</head>

<body>
<div id="wrapper">
<h1>Question #1</h1>
<p>Enter a nudmer in the fourm to get the:</p>
<ul>
<li>Circumference of a Circle</li>
<li>Area of a Circle</li>
</ul>
<p>Look at this form for information. Feel free to modify this form if you believe you need to.</p>
<form id="frm_q1" name="frm_q1" method="get" action="question1.php">
Enter the radius of a circle:
<input name="radius" type="text" id="radius" size="12" maxlength="12" />
<br />
<br />
<input type="submit" name="button" id="button" value="Submit" />
</form>
<p>&nbsp;</p>


</div>
</body>
</html>

Explanation / Answer


question1.php

$radius = $_GET['radius'];
echo "Circumference of circle is " + 2*3.14*radius;
echo "Radius of circle is " + 3.14*radius*radius;