how do I get display answer in an input element?

attaboy · February 5, 2012

When I hit the submit button I would like the answer to appear in the box labled answer. Is that possible?

<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>Untitled Document</title>
<style type="text/css">
input {position:absolute; left:120px;}
p {margin-bottom:-10px;}
</style>
</head>

<body>
<form method="post" action="<?php echo $_SERVER['PHP_SELF'];?>">
<p>first number:<input type="text" name="first_number" /></p>
<p>second number:<input type="text" name="second_number" /></p>
<p>answer:<input type="text" name="answer" /></p>
<ul>
<li>add: <input type="radio" name="group1" value="add" /></li>
<li>subtract: <input type="radio" name="group1" value="subtract" /></li>
<li>multiply: <input type="radio" name="group1" value="multiply" /></li>
<li>divide: <input type="radio" name="group1" value="divide" /></li>
</ul>
<p><input type="submit" value="submit" /></p>
</form>

<?php 
$answer = $_POST['group1'];
$first = $_POST['first_number'];
$second = $_POST['second_number'];

$ans=0;
    if ($answer == "add") {
	$ans = $first + $second;
        echo $ans;
    }
    else if ($answer == "subtract"){
	$ans = $first - $second;
        echo $ans;
}
    else if ($answer == "multiply"){
	$ans = $first * $second;
        echo $ans;
    }
    else if ($answer == "divide"){
	$ans = $first / $second;
        echo $ans;
    }
else {
	echo 'damm...';
}
?> 
</body>
</html>

sunfighter · February 6, 2012

Yes it is and a few more things also:

file name is test_2.php

<?php
$ans='';
$what = 'answer:';
$group='';
$first='';
$second='';

if(isset($_POST["msoft"]) && ($_POST["msoft"] == "trash"))
{
if(isset($_POST['first_number'])) $first = $_POST['first_number'];
if(isset($_POST['second_number'])) $second = $_POST['second_number'];
if(isset($_POST['group1'])) $group = $_POST['group1'];
if ($first != '' && $second != '')
{
	switch ($group)
	{
	    case "add":
	        $ans = $first + $second;
			$what = 'addition';
	        break;
	    case "subtract":
	        $ans = $first - $second;
			$what = 'subtraction';
	        break;
	    case "multiply":
	        $ans = $first * $second;
			$what = 'multiplication';
	        break;
	    case "divide":
	        $ans = $first / $second;
			$what = 'division';
	        break;
	    default:
	       $ans = 'damm...';
	}
}else{
	$ans = 'damm...';
}
}
?>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Untitled Document</title>

<style type="text/css">
input {position:absolute; left:120px;}
p {margin-bottom:-10px;}
</style>
</head>

<body>
<form method="post" action="test_2.php">
<input type="hidden" name="msoft" value="trash" />
<p>first number:<input type="text" name="first_number" value="<?php echo $first; ?>" /></p>
<p>second number:<input type="text" name="second_number" value="<?php echo $second; ?>" /></p>
<p><?php echo $what; ?><input type="text" name="answer" id="answer" value="<?php echo $ans; ?>" /></p>
<ul>
	<li>add: <input type="radio" name="group1" value="add" /></li>
	<li>subtract: <input type="radio" name="group1" value="subtract" /></li>
	<li>multiply: <input type="radio" name="group1" value="multiply" /></li>
	<li>divide: <input type="radio" name="group1" value="divide" /></li>
</ul>
<p><input type="submit" value="submit" /></p>
</form>
</body>
</html>

Sign In

how do I get display answer in an input element?

Recommended Posts

attaboy

Link to comment

Share on other sites

sunfighter

Link to comment

Share on other sites

Join the conversation

Browse

Activity

Important Information