I am working on a assignment in PHP but cannot get my results to show up now on a separate page, or at all. After adding in my IF statements, everything stopped working but I am not getting an error message. Any help would be appreciated. I have supplied all of my code below.
<?xml version="1.0" encoding="UTF-8" ?>
<!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">
<head>
<title>
Loans
</title>
<link rel="stylesheet" type="text/css" href="simple.css">
<?php include('header.html'); ?>
</head>
<body>
<form action="loans1.php" method="post">
<table>
<tr>
<td><Label id="principal" name="principal">Enter current balance.</Label></td>
<td><input id="P" name="P" type="textbox"></input></td>
</tr>
<tr>
<td><Label id="interest" name="interest">Enter current interest rate.</Label></td>
<td><input id="I" name="I" type="textbox"></input></td>
</tr>
<tr>
<td><Label id="duration" name="duration">Enter the duration of the loan.</Label></td>
<td><input id="L" name="L" type="textbox"></input></td>
</tr>
</table>
<input type="submit" value="Calculate" /> <br />
<br /><label id="result" name="result" text=""></label>
</form>
<?php
@ $p=$_POST['P'];
@ $i=$_POST['I'];
@ $l=$_POST['L'];
@ $result=$_POST['R'];
@ $vFlag=true;
@ $calculate=$_POST['Calculate'];
include('footer.html');
?>
</body>
</html>That is for my main page. The second code is for my PHP code.
<?xml version="1.0" encoding="UTF-8" ?>
<!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">
<head>
<title>
</title>
<link rel="stylesheet" type="text/css" href="simple.css">
</head>
<body>
<form action="loans.php" method="post">
<?php
include('header.html');
# Constants that will be used
define(MINP, 1000); # Minumum principle
define(MAXP, 1000000); # Maximum principle
define(MININT, 1); # Minimum interest rate
define(MAXINT, 100); # Maximum interest rate
define(MINL, 1); # Minium Length
define(MAXL, 100); # Maximum Length
# User input
$p = $_POST['P'];
$i = $_POST['I'];
$l = $_POST['L'];
$result = $_POST['R'];
$vFlag = true;
$calculate=$_POST['Calculate'];
if (isset($_POST['Calculate']))
{ # Begins if (isset($_POST['submit']))
if (($p < MINP) || ($p > MAXP))
{
echo 'The principale must be between 1,000 and 1,000,000. ' ;
$vFlag = false;
}
if (($i < MININT) || ($i > MAXINT))
{
echo 'The interest rate must be between 1% and 100%.';
$vFlag = false;
}
if (($l < MINL) || ($l > MAXL))
{
echo 'The length of the loan must be between 1 and 100 years.';
$vFlag = false;
}
if ($vFlag)
{
$mi = ($i / 1200);
$lresult = ($l * 12);
$a = (1 + $mi);
$result = (($p * $mi * (pow($a, $lresult))) / ((pow($a, $lresult)) - 1));
echo "The principal is " . $p . "<br />";
echo "The interest is " . $i . "<br />";
echo "The duration/length is " . $l . "<br />";
echo "The monthly interest is " . $mi . "<br />";
echo "The number of payments is " . $lresult . "<br />";
echo "The monthly payment is " . round($result, 2) . "<br />";
}
else
{
echo "Error in input<br />";
}
} # Ends if (isset($_POST['submit']))
include('footer.html');
?>
</body>
</html>Any help at all would be greatly appreciated.