<?php
/**
* @author Adeola Odusola
*
* The following program calculates monthly mortgage for fixed interest rate.
* The user inputs the original loan amount, interest rate, and number of years.
*/
?>
<!DOCTYPE html>
<html>
<head>
<style>
table.my_table {
font-family: verdana,arial,sans-serif;
color:#333333;
border-width: 1px;
border-color: #999999;
border-collapse: collapse;
}
table.my_table th {
font-size:10px;
background:#b5cfd2;
border-width: 1px;
padding: 3px;
border-style: solid;
border-color: #999999;
}
table.my_table tr{
-webkit-print-color-adjust: exact;
}
table.my_table tr:nth-child(odd) {
background: #f2f2f2;
}
table.my_table tr:hover {
background-color: #ffff00;
}
table.my_table td {
font-size:10px;
border-width: 1px;
padding: 2px;
border-style: solid;
border-color: #999999;
}
</style>
<title>
Mortgage calculator and amortization table generator
</title>
</head>
<body>
<form method="post" action="">
<table>
<tr>
<td>
<label for="loan">Loan: $</label>
</td>
<td>
<input type="text" name="loan" value="" pattern="\d+((\.)\d{2})?" required>
</td>
</tr>
<tr>
<td>
<label for="rate">Rate: </label>
</td>
<td>
<input type="text" name="rate" value="" pattern="\d+((\.)\d{1,})?" required>
</td>
</tr>
<tr>
<td>
<label for="years">Years: </label>
</td>
<td>
<select name="years" required>
<option value="">select...</option>
<option value="5">5</option>
<option value="10">10</option>
<option value="15">15</option>
<option value="20">20</option>
<option value="25">25</option>
<option value="30">30</option>
<option value="40">40</option>
<option value="50">50</option>
</select>
</td>
</tr>
<tr>
<td></td>
<td>
<input type="submit" name="compute" value="calculate mortgage">
</td>
</tr>
</table>
</form>
<?php
if (isset($_POST['compute'])){
require_once 'Mortgage.php';
//input values
$loanAmount=$_POST['loan'];
$rawRate=$_POST['rate'];
$numberOfYears=$_POST['years'];
// get results
$mort=new Mortgage($loanAmount, $rawRate, $numberOfYears);
$results=$mort->getResults();
$summary=$results["summary"];
$amortization=$results["amortization"];
// display mortgage summary
echo "<div>Mortgage Summary</div>";
echo "<table class=\"my_table\">";
echo "<tr><td>Home Value: </td><td>$".$summary["homeValue"]."</td></tr>";
echo "<tr><td>Monthly Mortgage: </td><td>$".$summary["monthlyMortgage"]."</td></tr>";
echo "<tr><td>Total Payment: </td><td>$".$summary["totalPayment"]."</td></tr>";
echo "<tr><td>Total Interest: </td><td>$".$summary["totalInterest"]."</td></tr>";
echo "</table><br>";
// display amortization table
echo "<div>Amortization Schedule</div>";
echo "<table class=\"my_table\">";
echo "<tr><th>Month #</th><th>Mortgage</th><th>Principal</th><th>Interest</th><th>Balance</th></tr>";
foreach ($amortization as $row){
echo "<tr>";
echo "<td>".$row["monthNumber"]."</td>";
echo "<td>".$row["mortgage"]."</td>";
echo "<td>".$row["principal"]."</td>";
echo "<td>".$row["interest"]."</td>";
echo "<td>".$row["balance"]."</td>";
echo "</tr>";
if ( $row["monthNumber"]%12==0 && $row["monthNumber"]!=($numberOfYears*12) ){
// redisplay header
echo "<tr><th>Month #</th><th>Mortgage</th><th>Principal</th><th>Interest</th><th>Balance</th></tr>";
}
}
echo "</table>";
}
?>
</body>
</html>
|
Download
