Fibonacci sequence
Fibonacci sequence
| Sequence # |
Value |
| F0 |
0 |
| F1 |
1 |
| F2 |
1 |
| F3 |
2 |
| F4 |
3 |
| F5 |
5 |
| F6 |
8 |
| F7 |
13 |
| F8 |
21 |
| F9 |
34 |
| F10 |
55 |
CODE FOLLOWS
<?php
// Include the header file
include('includes/header.php');
?>
<!DOCTYPE html>
<html lang="en">
<head>
<title>Fibonacci sequence</title>
<link rel="stylesheet" type="text/css" href="common.css" />
<style type="text/css">
th { text-align: left; background-color: #999; }
th, td { padding: 0.4em; }
tr.alt td { background: #ddd; }
</style>
</head>
<body>
<h2>Fibonacci sequence</h2>
<table cellspacing="0" border="0" style="width: 20em; border: 1px solid
#666;">
<tr>
<th>Sequence #</th>
<th>Value</th>
</tr>
<tr>
<td>F<sub>0</sub></td>
<td>0</td>
</tr>
<tr class="alt">
<td>F<sub>1</sub></td>
<td>1</td>
</tr>
<?php
$iterations = 10;
$num1 = 0;
$num2 = 1;
for ( $i=2; $i <= $iterations; $i++ )
{
$sum = $num1 + $num2;
$num1 = $num2;
$num2 = $sum;
?>
<tr<?php if ( $i % 2 != 0 ) echo ' class="alt"' ?>>
<td>F<sub><?php echo $i?></sub></td>
<td><?php echo $num2?></td>
</tr>
<?php
}
?>
</table>
</body>
</html>
<?php
include('includes/footer.php');
?>