Aim: Write a PHP program to display the Fibonacci series up to a given number.
<html>
<body>
<h2>Fibonacci Series</h2>
<form action="" method="post">
Enter the number :
<input type="text" name="number" />
<input type="submit" />
</form>
</body>
</html>
<?php
if ($_POST) {
$firstTerm = 0;
$secondTerm = 1;
$n = $_POST['number'];
while ($firstTerm <= $n) {
echo $firstTerm . "</br>";
$nextTerm = $firstTerm + $secondTerm;
$firstTerm = $secondTerm;
$secondTerm = $nextTerm;
}
}
?>
Output
