Answer: Copy the below code and paste it into "your.php" file. After done this you will just need to run "your.php" file in browser and you will get the output successfully.
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" />
<title>Fibonancy series</title>
</head>
<body>
<h1><center>Fibonancy series</center></h1>
<?php
$a = 0;
$b = 1;
$sum = 0;
?>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
Enter number of terms:<input type="text" name="name">
<input type="submit" name="submit" value="OK"><br>
</form>
<?php
if (isset($_POST['submit'])) {
$term = $_POST['name'];
echo "$a,$b,";
while ($term - 2) {
$sum = $a + $b;
$a = $b;
$b = $sum;
$term--;
echo $sum . ",";
}
}
?>
</body>
</html>
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