Complete Code For Implement PHP Code For Recursive Fibonacci Series.
<!DOCTYPE html> <html> <head> <title>How To Implement PHP Code For Recursive Fibonacci Series</title> <meta name="viewport" content="width=device-width, initial-scale=1"> <link href="//maxcdn.bootstrapcdn.com/bootstrap/3.3.0/css/bootstrap.min.css" rel="stylesheet"> </head> <style> body { background: black; } .form-control { width: 80%; !important; } </style> <body> <body> <div class="container"> <br/><br/> <div class="text-center"> <h1 id="color" style="color: white;">Fibonacci Series</h1> </div> <div class="well"> <form method="post"> Enter a Number: <input class="form-control" type="text" name="number"><br><br> <input type="submit" class="btn btn-success" name="submit" value="Submit"> </form> <?php if(isset($_POST['number'])) { $number=$_POST['number']; function Fibonacci($number){ if ($number == 0)// if number is equal 0 returns 0 return 0; else if ($number == 1)//if number is equal 1 returns 1 return 1; // Recursive Call to get the upcoming numbers else return (Fibonacci($number-1) + Fibonacci($number-2)); } for ($counter = 0; $counter < $number; $counter++){ echo Fibonacci($counter),' '; } } ?> </div> </div> </body> </html>