Untitled

<?php
define('BASE_URL', 'https://api.twitter.com/1/users/profile_image?screen_name=');

if ($_SERVER['REQUEST_METHOD'] == 'POST') {
  $handle = $_POST['handle'];
  $size = 'bigger';
  if (isset($handle) && isset($size)) {
$twitterURL = BASE_URL . $handle . '&size=' . $size;
 }
}
?>


<!DOCTYPE HTML>
<html lang="it-IT">
<head>
<meta charset="UTF-8">
<title>Get TwitterPic</title>
<link href='http://fonts.googleapis.com/css?family=Source+Sans+Pro:200' rel='stylesheet' type='text/css'>
<link rel="stylesheet" href="style.css">

</head>
<body>

<div id="wrapper">
<h1>Get image from twitter</h1>

<form action="<?php echo $_SERVER['PHP_SELF'] ?>" method="post">
    <p><label for="handle">Twitter Handle</label>
        <input type="text" id="twitter" name="handle" placeholder="Twitter Handle"></p>


    <p><input type="submit" value="Get Twitter Pic"></p>
    </form>
  <?php if (isset($size) && isset($twitterURL)): ?>
<img src="<?= $twitterURL ?>">
  <?php endif; ?>
</div>


</body>
</html>