E-Mails Extrator from Text (Mini helper)

<!DOCTYPE html>
<html>
<head>
  <title>Mail Extrator by Kyfx</title>
  <style type="text/css">
        textarea{
                    font-size: 15px;
            font-family: Tahoma;
            color: #0078AA;
            border: dashed 1pt #0000BB;
                }
        input{
           color: #FF0000;
           border: dotted 1pt #0078AA;
             }
</style>
</head>
<body>
  <center> <br>
  Mail Extrator from Text (is just mini helper)  <br>
  coded by <a href="https://twitter.com/3M4i1">Kyfx</a> and i want to say thanks to my frineds <br>
  Thamk u supporters<a href="https://twitter.com/3M4i1">Twitter</a> or
  my <a href="http://pastebin.com/u/Kyfx">pastebin account</a> <br><br>
      <form  method="post">
     <textarea name="magnom" cols="111" rows="15"></textarea> <br>
     <input type="submit" name="mr" value="Extrat Emails only"/>
      </form>
<br>
  </center>
</body>
</html>
<?php
  if($_POST['mr']){
 $text=$_POST['magnom'];
 preg_match_all('#[A-Z0-9a-z._%+-]+@[A-Za-z0-9.+-]+#',$text,$matches);
foreach ($matches[0] as $ul){
  echo $ul."<br>";
}         }
?>