[PHP] TCPDF + formularz Opcje

[Lolek13]

Witam,

Ucze sie TCPDF i stworzylem sobie prosty formularz.

[HTML] pobierz, plaintext 
        <form action="generate.php" method="post">
            <p>Title:
                <input type="text" name="title"></p>
            <input type="submit" value="Button">
        </form>
[HTML] pobierz, plaintext 

I chce pozniej generowac sobie pdf:

[PHP] pobierz, plaintext 
error_reporting(E_ALL);
require_once('/tcpdf/config/lang/pol.php');
require_once('/tcpdf/tcpdf.php');
ob_start();
// create new TC PDF object
$pdf = new TCPDF();
 
 
echo $title = $_POST['title'];
 
// page nr 1
$pdf->AddPage();
 
$txt1 = '<div id="body">
    <table border="1px">
        <tr>
            <td>
                <font face="Arial" size="10"><strong> Title*</strong></font>
            </td>
            <td>
                <font face="Arial" size="10"> '.$title.'</font>
            </td>
        </tr>
    </table>
</div> ';
 
$pdf->WriteHTML($txt1);
$pdf->Output('generate.pdf', 'I');
ob_end_flush();
[PHP] pobierz, plaintext 

w odpowiedzi dostaje taki blad

Notice: Undefined offset: 1 in C:\xampp\htdocs\PDFGeneration\tcpdf\tcpdf.php on line 23109
TCPDF ERROR: Some data has already been output, can't send PDF file

co robie zle ?