---------------------------------------------------------------------------------FPDF CREAZIONE  E INVIO ALLEGATO EMAIL CON CANCELLAZIONE

FPDF code:

require_once('fpdf/fpdf.php');
$fpdf = new FPDF();
$text="test";

$fpdf->SetMargins(0, 0, 0);
$fpdf->SetAutoPageBreak(true, 0);

define('FPDF_FONTPATH', 'font/');

$fpdf->AddFont('Verdana', '','verdana.php'); // Standard Arial

$fpdf->addPage('L');

$fpdf->Image('images/certificate.jpg', 0, 0, 297, 210);

$fpdf->SetFont('Verdana', '');
$fpdf->SetFontSize(28);
$fpdf->SetTextColor(32, 56, 100);
$fpdf->SetXY(108, 52); //
$fpdf->Cell(80, 6, $text, 0,0, 'C');

$fpdf->Output('Filename.pdf', 'i');

PHPMailer code:

require 'phpmailer/PHPMailerAutoload.php';
$mail = new PHPMailer;
$mail->IsSMTP();                                // Set mailer to use SMTP
$mail->Host = 'gator3095';                      // Specify main and backup server
$mail->Port = 587;                              // Set the SMTP port
$mail->SMTPAuth = true;                         // Enable SMTP authentication
$mail->Username = 'username';                   // SMTP username
$mail->Password = 'password';                   // SMTP password
$mail->SMTPSecure = 'tls';                      // Enable encryption, 'ssl' also accepted
$mail->From = 'test@hotmail.com.com';
$mail->FromName = 'John Doe';
$mail->AddAddress('recipient@hotmail.com', '');  // Add a recipient
$mail->IsHTML(true);                             // Set email format to HTML

$mail->Subject = 'subject';
$mail->Body    = 'message body';
$mail->AltBody = 'messge body';
$mail->AddAttachment("c:/temp/test.php", "test.php");

if(!$mail->Send()) {
   echo 'Message could not be sent.';
   echo 'Mailer Error: ' . $mail->ErrorInfo;
   exit;
}
echo 'Message has been sent';

REeplace $fpdf->Output('Filename.pdf', 'i'); by $fpdf->Output('Filename.pdf', 'S'); to save your PDF on the harddrive instead of sending it directly to the browser (as explained in the doc).

Then call your FPDF code to generate the PDF file in the begining or before your PHPmailer.php code, replace $mail->AddAttachment("c:/temp/test.php", "test.php"); by $mail->AddAttachment("[...the exact place where your file is..]/Filename.pdf", "Filename.pdf");

And finally, before your last echo, add unlink('Filename.pdf'); to delete the temporary PDF file you've just sended.

------------------------altra versione-----

require('lib/FPDF/fpdf.php');
    require 'lib/PHPMailer/PHPMailerAutoload.php';
    $pdf = new FPDF();
    $pdf->AddPage();
    $pdf->SetFont('Arial','B',16);
    $pdf->Write(5,'Hello India');

    $mail = new PHPMailer;
    $mail->isSMTP();                                // Set mailer to use SMTP
    $mail->Host = SmtpServer;                       // SMTP server
    $mail->SMTPAuth = true;                         // Enable SMTP authentication
    $mail->Username = SmtpUsername;                 // SMTP username
    $mail->Password = SmtpPassword;                 // SMTP password
    $mail->SMTPSecure = 'tls';                      // Enable TLS encryption, `ssl` also accepted
    $mail->From = FromEmail;
    $mail->Port = 587;                              // SMTP Port
    $mail->FromName  = 'testing';

    $mail->Subject   = $subject;
    $mail->Body      = $body;
    $mail->AddAddress($emails);
    $mail->addStringAttachment($pdf->Output("S",'OrderDetails.pdf'), 'OrderDetails.pdf', $encoding = 'base64', $type = 'application/pdf');
    return $mail->Send();