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Codice PHP:

<?phpif(isset($_POST['invia'])){    $error = FALSE;    $nome = isset($_POST['nome']) ? trim( (string) $_POST['nome']) : '';    $cognome = isset($_POST['cognome']) ? trim( (string) $_POST['cognome']) : '';    $oggetto = isset($_POST['oggetto']) ? trim( (string) $_POST['oggetto']) : '';    $email = isset($_POST['email']) ? trim( (string) $_POST['email']) : '';    $messaggio = isset($_POST['messaggio']) ? trim( (string) $_POST['messaggio']) : '';
    if(empty($nome)) {        $error = TRUE;        $msg = 'Il campo nome è obbligatorio!';        }    else if(empty($cognome)){        $error = TRUE;        $msg = 'Il campo cognome è obbligatorio';        }    else if(empty($oggetto)){        $error = TRUE;        $msg = 'Il campo oggetto è obbligatorio';        }    else if(!preg_match('/^[_a-zA-Z0-9-]+(\.[_a-zA-Z0-9-]+)*@[a-zA-Z0-9-]+(\.[a-zA-Z0-9-]+)+$/', $email)){        $error = TRUE;        $msg = 'Il campo email è obbligatorio. Verifica di averlo digitato correttamente.';        }    else if(empty($messaggio)){        $error = TRUE;        $msg = 'Il campo messaggio è obbligatorio';        }    else{        require_once('lib/swift_required.php');        require_once('config.php');                if( (PORT_SMTP != FALSE) AND ( SECUTITY_SMTP != FALSE ) ){            $transport = Swift_SmtpTransport::newInstance(HOST_SMTP, PORT_SMTP, SECUTITY_SMTP);            }        else if( PORT_SMTP != FALSE ){            $transport = Swift_SmtpTransport::newInstance(HOST_SMTP, PORT_SMTP);            }        else{            $transport = Swift_SmtpTransport::newInstance(HOST_SMTP);            }                    $transport->setUsername(EMAIL_SMTP);        $transport->setPassword(PASSWORD_SMTP);             $mailer = Swift_Mailer::newInstance($transport);                $message = Swift_Message::newInstance($oggetto);        $message->setFrom(array($email => $nome));        $message->setTo(array(EMAIL_DESTINATARIO));        $message->setBody(        '<html>' .        '<head></head>' .        '<body>' .        'Nome:' . $nome . '<br />'.        'Cognome:' . $cognome . '<br />'.        'Messaggio:' . $messaggio . '<br />'.        '</body>' .        '</html>',        'text/html'        );                $message->setReturnPath(EMAIL_SMTP);
        if( (isset($_FILES["allegato"])) AND ($_FILES["allegato"]['name'] != '') ){            $tipologie_consentite = array('jpg', 'jpeg', 'png', 'gif', 'doc', 'docx', 'pdf', 'xls', 'zip', 'rar');            $path_info = pathinfo($_FILES["allegato"]['name']);
            if(!is_uploaded_file($_FILES["allegato"]['tmp_name'])){                                 $error = TRUE;                $msg = 'Si è verificato un errore durante il caricamento del file!';                 }            else if(!in_array(strtolower($path_info['extension']), $tipologie_consentite)){                $error = TRUE;                $msg = 'Il file non è fra i tipi consentiti!';                }
            else if($_FILES["allegato"]['size'] > MAX_DIM_FILE){
                $error = TRUE;                $msg = 'Il file allegato eccede la dimensione massima consentita!';                }
            else{                            $attachment = Swift_Attachment::fromPath($_FILES["allegato"]['tmp_name']);                 $attachment->setFilename($_FILES["allegato"]['name']);                 $message->attach($attachment);                }            }        }
    if($error === FALSE){        $result = $mailer->send($message);        if($result>0){            $msg = "Email inviata. Presto sarai ricontattato.";            }        else{            $msg = "Problemi nell'invio della email!";            }        }
    $get_var = urlencode($msg);    header('location: offerta-lavoro.php?msg=' . $get_var);    exit;  }?>
Grazie per qualsiasi aiuto, Alx