ragazzi io ho questo problema ho fatto un upload e funziona correttamente ma con un file pdf di quasi due mega invece non va, ho cambiato la grandezza nel form ma ancora non va come posso fare . per far fare in modo che utente riesca a caricare file grossi fino a 3 mega?

Codice PHP:
<INPUT TYPE="hidden" name="MAX_FILE_SIZE" value="5000024000"><input class="textbox" name="UploadedFile" type="file"   size="20" > 
ù

Codice PHP:
(isset($_GET['action']) && $_GET['action'] == "upload") {
                                       $nome_documento = $_POST['nome_documento'];
                                        $id_condominio = $_POST['id_condominio'];
                                        $id_amministratore= $_SESSION['ammid'];
                                        Mkdir("/home/default/condominio.mobi/user/htdocs/documenti/$id_amministratore",0777);
                                        $uploaddir = "/home/default/condominio.mobi/user/htdocs/documenti/". $_SESSION['ammid']."/";
                                        $uploadfile = $uploaddir.basename($_FILES['UploadedFile']['name']);
                                        
                                        if (move_uploaded_file($_FILES['UploadedFile']['tmp_name'], $uploadfile)) {
                                                $link_documento = $_FILES['UploadedFile']['name'];
                                                $sql = "INSERT INTO `documenti` (`id_condominio` , `nome_documento`,`link_documento`,`id_amministratore`)  VALUES ('$id_condominio','$nome_documento','$link_documento','$id_amministratore')";
                                                @mysql_query($sql); 
                                                @header("Location: ./content.php?page=8&result=1");
                                        } else {
                                                @header("Location: ./content.php?page=8&result=0");
                                        }
                                }