Rinominare file

[Mister]

Sono alla prime armi,

avendo una form con diversi campi: nome, cognome e upload allegato, è possibile che il file in upload venga rinominato con i risultati dei campi nome e cognome?

ES: nome_cognome_fileallegato.pdf?

Sotto la parte di codice dell'upload.

Grazie.

/**
 * Uploads a file for a particular form submission field.
 *
 * This is to be called AFTER the submission has already been added to the database - it uploads the
 * file to the specified folder then updates the database record.
 *
 * @param integer $form_id The unique form ID.
 * @param integer $submission_id A unique submission ID.
 * @param integer $field_id A unique field ID.
 * @param array $fileinfo An index from the $_FILES array (containing all data about the file)
 * @return array Returns array with indexes:

 *               [0]: true/false (success / failure)

 *               [1]: message string

 *               [2]: If success, the filename of the uploaded file
 */
function ft_upload_file($form_id, $submission_id, $field_id, $fileinfo)
{
    global $g_table_prefix, $LANG;

    // get the column name and upload folder for this field
    $field_info = ft_get_form_field($field_id);
    $col_name    = $field_info['col_name'];
    $file_upload_dir = $field_info['file_upload_dir'];
    $file_upload_url = $field_info['file_upload_url'];
    $file_upload_max_size = $field_info['file_upload_max_size'];
    $file_upload_types = $field_info['file_upload_types'];

    // if the column name wasn't found, the $field_id passed in was invalid. Return false.
    if (empty($col_name))
        return array(false, $LANG["notify_submission_no_field_id"]);

    // convert any whitespace chars in filename to underscores [list may be expanded later]
    $filename     = preg_replace("/\s+/", "_", $fileinfo["name"]);
    $tmp_filename = $fileinfo["tmp_name"];
    $filesize     = $fileinfo["size"];

    // check file size
    if ($filesize > $file_upload_max_size)
        return array(false, $LANG["notify_file_too_large"]);

    // check upload folder is valid and writable
    if (!is_dir($file_upload_dir) || !is_writable($file_upload_dir))
        return array(false, $LANG["notify_invalid_field_upload_folder"]);

    // check file extension is valid. Note: this is "dumb" - it just tests for the file extension, not
    // the actual file type based on it's header info [this is done because I want to allow users to permit
    // uploading of any file types, and I can't know the headers of all of them]
    $is_valid_extension = true;
    if (!empty($file_upload_types))
    {
        $is_valid_extension = false;
        $raw_extensions = explode(",", $file_upload_types);

        foreach ($raw_extensions as $ext)
        {
            // remove whitespace and periods
            $clean_extension = str_replace(".", "", trim($ext));

            if (preg_match("/$clean_extension$/", $filename))
                $is_valid_extension = true;
        }
    }

    // all checks out!
    if ($is_valid_extension)
    {
        // check for duplicate filenames and get a unique name
        $unique_filename = ft_check_duplicate_filename($file_upload_dir, $filename);

        // copy file to uploads folder and remove temporary file
        if (rename($tmp_filename, "$file_upload_dir/$unique_filename"))
        {
            @chmod("$file_upload_dir/$unique_filename", 0777);

            // update the database
            $query = "
                UPDATE {$g_table_prefix}form_{$form_id}
                SET    $col_name = '$unique_filename'
                WHERE  submission_id = $submission_id
                             ";

            $link = ft_db_connect();
            mysql_query($query);
            ft_db_disconnect($link);

            return array(true, $LANG["notify_file_uploaded"], $unique_filename);
        }
        else
            return array(false, $LANG["notify_file_not_uploaded"]);
    }

    // not a valid extension. Inform the user
    else
        return array(false, $LANG["notify_unsupported_file_extension"]);
}