_warning example

// ----- Skip the current tar name             if ($v_filename == $this->_tarname) {
                continue;
            }

            if ($v_filename == '') {
                continue;
            }

            // ----- ignore files and directories matching the ignore regular expression             if ($this->_ignore_regexp && preg_match($this->_ignore_regexp, '/' . $v_filename)) {
                $this->_warning("File '$v_filename' ignored");
                continue;
            }

            if (!file_exists($v_filename) && !is_link($v_filename)) {
                $this->_warning("File '$v_filename' does not exist");
                continue;
            }

            // ----- Add the file or directory header             if (!$this->_addFile($v_filename, $v_header, $p_add_dir, $p_remove_dir)) {
                return false;
            }