PMA\libraries\plugins\export\ExportXml::exportHeader PHP Method

    public function exportHeader()
    {
        $this->initSpecificVariables();
        global $crlf, $cfg, $db;
        $table = $this->_getTable();
        $tables = $this->_getTables();
        $export_struct = isset($GLOBALS['xml_export_functions']) || isset($GLOBALS['xml_export_procedures']) || isset($GLOBALS['xml_export_tables']) || isset($GLOBALS['xml_export_triggers']) || isset($GLOBALS['xml_export_views']);
        $export_data = isset($GLOBALS['xml_export_contents']) ? true : false;
        if ($GLOBALS['output_charset_conversion']) {
            $charset = $GLOBALS['charset'];
        } else {
            $charset = 'utf-8';
        }
        $head = '<?xml version="1.0" encoding="' . $charset . '"?>' . $crlf . '<!--' . $crlf . '- phpMyAdmin XML Dump' . $crlf . '- version ' . PMA_VERSION . $crlf . '- https://www.phpmyadmin.net' . $crlf . '-' . $crlf . '- ' . __('Host:') . ' ' . htmlspecialchars($cfg['Server']['host']);
        if (!empty($cfg['Server']['port'])) {
            $head .= ':' . $cfg['Server']['port'];
        }
        $head .= $crlf . '- ' . __('Generation Time:') . ' ' . Util::localisedDate() . $crlf . '- ' . __('Server version:') . ' ' . PMA_MYSQL_STR_VERSION . $crlf . '- ' . __('PHP Version:') . ' ' . phpversion() . $crlf . '-->' . $crlf . $crlf;
        $head .= '<pma_xml_export version="1.0"' . ($export_struct ? ' xmlns:pma="https://www.phpmyadmin.net/some_doc_url/"' : '') . '>' . $crlf;
        if ($export_struct) {
            $result = $GLOBALS['dbi']->fetchResult('SELECT `DEFAULT_CHARACTER_SET_NAME`, `DEFAULT_COLLATION_NAME`' . ' FROM `information_schema`.`SCHEMATA` WHERE `SCHEMA_NAME`' . ' = \'' . $GLOBALS['dbi']->escapeString($db) . '\' LIMIT 1');
            $db_collation = $result[0]['DEFAULT_COLLATION_NAME'];
            $db_charset = $result[0]['DEFAULT_CHARACTER_SET_NAME'];
            $head .= '    <!--' . $crlf;
            $head .= '    - Structure schemas' . $crlf;
            $head .= '    -->' . $crlf;
            $head .= '    <pma:structure_schemas>' . $crlf;
            $head .= '        <pma:database name="' . htmlspecialchars($db) . '" collation="' . htmlspecialchars($db_collation) . '" charset="' . htmlspecialchars($db_charset) . '">' . $crlf;
            if (count($tables) == 0) {
                $tables[] = $table;
            }
            foreach ($tables as $table) {
                // Export tables and views
                $result = $GLOBALS['dbi']->fetchResult('SHOW CREATE TABLE ' . Util::backquote($db) . '.' . Util::backquote($table), 0);
                $tbl = $result[$table][1];
                $is_view = $GLOBALS['dbi']->getTable($db, $table)->isView();
                if ($is_view) {
                    $type = 'view';
                } else {
                    $type = 'table';
                }
                if ($is_view && !isset($GLOBALS['xml_export_views'])) {
                    continue;
                }
                if (!$is_view && !isset($GLOBALS['xml_export_tables'])) {
                    continue;
                }
                $head .= '            <pma:' . $type . ' name="' . htmlspecialchars($table) . '">' . $crlf;
                $tbl = "                " . htmlspecialchars($tbl);
                $tbl = str_replace("\n", "\n                ", $tbl);
                $head .= $tbl . ';' . $crlf;
                $head .= '            </pma:' . $type . '>' . $crlf;
                if (isset($GLOBALS['xml_export_triggers']) && $GLOBALS['xml_export_triggers']) {
                    // Export triggers
                    $triggers = $GLOBALS['dbi']->getTriggers($db, $table);
                    if ($triggers) {
                        foreach ($triggers as $trigger) {
                            $code = $trigger['create'];
                            $head .= '            <pma:trigger name="' . htmlspecialchars($trigger['name']) . '">' . $crlf;
                            // Do some formatting
                            $code = mb_substr(rtrim($code), 0, -3);
                            $code = "                " . htmlspecialchars($code);
                            $code = str_replace("\n", "\n                ", $code);
                            $head .= $code . $crlf;
                            $head .= '            </pma:trigger>' . $crlf;
                        }
                        unset($trigger);
                        unset($triggers);
                    }
                }
            }
            if (isset($GLOBALS['xml_export_functions']) && $GLOBALS['xml_export_functions']) {
                $head .= $this->_exportRoutines($db, 'function', 'FUNCTION');
            }
            if (isset($GLOBALS['xml_export_procedures']) && $GLOBALS['xml_export_procedures']) {
                $head .= $this->_exportRoutines($db, 'procedure', 'PROCEDURE');
            }
            if (isset($GLOBALS['xml_export_events']) && $GLOBALS['xml_export_events']) {
                // Export events
                $events = $GLOBALS['dbi']->fetchResult("SELECT EVENT_NAME FROM information_schema.EVENTS " . "WHERE EVENT_SCHEMA='" . $GLOBALS['dbi']->escapeString($db) . "'");
                $head .= $this->_exportDefinitions($db, 'event', 'EVENT', $events);
            }
            unset($result);
            $head .= '        </pma:database>' . $crlf;
            $head .= '    </pma:structure_schemas>' . $crlf;
            if ($export_data) {
                $head .= $crlf;
            }
        }
        return PMA_exportOutputHandler($head);
    }