} else {            $show_info = TRUE;        }        break;    case 'addserver':        if (count($configuration['Servers']) == 0) {            // First server will use defaults as in config.default.php            $defaults = $PMA_Config_Setup->default_server;            unset($defaults['AllowDeny']); // Ignore this for now        } else {            $defaults = array();        }        // Guess MySQL extension to use, prefer mysqli        if (!function_exists('mysql_get_client_info')) {            PMA_dl('mysql');        }        if (!function_exists('mysqli_get_client_info')) {            PMA_dl('mysqli');        }        if (function_exists('mysqli_get_client_info')) {            $defaults['extension'] = 'mysqli';        } elseif (function_exists('mysql_get_client_info')) {            $defaults['extension'] = 'mysql';        } else {            message('warning', 'Could not load either mysql or mysqli extension, you might not be able to use phpMyAdmin! Check your PHP configuration.');        }        if (isset($defaults['extension'])) {            message('notice', 'Autodetected MySQL extension to use: ' . $defaults['extension']);        }        // Display form        show_server_form($defaults);        break;    case 'editserver':        if (!isset($_POST['server'])) {            footer();        }        show_server_form($configuration['Servers'][$_POST['server']], $_POST['server']);        break;    case 'deleteserver':        if (!isset($_POST['server'])) {            footer();        }        message('notice', 'Deleted server ' . get_server_name($configuration['Servers'][$_POST['server']], $_POST['server']));        unset($configuration['Servers'][$_POST['server']]);        compress_servers($configuration);        $show_info = TRUE;        break;    case 'servers':        if (count($configuration['Servers']) == 0) {            message('notice', 'No servers defined, so none can be shown');        } else {            foreach ($configuration['Servers'] as $i => $srv) {                $data = array();                if (!empty($srv['verbose'])) {                    $data[] = array('Verbose name', $srv['verbose']);                }                $data[] = array('Host', $srv['host']);                $data[] = array('MySQL extension', isset($srv['extension']) ? $srv['extension'] : $PMA_Config_Setup->default_server['extension']);                $data[] = array('Authentication type', get_server_auth($srv));                $data[] = array('phpMyAdmin advanced features', empty($srv['pmadb']) || empty($srv['controluser']) || empty($srv['controlpass']) ? 'disabled' : 'enabled, db: ' . $srv['pmadb'] . ', user: ' . $srv['controluser']);                $buttons =                    get_action('deleteserver', 'Delete', '<input type="hidden" name="server" value="' . $i . '" />') .                    get_action('editserver', 'Edit', '<input type="hidden" name="server" value="' . $i . '" />');                show_overview('Server ' . get_server_name($srv, $i), $data, $buttons);            }        }        break;    case 'feat_upload_real':        if (isset($_POST['submit_save'])) {            $dirs = grab_values('UploadDir;SaveDir');            $err = FALSE;            if (!empty($dirs['UploadDir']) && !is_dir($dirs['UploadDir'])) {                message('error', 'Upload directory ' . htmlspecialchars($dirs['UploadDir']) . ' does not exist!');                $err = TRUE;            }            if (!empty($dirs['SaveDir']) && !is_dir($dirs['SaveDir'])) {                message('error', 'Save directory ' . htmlspecialchars($dirs['SaveDir']) . ' does not exist!');                $err = TRUE;            }            if ($err) {                show_upload_form($dirs);            } else {                $configuration = array_merge($configuration, $dirs);                message('notice', 'Configuration changed');                $show_info = TRUE;            }        } else {            $show_info = TRUE;        }        break;    case 'feat_upload':        show_upload_form($configuration);        break;    case 'feat_security_real':        if (isset($_POST['submit_save'])) {            $vals = grab_values('blowfish_secret;ForceSSL:bool;ShowPhpInfo:bool;ShowChgPassword:bool;AllowArbitraryServer:bool;LoginCookieRecall:book;LoginCookieValidity:int');            $err = FALSE;            if (empty($vals['blowfish_secret'])) {                message('warning', 'Blowfish secret is empty, you will not be able to use cookie authentication.');            }            if ($vals['AllowArbitraryServer']) {                message('warning', 'Arbitrary server connection might be dangerous as it might allow access to internal servers that are not reachable from outside.');            }            if (isset($vals['LoginCookieValidity']) && $vals['LoginCookieValidity'] < 1) {                message('error', 'Invalid cookie validity time');                $err = TRUE;            }            if ($err) {                show_security_form($vals);            } else {                $configuration = array_merge($configuration, $vals);                message('notice', 'Configuration changed');                $show_info = TRUE;            }        } else {            $show_info = TRUE;        }        break;    case 'feat_security':        show_security_form($configuration);        break;    case 'feat_manual_real':        if (isset($_POST['submit_save'])) {            $vals = grab_values('MySQLManualBase;MySQLManualType');            $err = FALSE;            if ($vals['MySQLManualType'] != 'none' && empty($vals['MySQLManualBase'])) {                message('error', 'You need to set manual base URL or choose type \'none\'.');                $err = TRUE;            }            if ($err) {                show_manual_form($vals);            } else {                $configuration = array_merge($configuration, $vals);                message('notice', 'Configuration changed');                $show_info = TRUE;            }        } else {            $show_info = TRUE;        }        break;    case 'feat_manual':        show_manual_form($configuration);        break;    case 'feat_charset_real':        if (isset($_POST['submit_save'])) {            $vals = grab_values('AllowAnywhereRecoding:bool;DefaultCharset;RecodingEngine;IconvExtraParams');            $err = FALSE;            if ($err) {                show_charset_form($vals);            } else {                $configuration = array_merge($configuration, $vals);                message('notice', 'Configuration changed');                $show_info = TRUE;            }        } else {            $show_info = TRUE;        }        break;    case 'feat_charset':        $d = $configuration;        if (!isset($d['RecodingEngine'])) {            if (@extension_loaded('iconv')) {                $d['RecodingEngine']         = 'iconv';            } elseif (@extension_loaded('recode')) {                $d['RecodingEngine']         = 'recode';            } else {                PMA_dl('iconv');                if (!@extension_loaded('iconv')) {                    PMA_dl('recode');                    if (!@extension_loaded('recode')) {                        message('warning', 'Neither recode nor iconv could be loaded so charset conversion will most likely not work.');                    } else {                        $d['RecodingEngine'] = 'recode';                    }                } else {                    $d['RecodingEngine']     = 'iconv';                }            }            if (isset($d['RecodingEngine'])) {                message('notice', 'Autodetected recoding engine: ' . $d['RecodingEngine']);            }        }        show_charset_form($d);        unset($d);        break;    case 'feat_extensions_real':        if (isset($_POST['submit_save'])) {            $vals = grab_values('GD2Available');            $err = FALSE;            if ($err) {                show_extensions_form($vals);            } else {                $configuration = array_merge($configuration, $vals);                message('notice', 'Configuration changed');                $show_info = TRUE;            }        } else {            $show_info = TRUE;        }        break;    case 'feat_extensions':        $d = $configuration;        if (!@extension_loaded('mbstring')) {            PMA_dl('mbstring');        }        if (!@extension_loaded('mbstring')) {            message('warning', 'Could not load <code>mbstring</code> extension, which is required for work with multibyte strings like UTF-8 ones. Please consider installing it.');        }        if (!isset($d['GD2Available'])) {            if (PMA_IS_GD2 == 1) {                message('notice', 'GD 2 or newer found.');                $d['GD2Available'] = 'yes';            } else {                message('warning', 'GD 2 or newer is not present.');                $d['GD2Available'] = 'no';            }        }        show_extensions_form($d);        unset($d);        break;    case 'feat_relation_real':        if (isset($_POST['submit_save'])) {            $vals = grab_values('QueryHistoryDB:bool;QueryHistoryMax:int;BrowseMIME:bool;PDFDefaultPageSize');            $err = FALSE;            if (isset($vals['QueryHistoryMax']) && $vals['QueryHistoryMax'] < 1) {                message('error', 'Invalid value for query maximum history size!');                $err = TRUE;            }            if ($err) {                show_relation_form($vals);            } else {                $configuration = array_merge($configuration, $vals);                message('notice', 'Configuration changed');                $show_info = TRUE;            }        } else {            $show_info = TRUE;        }        break;    case 'feat_relation':        show_relation_form($configuration);        break;    case 'lay_navigation_real':        if (isset($_POST['submit_save'])) {            $vals = grab_values('LeftFrameLight:bool;LeftFrameDBTree:bool;LeftFrameDBSeparator;LeftFrameTableSeparator;LeftFrameTableLevel:int;LeftDisplayLogo:bool;LeftDisplayServers:bool;DisplayServersList:bool;DisplayDatabasesList:bool;LeftPointerEnable:bool');            $err = FALSE;            if (isset($vals['LeftFrameTableLevel']) && $vals['LeftFrameTableLevel'] < 1) {                message('error', 'Invalid value for maximum table nesting level!');                $err = TRUE;            }            if ($err) {                show_left_form($vals);            } else {                $configuration = array_merge($configuration, $vals);                message('notice', 'Configuration changed');                $show_info = TRUE;            }        } else {            $show_info = TRUE;        }        break;    case 'lay_navigation':        show_left_form($configuration);        break;    case 'lay_tabs_real':        if (isset($_POST['submit_save'])) {            $vals = grab_values('DefaultTabServer;DefaultTabDatabase;DefaultTabTable;LightTabs:bool');            $err = FALSE;            if ($err) {                show_tabs_form($vals);            } else {                $configuration = array_merge($configuration, $vals);                message('notice', 'Configuration changed');                $show_info = TRUE;            }        } else {            $show_info = TRUE;        }        break;    case 'lay_tabs':        show_tabs_form($configuration);        break;    case 'lay_icons_real':        if (isset($_POST['submit_save'])) {            $vals = grab_values('ErrorIconic:bool;MainPageIconic:bool;ReplaceHelpImg:bool;NavigationBarIconic:tristate;PropertiesIconic:tristate');            $err = FALSE;            if ($err) {                show_icons_form($vals);            } else {                $configuration = array_merge($configuration, $vals);                message('notice', 'Configuration changed');                $show_info = TRUE;            }        } else {            $show_info = TRUE;        }        break;    case 'lay_icons':        show_icons_form($configuration);        break;    case 'lay_browse_real':        if (isset($_POST['submit_save'])) {            $vals = grab_values('BrowsePointerEnable:bool;BrowseMarkerEnable:bool;ModifyDeleteAtRight:bool;ModifyDeleteAtLeft:bool;RepeatCells:int;DefaultDisplay');            $err = FALSE;            if (isset($vals['RepeatCells']) && $vals['RepeatCells'] < 1) {                message('error', 'Invalid value for header repeating!');                $err = TRUE;            }            if (!$vals['ModifyDeleteAtLeft'] && !$vals['ModifyDeleteAtRight']) {                message('error', 'No action buttons enabled!');                $err = TRUE;            }            if ($err) {                show_browse_form($vals);            } else {                $configuration = array_merge($configuration, $vals);                message('notice', 'Configuration changed');                $show_info = TRUE;            }        } else {            $show_info = TRUE;        }        break;    case 'lay_browse':        show_browse_form($configuration);        break;    case 'lay_edit_real':        if (isset($_POST['submit_save'])) {            $vals = grab_values('TextareaCols:int;TextareaRows:int;LongtextDoubleTextarea:bool;TextareaAutoSelect:bool;CharEditing;CharTextareaCols:int;CharTextareaRows:int;CtrlArrowsMoving:bool;DefaultPropDisplay;InsertRows:int');            $err = FALSE;            if (isset($vals['TextareaCols']) && $vals['TextareaCols'] < 1) {                message('error', 'Invalid value for textarea columns!');                $err = TRUE;            }            if (isset($vals['TextareaRows']) && $vals['TextareaRows'] < 1) {                message('er