Kako resetovati MySQL bazu?

class admin extends base {
function admin() {
global $CONF, $FORM, $LNG, $TMPL;

$TMPL['header'] = $LNG['a_header'];

if (!isset($_COOKIE['atsphp_sid_admin'])) {
$this->login();
}
else {
require_once("{$CONF['path']}/sources/misc/session.php");
$session = new session;
list($type, $data) = $session->get($_COOKIE['atsphp_sid_admin']);
if ($type == 'admin') {
$session->update($_COOKIE['atsphp_sid_admin']);

// Array containing the valid .php files from the sources/admin directory
$action = array(
'approve' => 1,
'approve_reviews' => 1,
'delete' => 1,
'delete_review' => 1,
'edit' => 1,
'edit_review' => 1,
'email' => 1,
'manage' => 1,
'manage_reviews' => 1,
'settings' => 1,
'skins' => 1
);

if (isset($FORM['b']) && isset($action[$FORM['b']])) {
$page_name = $FORM['b'];
require_once("{$CONF['path']}/sources/admin/{$page_name}.php");
$page = new $page_name;

$TMPL['content'] = $this->do_skin('admin');
}
elseif (isset($FORM['b']) && $FORM['b'] == 'logout') {
$this->logout();
}
else {
$this->main();
}
}
else {
$session->delete($_COOKIE['atsphp_sid_admin'], 'atsphp_sid_admin');
$TMPL['content'] = $LNG['g_session_expired'];
}
}
}

function login() {
global $CONF, $DB, $FORM, $LNG, $TMPL;

if (!isset($FORM['password']) || !$FORM['password']) {
$TMPL['content'] = $this->do_skin('admin_login');
}
else {
list($admin_password) = $DB->fetch("SELECT admin_password FROM {$CONF['sql_prefix']}_etc", __FILE__, __LINE__);
if ($admin_password == md5($FORM['password'])) {
require_once("{$CONF['path']}/sources/misc/session.php");
$session = new session;
$session->create('admin', 1);

$this->main();
}
else {
$this->error($LNG['g_invalid_p']);
}
}
}
function logout() {
global $CONF, $LNG, $TMPL;

require_once("{$CONF['path']}/sources/misc/session.php");
$session = new session;
$session->delete($_COOKIE['atsphp_sid_admin']);

$TMPL['content'] = $LNG['a_logout_message'];
}

function main() {
global $DB, $CONF, $LNG, $TMPL;

$TMPL['admin_content'] = "{$LNG['a_main']}<br /><br />";

list($num_waiting) = $DB->fetch("SELECT COUNT(*) FROM {$CONF['sql_prefix']}_sites WHERE active = 0", __FILE__, __LINE__);
if ($num_waiting == 1) {
$TMPL['admin_content'] .= "<b><a href=\"{$TMPL['list_url']}/index.php?a=admin&amp;b=approve\">{$LNG['a_main_approve']}</a></b><br /><br />";
}
elseif ($num_waiting > 1) {
$TMPL['admin_content'] .= "<b><a href=\"{$TMPL['list_url']}/index.php?a=admin&amp;b=approve\">".sprintf($LNG['a_main_approves'], $num_waiting)."</a></b><br /><br />";
}

list($num_waiting_rev) = $DB->fetch("SELECT COUNT(*) FROM {$CONF['sql_prefix']}_reviews WHERE active = 0", __FILE__, __LINE__);
if ($num_waiting_rev == 1) {
$TMPL['admin_content'] .= "<b><a href=\"{$TMPL['list_url']}/index.php?a=admin&amp;b=approve_reviews\">{$LNG['a_main_approve_rev']}</a></b><br /><br />";
}
elseif ($num_waiting_rev > 1) {
$TMPL['admin_content'] .= "<b><a href=\"{$TMPL['list_url']}/index.php?a=admin&amp;b=approve_reviews\">".sprintf($LNG['a_main_approve_revs'], $num_waiting_rev)."</a></b><br /><br />";
}

$phpversion = phpversion();
if (version_compare($phpversion, '4.3.0', '>=')) {
$latest_version = @file_get_contents('http://www.aardvarkind.com/topsitesphp/version.txt');
}
if (!$latest_version) {
$latest_version = '?';
}
$TMPL['admin_content'] .= "{$LNG['a_main_your']}: {$TMPL['version']}<br />{$LNG['a_main_latest']}: {$latest_version}<br />\n{$LNG['a_main_new']}";


$TMPL['content'] = $this->do_skin('admin');
}
}
?>

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