Берендей

$filename = ROOT . '/database_backup/db.sql';
$mysqlDumpPath = '/usr/bin/mysqldump';
$mysqlDumpParam = ' --user=' . DB_USER . ' --password=' . DB_PASSWORD;
$mysqlDumpParam .= ' --no-create-db --add-drop-table --databases ' . DB_NAME;
if (file_exists($filename)) rename($filename, $filename . '.prev');
exec($mysqlDumpPath . $mysqlDumpParam . ' > ' . $filename);
say('Подготовка к выключению', 2);
setTimeout('shutdownTimer',"safe_exec('shutdown -h now');", 15);