Декодирование BD base64

<?php
if(!defined('gamepl')) {
    die("Hacking attempt!");
}
include (ROOT_DIR.'/engine/data/conf.php');
include (ROOT_DIR.'/engine/function.php');
include (ROOT_DIR.'/engine/classes/mysql.class.php');
include (ROOT_DIR.'/langs/'.$conf['lang'].'.php');
$m = new Memcache;
$m->connect($conf['m_ip'],$conf['m_port']);
$conf['url'] = "http://".clear($_SERVER['HTTP_HOST'])."/";
$ajax_f = clear(@$_POST['ajax_f']);
$speedbar = "0";
$in = (int)@$_GET['in'];
if($in != "") {
    if(preg_match("/[^0-9]/",$in)) {
    } else {
        $db->query('SELECT * FROM tabl1 where id="'.$in.'"');
        if($db->num_rows() == "1") {
            set_cookie("invite",$in,7);
        }
    }
    header('location:'.$conf['url']);
}
$logingo = "0";
$logininfo = array();
$login = cod(clear(decod(@$_COOKIE['login'])));
$pass = cod(clear(decod(@$_COOKIE['pass'])));
if($login != "" and $pass != "") {
    $db->query('SELECT * FROM tabl1 where p1="'.$login.'" and p2="'.$pass.'"');
    if($db->num_rows() == "1") {
        $logininfo = $db->get_row();
        $logingo = "1";
        $db->query('update tabl1 set p8="'.cod($_SERVER['REMOTE_ADDR']).'" where id="'.
            $logininfo['id'].'"');
    }
}
include (ROOT_DIR.'/engine/classes/tpl.class.php');
$tpl->dir = ROOT_DIR.'/templates/default/';
define('TEMPLATE_DIR',$tpl->dir);
$do = @$_GET['do'];
if(preg_match ("/[^a-z,A-Z_]/", $do)){error($lang['2']);$do=false;}
if($do) {
    $module = @file(ROOT_DIR."/engine/modules/".$do.".php");
    if(!$module) {
        error($lang['2']);
    } else {
        include (ROOT_DIR."/engine/modules/".$do.".php");
    }
}



$sql_news_s = $db->query('SELECT * FROM tabl10 ORDER BY id DESC LIMIT 3');
while ( $row_news_s  = $db->get_row( $sql_news_s  ) ) {
    $tpl->load_template ( 'news_header.tpl' );
    $tpl->set ( '{id}', $row_news_s ['id'] );
    $tpl->set ( '{img}', $row_news_s ['img'] );
    $tpl->set ( '{title}', $row_news_s['title']);
    $tpl->set ( '{time}', substr($row_news_s['p2'], 0, strlen($row_news_s['p2'])-9) );
    $tpl->compile ( 'news_header' );
}

$tpl->load_template('header.tpl');
if($logingo == "1") {
    $tpl->set('{balance}',decod($logininfo['p7']).' руб.');
} else {
}
$tpl->set ( '{news_header}', $tpl->result['news_header'] );
$tpl->compile('header');


$tpl->load_template('nav.tpl');
$tpl->set('{data}',$tpl->result['nav_get']);
$tpl->compile('nav');
include (ROOT_DIR.'/engine/modules/speedbar.php');
if(!$do) {
    $tpl->result['news'] = @$m->get('index_news');
    if(empty($tpl->result['news'])){
        $sql_result = $db->query('SELECT * FROM tabl10 order by id desc');
        while ( $row_news = $db->get_row( $sql_result ) ) {
            $tpl->load_template ( 'news.tpl' );
            if(decod($row_news['p4']) != ""){
                $tpl->set ( '{text}', '<a href="'.decod($row_news['p4']).'">'.decod($row_news['p3']).'</a>' );
            }else{
                $tpl->set ( '{text}', decod($row_news['p3']) );
            }
            $tpl->set ( '{time}', langdate( "j F Y - H:i", decod($row_news['p2'])) );
            $tpl->compile ( 'news' );
        }
        $m->set('index_news', $tpl->result['news'], false, 3600);
    }
    $tpl->load_template ( 'index.tpl' );
    $tpl->compile ( 'content' );
    $tpl->result['content'] = str_replace('{news}', $tpl->result['news'],$tpl->result['content']);
}
$tpl->load_template('main.tpl');
$tpl->set('{title}',$title.$conf['title']);
if($tpl->result['error'] != "") {
    $tpl->set('{content}',$tpl->result['error'].$tpl->result['content']);
} else {
    $tpl->set('{content}',$tpl->result['content']);
}
$tpl->set('{header}',$tpl->result['header']);
if($tpl->result['nav_get'] != "") {
    $tpl->set('{sidebar}',$tpl->result['nav']);
} else {
    $tpl->set('{sidebar}','');
}
$tpl->set('{speedbar}',$tpl->result['speedbar']);
$tpl->set('{nChat}',$tpl->result['nChat']);
  
/*$stop = microtime();    
$arrend = explode(" ",$stop);  
$allend = $arrend[1] + $arrend[0];  
$alltime = $allend - $allbegin;    
$format = "%f";
printf($format,$alltime);
$tpl->set('{time_gen}', $format); */

$tpl->compile('main');
if($_POST['ajax'] != "1") {
    echo $tpl->result['main'];
} else {
    $sb = '';
    if($tpl->result['nav_get'] != "") {
        $sb = $tpl->result['nav'];
    }
    if($tpl->result['error'] != "") {
        echo $tpl->result['error'].$tpl->result['content'].
            '<div style="display:none;"><div id="nurl_title">'.$title.$conf['title'].
            '</div><div id="nurl_nav">'.$sb.'</div><div id="nurl_speedbar">'.$tpl->result['speedbar'].
            '</div></div>';
    } else {
        echo $tpl->result['content'].'<div style="display:none;"><div id="nurl_title">'.
            $title.$conf['title'].'</div><div id="nurl_nav">'.$sb.
            '</div><div id="nurl_speedbar">'.$tpl->result['speedbar'].'</div></div>';
    }
}
;
?>