OLDBOY/bbs/link.php
<?php
include_once('./_common.php');

$html_title = '링크';

if (isset($write['wr_subject']) && $write['wr_subject']) {
    $html_title .= ' &gt; '.conv_subject($write['wr_subject'], 255);
}

$no = isset($_REQUEST['no']) ? preg_replace('/[^0-9]/i', '', $_REQUEST['no']) : '';

if (!($bo_table && $wr_id && $no))
    alert_close('값이 제대로 넘어오지 않았습니다.');

// SQL Injection 예방
$row = sql_fetch(" select count(*) as cnt from {$g5['write_prefix']}{$bo_table} ", FALSE);
if (!(isset($row['cnt']) && $row['cnt']))
    alert_close('존재하는 게시판이 아닙니다.');

if (!(isset($write['wr_link'.$no]) && $write['wr_link'.$no]))
    alert_close('링크가 없습니다.');

$ss_name = 'ss_link_'.$bo_table.'_'.$wr_id.'_'.$no;
if (empty($_SESSION[$ss_name]))
{
    $sql = " update {$g5['write_prefix']}{$bo_table} set wr_link{$no}_hit = wr_link{$no}_hit + 1 where wr_id = '{$wr_id}' ";
    sql_query($sql);

    set_session($ss_name, true);
}

goto_url(set_http($write['wr_link'.$no]));