질문좀드리겠습니다.

<?phpinclude_once('./_common.php');$g5['title'] = '전체검색 결과';include_once('./_head.php');$search_table = Array();$table_index = 0;$write_pages = "";$text_stx = "";$srows = 0;$stx = strip_tags($stx);//$stx = preg_replace('/[[:punct:]]/u', '', $stx); // 특수문자 제거$stx = get_search_string($stx); // 특수문자 제거if ($stx) {    $stx = preg_replace('/\//', '\/', trim($stx));    $sop = strtolower($sop);    if (!$sop || !($sop == 'and' || $sop == 'or')) $sop = 'and'; // 연산자 and , or    $srows = isset($_GET['srows']) ? (int)preg_replace('#[^0-9]#', '', $_GET['srows']) : 10;    if (!$srows) $srows = 10; // 한페이지에 출력하는 검색 행수    $g5_search['tables'] = Array();    $g5_search['read_level'] = Array();    $sql = " select gr_id, bo_table, bo_read_level from {$g5['board_table']} where bo_use_search = 1 and bo_list_level <= '{$member['mb_level']}' ";    if ($gr_id)        $sql .= " and gr_id = '{$gr_id}' ";    $onetable = isset($onetable) ? $onetable : "";    if ($onetable) // 하나의 게시판만 검색한다면        $sql .= " and bo_table = '{$onetable}' ";    $sql .= " order by bo_order, gr_id, bo_table ";    $result = sql_query($sql);    for ($i=0; $row=sql_fetch_array($result); $i++)    {        if ($is_admin != 'super')        {            // 그룹접근 사용에 대한 검색 차단            $sql2 = " select gr_use_access, gr_admin from {$g5['group_table']} where gr_id = '{$row['gr_id']}' ";            $row2 = sql_fetch($sql2);            // 그룹접근을 사용한다면            if ($row2['gr_use_access']) {                // 그룹관리자가 있으며 현재 회원이 그룹관리자라면 통과                if ($row2['gr_admin'] && $row2['gr_admin'] == $member['mb_id']) {                    ;                } else {                    $sql3 = " select count(*) as cnt from {$g5['group_member_table']} where gr_id = '{$row['gr_id']}' and mb_id = '{$member['mb_id']}' and mb_id <> '' ";                    $row3 = sql_fetch($sql3);                    if (!$row3['cnt'])                        continue;                }            }        }        $g5_search['tables'][] = $row['bo_table'];        $g5_search['read_level'][] = $row['bo_read_level'];    }    $search_query = 'sfl='.urlencode($sfl).'&amp;stx='.urlencode($stx).'&amp;sop='.$sop;    $text_stx = get_text(stripslashes($stx));    $op1 = '';    // 검색어를 구분자로 나눈다. 여기서는 공백    $s = explode(' ', strip_tags($stx));    // 검색필드를 구분자로 나눈다. 여기서는 +    $field = explode('||', trim($sfl));    $str = '(';    for ($i=0; $i<count($s); $i++) {        if (trim($s[$i]) == '') continue;        $search_str = $s[$i];        // 인기검색어        insert_popular($field, $search_str);        $str .= $op1;        $str .= "(";        $op2 = '';        // 필드의 수만큼 다중 필드 검색 가능 (필드1+필드2...)        for ($k=0; $k<count($field); $k++) {            $str .= $op2;            switch ($field[$k]) {                case 'mb_id' :                case 'wr_name' :                    $str .= "$field[$k] = '$s[$i]'";                    break;                case 'wr_subject' :                case 'wr_content' :                    if (preg_match("/[a-zA-Z]/", $search_str))                        $str .= "INSTR(LOWER({$field[$k]}), LOWER('{$search_str}'))";                    else                        $str .= "INSTR({$field[$k]}, '{$search_str}')";                    break;                default :                    $str .= "1=0"; // 항상 거짓                    break;            }            $op2 = " or ";        }        $str .= ")";        $op1 = " {$sop} ";    }    $str .= ")";    $sql_search = $str;    $str_board_list = "";    $board_count = 0;    $time1 = get_microtime();    $total_count = 0;    for ($i=0; $i<count($g5_search['tables']); $i++) {        $tmp_write_table   = $g5['write_prefix'] . $g5_search['tables'][$i];        $sql = " select wr_id from {$tmp_write_table} where {$sql_search} ";        $result = sql_query($sql, false);        $row['cnt'] = @sql_num_rows($result);        $total_count += $row['cnt'];        if ($row['cnt']) {            $board_count++;            $search_table[] = $g5_search['tables'][$i];            $read_level[]   = $g5_search['read_level'][$i];            $search_table_count[] = $total_count;            $sql2 = " select bo_subject, bo_mobile_subject from {$g5['board_table']} where bo_table = '{$g5_search['tables'][$i]}' ";            $row2 = sql_fetch($sql2);            $sch_class = "";            $sch_all = "";            if ($onetable == $g5_search['tables'][$i]) $sch_class = "class=sch_on";            else $sch_all = "class=sch_on";            $str_board_list .= '<li><a href="'.$_SERVER['SCRIPT_NAME'].'?'.$search_query.'&amp;gr_id='.$gr_id.'&amp;onetable='.$g5_search['tables'][$i].'" '.$sch_class.'><strong>'.((G5_IS_MOBILE && $row2['bo_mobile_subject']) ? $row2['bo_mobile_subject'] : $row2['bo_subject']).'</strong><span class="cnt_cmt">'.$row['cnt'].'</span></a></li>';        }    }    $rows = $srows;    $total_page = ceil($total_count / $rows);  // 전체 페이지 계산    if ($page < 1) { $page = 1; } // 페이지가 없으면 첫 페이지 (1 페이지)    $from_record = ($page - 1) * $rows; // 시작 열을 구함    for ($i=0; $i<count($search_table); $i++) {        if ($from_record < $search_table_count[$i]) {            $table_index = $i;            $from_record = $from_record - $search_table_count[$i-1];            break;        }    }    $bo_subject = array();    $list = array();    $k=0;    for ($idx=$table_index; $idx<count($search_table); $idx++) {        $sql = " select bo_subject, bo_mobile_subject from {$g5['board_table']} where bo_table = '{$search_table[$idx]}' ";        $row = sql_fetch($sql);        $bo_subject[$idx] = ((G5_IS_MOBILE && $row['bo_mobile_subject']) ? $row['bo_mobile_subject'] : $row['bo_subject']);        $tmp_write_table = $g5['write_prefix'] . $search_table[$idx];        $sql = " select * from {$tmp_write_table} where {$sql_search} order by wr_id desc limit {$from_record}, {$rows} ";        $result = sql_query($sql);        for ($i=0; $row=sql_fetch_array($result); $i++) {            // 검색어까지 링크되면 게시판 부하가 일어남            $list[$idx][$i] = $row;            $list[$idx][$i]['href'] = './board.php?bo_table='.$search_table[$idx].'&amp;wr_id='.$row['wr_parent'];            if ($row['wr_is_comment'])            {                $sql2 = " select wr_subject, wr_option from {$tmp_write_table} where wr_id = '{$row['wr_parent']}' ";                $row2 = sql_fetch($sql2);                //$row['wr_subject'] = $row2['wr_subject'];                $row['wr_subject'] = get_text($row2['wr_subject']);            }            // 비밀글은 검색 불가            if (strstr($row['wr_option'].$row2['wr_option'], 'secret'))                $row['wr_content'] = '[비밀글 입니다.]';            $subject = get_text($row['wr_subject']);            if (strstr($sfl, 'wr_subject'))                $subject = search_font($stx, $subject);            if ($read_level[$idx] <= $member['mb_level'])            {                //$content = cut_str(get_text(strip_tags($row['wr_content'])), 300, "…");                $content = strip_tags($row['wr_content']);                $content = get_text($content, 1);                $content = strip_tags($content);                $content = str_replace('&nbsp;', '', $content);                $content = cut_str($content, 300, "…");                if (strstr($sfl, 'wr_content'))                    $content = search_font($stx, $content);            }            else                $content = '';            $list[$idx][$i]['subject'] = $subject;            $list[$idx][$i]['content'] = $content;            $list[$idx][$i]['name'] = get_sideview($row['mb_id'], get_text(cut_str($row['wr_name'], $config['cf_cut_name'])), $row['wr_email'], $row['wr_homepage']);            $k++;            if ($k >= $rows)                break;        }        sql_free_result($result);        if ($k >= $rows)            break;        $from_record = 0;    }    $write_pages = get_paging(G5_IS_MOBILE ? $config['cf_mobile_pages'] : $config['cf_write_pages'], $page, $total_page, $_SERVER['SCRIPT_NAME'].'?'.$search_query.'&amp;gr_id='.$gr_id.'&amp;srows='.$srows.'&amp;onetable='.$onetable.'&amp;page=');}$group_select = '<label for="gr_id" class="sound_only">게시판 그룹선택</label><select name="gr_id" id="gr_id" class="select"><option value="">전체 분류';$sql = " select gr_id, gr_subject from {$g5['group_table']} order by gr_id ";$result = sql_query($sql);for ($i=0; $row=sql_fetch_array($result); $i++)    $group_select .= "<option value=\"".$row['gr_id']."\"".get_selected($_GET['gr_id'], $row['gr_id']).">".$row['gr_subject']."</option>";$group_select .= '</select>';if (!$sfl) $sfl = 'wr_subject';if (!$sop) $sop = 'or';include_once($search_skin_path.'/search.skin.php');include_once('./_tail.php'); ?>