$mw_sess_path = session_save_path();
$mw_cache_time = 86400; // 하루, 초단위 (60*60*24)
$mw_count = 0;
$mw_session_delete_table = "$g4[table_prefix]mw_session_delete";
$sql = "select count(*) as cnt from $mw_session_delete_table where sd_datetime >= '".date("Y-m-d 00:00:00", $g4[server_time])."'";
$qry = sql_query($sql, false);
if (!$qry) { // 테이블 생성
    $table_sql = "create table $mw_session_delete_table (
                  sd_id int auto_increment not null
                  ,mb_id varchar(20) not null
                  ,sd_datetime datetime not null
                  ,sd_delete_count int not null
                  ,primary key(sd_id)
                  ,index(sd_datetime));";
    $qry = sql_query($table_sql, false);
    if ($qry)
        $qry = sql_query($sql);
}
$row = sql_fetch_array($qry);
if (!$row[cnt]) { // 오늘 삭제한 기록이 없으면 세션삭제 실행
    if ($mw_handle = @opendir($mw_sess_path)) {
        while (false !== ($mw_file = @readdir($mw_handle))) {
            if (substr($mw_file, 0, 1) != "." && $mw_file != "index.php") {
                $mw_file = "$mw_sess_path/$mw_file";
                $mw_diff_time = $g4[server_time] - filemtime($mw_file);
                if ($mw_diff_time > $mw_cache_time) {
                    $mw_count++;
                    @unlink($mw_file);
                }
            }
        }
    }
    @closedir($mw_handle);
    $sql = "insert into $mw_session_delete_table set mb_id = '$mb_id', sd_datetime = '$g4[time_ymdhis]', sd_delete_count = '$mw_count'";
    $qry = sql_query($sql); // 삭제내역 기록
}