$result1 = sql_query(" select bo_table from {$g5['board_table']} where bo_table <> '' ", false);
for ($i=0; $row1=sql_fetch_array($result1); $i++) {
    $tmp_write_table = $g5['write_prefix'] . $row1['bo_table'];
    // 게시글
    sql_query(" update {$tmp_write_table} set wr_name = '".$_POST['mb_nick']."' where mb_id = '{$mb_id}' ");
}