특정 게시판에 오늘 쓴 글만 나오게 하려면

$nowdateSearch = '';

//오늘것만 뽑기!

if ($bo_table == '개시판테이블명') {
    $nowdateSearch = "left(wr_datetime, 11) like '" . date('Y-m-d') . "%'";
    if ($is_search_bbs) { 
        $nowdateSearch = "and left(wr_datetime, 11) like '" . date('Y-m-d') . "%'";
    }
}

if ($is_search_bbs) {
    $sql = " select distinct wr_parent from {$write_table} where {$sql_search} {$nowdateSearch} {$sql_order} limit {$from_record}, $page_rows ";
} else {
    $sql = " select * from {$write_table} where  {$nowdateSearch} and wr_is_comment = 0 ";
    if(!empty($notice_array))
        $sql .= " and wr_id not in (".implode(', ', $notice_array).") ";
    $sql .= " {$sql_order} limit {$from_record}, $page_rows ";
}