phpMyAdmin 에서 sql 에 직접 입력하면 먹히는 쿼리가 php소스에서 안 먹힙니다 ㅜㅜ

$sql_union = "select wr_subject, wr_id, wr_datetime, wr_1 from g5_write_culture Union select wr_subject, wr_id, wr_datetime, wr_1 from g5_write_event Union select wr_subject, wr_id, wr_datetime, wr_1 from g5_write_item Union select wr_subject, wr_id, wr_datetime, wr_1 from g5_write_life Union select wr_subject, wr_id, wr_datetime, wr_1 from g5_write_place Union select wr_subject, wr_id, wr_datetime, wr_1 from g5_write_travel order by wr_datetime desc limit 0, 6;";

 

$result_union = sql_query($sql_union);

for ($j=0; $row_union = sql_fetch_array($result_union); $j++) {

$latest_subject = $row_union['wr_subject'];

$latest_category = $row_union['wr_1'];

$latest_datetime = $row_union['wr_datetime'];

$latest_id = $row_union['wr_id'];

}