在php中查看所有表字段值而不使用while循环

Question

使用while循环查看所有表字段值，但重复相同的值多次。

如何解决它......？ 请任何人帮帮我？

$tender_select_query ="SELECT * FROM new_tender_one,new_tender_two,new_tender_three,new_tender_four WHERE new_tender_one.id = new_tender_two.tender_id AND new_tender_one.id = new_tender_three.tender_id AND new_tender_one.id = new_tender_four.tender_id";
$tender_select_result =mysql_query($tender_select_query);
while($tender_row = mysql_fetch_assoc($tender_select_result)){
    $id =$tender_row['id'];
    $work_name =$tender_row['work_name'];
    $procuring_entity =$tender_row['procuring_entity'];
    $reference_no =$tender_row['reference_no'];
    $procurement_method =$tender_row['procurement_method'];
    $bid_eligibility =$tender_row['bid_eligibility'];
    $last_date =$tender_row['last_date'];
    $pre_tend_info =$tender_row['pre_tend_info'];
    $comp_work =$tender_row['comp_work'];
    $tend_security =$tender_row['tend_security'];
    $tend_instruction =$tender_row['tend_instruction'];
    $tend_invite =$tender_row['tend_invite'];
    $cont_details =$tender_row['cont_details'];
    $publish_date =$tender_row['publish_date'];
    $tender_status =$tender_row['tender_status'];

    $tender_id =$tender_row['tender_id'];
    $tender_type =$tender_row['tender_type'];
    $tender_type_subcat =$tender_row['tender_type_subcat'];

    $item_name =$tender_row['item_name'];
    $item_description =$tender_row['item_description'];
    $item_offer =$tender_row['item_offer'];
    $quantity =$tender_row['quantity'];
    $unit_type =$tender_row['unit_type'];

    $required_name =$tender_row['required_name'];                       

Answer 1

问题在于您使用的query。

如果您在tender_id或new_tender_one左右拥有相同的new_tender_two，您肯定会获得多行。

<强> new_tender_one

id  | tender_title
1   | tender_1
2   | tender_2

<强> new_tender_two

tender_id | tenderer_name
    1     |  smith
    1     |  john
    2     |  paul

<强> result

id  | tender_title | tender_id | tenderer_name
1   | tender_1     |     1     |  smith
1   | tender_1     |     1     |  john
2   | tender_2     |     2     |  paul

确保表tender_id，new_tender_two，new_tender_three中没有重复new_tender_four。

如果有，则必须使用子查询。然后，您需要知道其他record所需的tables。 （例如：id 1 smith或john）。