我有一个工作查询,在我的数据库以及前端成功显示正确的行。目前我的PHP代码:Get_num_rows无法正确显示,如果没有结果
$rows = $result->num_rows;
if($rows>=0){
foreach ($result as $row) {
echo '<h5 style="background-color:yellow;width:60%"><i>'.$row->company.'</i> can perform your window installation for <i>$'.ROUND($row->newcost,2).'</i><br>';
echo 'This price includes using <i>'.$row->material.'</i> as your material(s)<br>';
echo '<hr></h5>';
}
}else{echo 'No results found';}
即使有与原始查询发现有两行,只显示如果有什么,但零results..basically它的工作的对面的“没有找到结果”消息我希望如何。
另外$result
是我命名查询的变量。 有人可以给我洞察我可能做错了什么吗?
EDIT我使用的查询是:
$result = $wpdb->get_results("SELECT `b`.`company` AS `company`,`bp`.`material` AS `material`,
if(((`bp`.`cost` * 1.2) < `ls`.`maximumbid`),(ROUND(`bp`.`cost` * 1.2,2)),ROUND(`bp`.`cost`,2)) AS `newcost`
from (((`doors_brands_products` `bp` left join `doors_brands` `b` on((`bp`.`brand_id` = `b`.`id`)))
join `Doors_last_submissions` `ls`) join `doors_materials` `wm`)
where ((`bp`.`width` = round(`ls`.`width`,0))
and (`bp`.`height` = round(`ls`.`height`,0))
and (`bp`.`material` = `wm`.`name`)
and (`bp`.`type` = `ls`.`type`)
and if((`ls`.`minimumbid` <> '0.00'),(`bp`.`cost` between `ls`.`minimumbid` and `ls`.`maximumbid`),(`bp`.`cost` <= `ls`.`maximumbid`)))
ORDER BY b.company ASC");
'的var_dump($行);' –
你能发布您的查询代码? – Saty
我做了编辑与查询 –