Question

这是我对计数值及其计数的查询

echo $getq2 = "SELECT publisher,COUNT(publisher) from (select publisher from wiley where $getq2_ UNION ALL SELECT publisher FROM elsevier WHERE $getq2_ UNION ALL SELECT publisher FROM sage WHERE $getq2_  UNION ALL SELECT publisher FROM indianjournal WHERE $getq2_) as publisher Group by publisher order by publisher";

$getquery1 = $conn->query($getq2); 
after the query fetching through

while($runrows =mysqli_fetch_object($getquery1))
   {
      print_r($getquery1);

      echo $pub=$runrows->publisher;
      //getting the publisher list
      echo $count=$runrows->count['publisher'];
      //not grtting the publisher count
 }

我找到了出版商，但不是伯爵。我该如何计算？结果是正确的

Answer 1

将查询更改为这样。

echo $getq2 = "SELECT publisher,COUNT(publisher) as publisherCount from (select publisher from wiley where $getq2_ UNION ALL SELECT publisher FROM elsevier WHERE $getq2_ UNION ALL SELECT publisher FROM sage WHERE $getq2_  UNION ALL SELECT publisher FROM indianjournal WHERE $getq2_) as publisher Group by publisher order by publisher";

并使用echo $pub=$runrows->publisherCount获取发布商数量

Answer 2

echo $ getq2 =“SELECT发布者，COUNT（发布者）as pub from（从wiley选择发布者，其中$ getq2_ UNION ALL SELECT发布者FROM elsevier WHERE $ getq2_ UNION ALL SELECT发布者FROM sage WHERE $ getq2_ UNION ALL SELECT发布者FROM indianjournal WHERE $ getq2_）作为发布者组按出版商的出版商订单“; 查询shuld是这样的 echo $ pub = $ runrows-＆gt; pub

没有计数从这个查询通过mysqli_fetch_object

2 个答案: