Question

我有以下代码：

我不想计算特定线程/查找的答案数量。比如，有多少人回复此查询。

function lookup()
{
    $sql = "SELECT * FROM lookup
            INNER JOIN lookupCategories
            ON lookup.FK_lookupCategory=lookupCategories.lookupCategoriesId
            INNER JOIN lookupType
            ON lookup.FK_lookupType=lookupType.lookupTypeId
            LEFT JOIN authentication
            ON lookup.FK_lookupUserId=authentication.userId
            LEFT JOIN freelanceTypes
            ON lookup.FK_freelanceTypes=freelanceTypes.freelanceTypesId
            LEFT JOIN lookupAnswer
            ON lookup.lookupId=lookupAnswer.FK_lookupId
            ORDER BY lookupId DESC
            LIMIT 5";
    $result = mysql_query($sql)or die(mysql_error());

    $viewLookup = Array();

    while($row=mysql_fetch_assoc($result)):

        $viewLookup[$row['lookupId']]['lookupId'] = $row['lookupId'];
        $viewLookup[$row['lookupId']]['lookupHeader'] = $row['lookupHeader'];
        $viewLookup[$row['lookupId']]['lookupSubHeader'] = $row['lookupSubHeader'];
        $viewLookup[$row['lookupId']]['lookupContent'] = $row['lookupContent'];
        $viewLookup[$row['lookupId']]['lookupDate'] = $row['lookupDate'];
        $viewLookup[$row['lookupId']]['lookupCategory'] = $row['lookupCategoryName'];
        $viewLookup[$row['lookupId']]['lookupType'] = $row['lookupTypeName'];
        $viewLookup[$row['lookupId']]['lookupByUsername'] = $row['username'];
        $viewLookup[$row['lookupId']]['lookupByUserId'] = $row['userId'];
        $viewLookup[$row['lookupId']]['lookupFreelanceTypeId'] = $row['FK_freelanceTypes'];
        $viewLookup[$row['lookupId']]['freelanceWinner'] = $row['freelanceWinner'];

    endwhile;
    return $viewLookup;
}

我不想算一个帖子'答案'的数量。我的线程加入了查找。然后如你所见存储在一个数组中。

我如何计算答案，并将数字与其余数据一起存储在数组中？我试过这样做，但无法弄清楚出了什么问题。它只是返回，如果有或没有 - 1或NULL。

$viewLookup[$row['lookupId']]['countAnswers'] = count($row['lookupAnswerId']);

提前致谢:)

Answer 1

$sql = select count(*)....

休息添加条件。

PHP - 计算连接的行数

1 个答案: