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我有两个填充关联数组的while循环——我可以一次运行一个（即注释另一个）但是，当我同时运行这两个循环时，我收到一个服务器错误。尽管查询没有查询同一组数据，但我仍然尝试添加指针重置但没有运气。这是两个循环：

$thecurrent = array();
$getusers = "SELECT score, uid, like_id FROM wetique_scores GROUP BY like_id;";
$gotusers = mysql_query($getusers,$con);


while ($row = mysql_fetch_array($gotusers))
{
    $score = $row['score'];
    $userid = $row['uid'];
    $likeid = $row['like_id'];
    $comboid = $userid.$likeid;
    $thecurrent[$comboid] = $score;
}

// 2. 从 db 计算新分数并创建数组 $new

$new = array();
$getusers2 = "SELECT like_id, sum(friend_rating), uid from likes l, friendships f WHERE l.friend_id = f.friend_id GROUP BY l.like_id;";
$gotusers2 = mysql_query($getusers2,$con);
while ($rowb = mysql_fetch_array($gotusers2))
{
    $scoreb = $rowb['sum(friend_rating)'];
    $useridb = $rowb['uid'];
    $likeidb = $rowb['like_id'];
    $comboidb = $useridb.$likeidb;
    $new[$comboidb] = $scoreb;   
}
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1 回答 1

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'l_id'1）您查询的选定字段中没有，因此$rowb['l_id']或$row['l_id']将生成通知。

2）from l, fips f我希望这是错字吗？

3）你GROUP BY l_id的不清楚。所有相同的行l_id都有相同的score, uid, like_id？很奇怪。

4)mysql_free_result每次循环后使用http://ru2.php.net/manual/en/function.mysql-free-result.php

于 2011-05-04T08:16:14.510 回答