0

这是我到目前为止所得到的-

$awards_sql_1 = mysql_query('SELECT * FROM categories WHERE section_id = 1') or die(mysql_error());
$awards_sql_2 = mysql_query('SELECT * FROM categories WHERE section_id = 2') or die(mysql_error());
$awards_sql_3 = mysql_query('SELECT * FROM categories WHERE section_id = 3') or die(mysql_error());
$awards_sql_4 = mysql_query('SELECT * FROM categories WHERE section_id = 4') or die(mysql_error());

$loop = 1;

while($row_sections = mysql_fetch_array($sections_query)) {
    $category = 1;
    echo "<h3>" . $row_sections['section_name'] . " (Loop# $loop)</h3>";

    while($categories = mysql_fetch_array(${"awards_sql_{$loop}"})) {
        ${"winners_sql_{$loop}"} = mysql_query("SELECT * FROM 2009_RKR_bestof WHERE section = $loop && category = $category ORDER BY result_level ASC") or die(mysql_error());
        echo "<h4><strong>{$categories['category_name']}</strong></h4>";
        echo "<ul class=\"winners\">";
>>          while($winners = mysql_fetch_array(${"winners_sql_{$loop}"})) {
                switch ($winners['result_level']) {
                    case 1: $result_level = "Platinum"; break;
                    case 2: $result_level = "Gold"; break;
                    case 3: $result_level = "Silver"; break;
                }
                if (isset($winners['url'])) { $anchor = "<a href=\"http://{$winners['url']}\" target=\"_blank\">"; $close = "</a>"; }
                echo "<li>$anchor{$winners['winner']}$close ($result_level)</li>";

                unset($anchor);
                unset($close);
            }
        echo "</ul>";
        $category++;
    }
    $loop++;
}

我被难住的地方,是我让这个东西正确循环,我的循环计数器($loop)正在工作,但是当它有时间在第一次循环通过获胜者之后吐出实际的奖励接受者时,它只是生成类别标题时,列表项不会循环播放。

我添加了一个小指针,指出我认为问题开始或围绕 (>>) 的中心。

我的猜测是我可能需要在某处取消设置 var,但我不知道,我看不到它。

4

2 回答 2

3

我和 KM 在一起——你正在显示一个页面,并且你的循环,你有很多查询同时发生——如果 1,000 人同时访问该页面怎么办?哎哟...

也许考虑一个更大的查询(有一些重复的数据)并循环一次?

例如:

SELECT 
  section_name, 
  category_name,
  result_level,
  url,
  winner
FROM 2009_RKR_bestof
INNER JOIN categories ON 2009_RKR_bestof.category = categories.id
INNER JOIN sections ON 2009_RKR_bestof.section = sections.id
ORDER BY section_name,category_name ASC

在您的循环中,您可以进行检查以确定您是否在新部分(类别/其他):

//pseudo-code
$current_section = "";
while($stuff = mysql_fetch_array($sql))
{
  if ($current_section == "")
  {
    $current_section = $stuff["section_name"];
  }
  if ($current_section == $stuff["section_name"])
  {
    //keep going in your loop
  }
  else
  {
    //we've gotten to a new section - so close your html and start a new section
  }
}

你明白了..

于 2009-07-31T19:11:35.157 回答
0

我的猜测是这是一个数据问题。阅读标题没有问题,只有获胜者。如果它迭代一次,我会检查数据,并确保winners_sql_2 - winnders_sql_4 获得实际数据。或许添加一个 echo Winners_sql_2 行,以输出查询的内容,并确保查询的框架正确。

于 2009-07-31T18:52:08.550 回答