Question

我有这个代码来搜索数据库。它现在完美无缺，但我想改变它显示的顺序。以下是我的代码。

if (isset($_GET["mainSearch"])) 
{
  $condition = '';
  $query = explode(" ", $_GET["mainSearch"]);

  foreach ($query as $text) 
  {
      $condition .= "question LIKE '%".SQLite3::escapeString($text)."%' OR ";
  }
  $condition = substr($condition, 0, -4);


  $order = "ORDER BY quiz_id DESC";
  $sql_query = "SELECT * FROM questions WHERE " . $condition;
  $sql_query_count = "SELECT COUNT(*) as count FROM questions WHERE " . $condition . $order;
  $result = $db->query($sql_query);
  $resultCount = $db->querySingle($sql_query_count);

  if ($resultCount > 0)
  {
  if ($result)
  {
      while ($row = $result->fetchArray(SQLITE3_ASSOC))
      {
           echo '<div class="quesbox_3">
            <div class="questitle">
                <h2>'.$row["question"].'</h2>
            </div>
            <div class="quesanswer">'.$row["answer"].'</div>
        </div>';
      }
  }
  }
  else
  {
      echo "No results found";
  }
}

我希望结果显示的ORDER从下到上。请问如何正确添加此功能，因为当前代码无效。

Answer 1

您将订单放在count（）查询上，这实际上没什么用。

$sql_query = "SELECT * FROM questions WHERE " . $condition;
  $sql_query_count = "SELECT COUNT(*) as count FROM questions WHERE " . $condition . $order;

尝试

$sql_query = "SELECT * FROM questions WHERE " . $condition. ' '. $order;
  $sql_query_count = "SELECT COUNT(*) as count FROM questions WHERE " . $condition ;

Answer 2

在此字符串中添加1个空格

$order = " ORDER BY quiz_id DESC ";

它没有显示你，因为如果你回显你的查询而不是像这样显示

SELECT COUNT(*) as count FROM questions WHERE question LIKE '%test%'ORDER BY quiz_id DESC

您可以在此回显查询中看到ORDER and %test%

之间没有空格

这样做会对你有帮助。

Answer 3

查询空间问题。你可以尝试这个查询

 $sql_query_count = "SELECT COUNT(*) as count FROM questions WHERE " . $condition .' '. $order;

Answer 4

您的$order仅在您的计数查询中。添加到您的$sql_query

$sql_query = "SELECT * FROM questions WHERE " . $condition . ' '. $order;

PHP搜索查询结果ORDER BY无法正常工作

4 个答案: