下面的代码显示从数据库检索到的问题：
$qandaquery = "SELECT q.QuestionId, q.QuestionNo, q.QuestionContent
FROM Question q
WHERE SessionId = ?
GROUP BY q.QuestionId
ORDER BY q.QuestionId";
$qandaqrystmt=$mysqli->prepare($qandaquery);
// You only need to call bind_param once
$qandaqrystmt->bind_param("i",$session);
// get result and assign variables (prefix with db)
$qandaqrystmt->execute();
$qandaqrystmt->bind_result($qandaQuestionId,$qandaQuestionNo,$qandaQuestionContent);
$arrQuestionId = array();
$arrQuestionNo = array();
$arrQuestionContent = array();
while ($qandaqrystmt->fetch()) {
$arrQuestionId[ $qandaQuestionId ] = $qandaQuestionId;
$arrQuestionNo[ $qandaQuestionId ] = $qandaQuestionNo;
$arrQuestionContent[ $qandaQuestionId ] = $qandaQuestionContent;
}
$qandaqrystmt->close();
foreach ($arrQuestionId as $key=>$question) {
?>
<div class='lt-container'>
<p><strong>QUESTION <span id="quesnum"></span>:</strong></p>
<p><?php echo htmlspecialchars($arrQuestionNo[$key]) . ": " . htmlspecialchars($arrQuestionContent[$key]); ?></p>
</div>
<?php
}
?>
现在它说QUESTION:在哪里
<p><strong>QUESTION # <?php echo $q; ?> :</strong></p>
<?php
$q++;
?>
我希望它保持不变
但它显示问题细节的地方：
<p><?php echo htmlspecialchars($arrQuestionNo[$key]) . ": " . htmlspecialchars($arrQuestionContent[$key]); ?></p>
我希望它按随机顺序显示问题。例如，如果我有以下3个问题：
QUESTION 1:
1. What is 2+2?
QUESTION 2:
2. What is 3+3?
QUESTION 3:
3. What is 4+4?
它可以按以下顺序显示，例如：
QUESTION 1:
2. What is 3+3?
QUESTION 2:
3. What is 4+4?
QUESTION 3:
1. What is 2+2?
使用ORDER BY RAND() 而不是ORDER BY q.QuestionId
shuffle()函数会随机化数组中元素的顺序。阅读更多
示例
<?php
$my_array = array("a" => "Dog", "b" => "Cat", "c" => "Horse");
shuffle($my_array);
print_r($my_array);
?>
rray ( [0] => Cat [1] => Horse [2] => Dog )
mysql rand（）函数怎么样，例如
$qandaquery = "SELECT rand() as pos, q.QuestionId, q.QuestionNo, q.QuestionContent
FROM Question q
WHERE SessionId = ?
GROUP BY q.QuestionId
order by pos";