PHP 在单选按钮上显示随机记录 [测验] [英] Php display random records on radio button [quiz]
本文介绍了PHP 在单选按钮上显示随机记录 [测验]的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
我正在做一个简单的 php 问答游戏.我有问题和答案存储在数据库中.我的tblQuiz的表结构是这样的:
I'm doing a simple php quiz game. I have the questions and answers stored in the database. The table structure of my tblQuiz is like this:
_id, question, answer1, answer2, answer3, correctanswer.
我必须在页面上随机显示它们.
I have to randomly display them on the page.
这是我迄今为止尝试过的:
This is what I've tried so far:
<!DOCTYPE html>
<html>
<head>
<title>Sample Quiz</title>
<?php
include 'db.php';
$stmt = $conn->prepare( "SELECT *
FROM tblquiz ORDER BY rand()" );
$stmt->execute();
?>
</head>
<body>
<?php
$number = 0;
for($i=0; $row = $stmt->fetch(); $i++){
$number++;
$id = $row['_id'];
$question = $row['question'];
$answer1 = $row['answer1'];
$answer2 = $row['answer2'];
$answer3 = $row['answer3'];
$correctanswer = $row['correctanswer'];
?>
<h4> <?php echo $number . ".) " . $question; ?></h4>
<label><input type="radio" value="<?php echo $answer1; ?>" name="<?php echo $question; ?>"> <?php echo $answer1; ?></label>
<label><input type="radio" value="<?php echo $answer2; ?>" name="<?php echo $question; ?>"> <?php echo $answer2; ?></label>
<label><input type="radio" value="<?php echo $answer3; ?>" name="<?php echo $question; ?>"> <?php echo $answer3; ?></label>
<label><input type="radio" value="<?php echo $correctanswer; ?>" name="<?php echo $question; ?>"> <?php echo $correctanswer; ?></label>
<?php
}
?>
<br />
<br />
<input type="submit" value="Submit" name="submit">
</body>
</html>
但我似乎无法得到我想要达到的目标，只是随机显示了问题.我也想自己随机定位答案.
But I can't seem to get what I want to achieve, only the questions are being randomly displayed. I also want to randomly position the answers themselves.
我是 PHP 新手，所以我需要你的帮助.非常感谢那些愿意提供帮助的人.
Im newbie in PHP so I need your help. Thanks a lot in advance to those who will help.
推荐答案
试试这个:
<body>
<?php
$number = 0;
for($i=0; $row = $stmt->fetch(); $i++){
$number++;
$id = $row['_id'];
$question = $row['question'];
$ans_array = array($row['answer1'],$row['answer2'],$row['answer3'],$row['correctanswer']);
shuffle($ans_array);
?>
<h4> <?php echo $number . ".) " . $question; ?></h4>
<label><input type="radio" value="<?php echo $ans_array[0]; ?>" name="<?php echo $question; ?>"> <?php echo $ans_array[0]; ?></label>
<label><input type="radio" value="<?php echo $ans_array[1]; ?>" name="<?php echo $question; ?>"> <?php echo $ans_array[1]; ?></label>
<label><input type="radio" value="<?php echo $ans_array[2]; ?>" name="<?php echo $question; ?>"> <?php echo $ans_array[2]; ?></label>
<label><input type="radio" value="<?php echo $ans_array[3]; ?>" name="<?php echo $question; ?>"> <?php echo $ans_array[3]; ?></label>
<?php
}
?>
<br />
<br />
<input type="submit" value="Submit" name="submit">
</body>
这篇关于PHP 在单选按钮上显示随机记录 [测验]的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！
查看全文
