我使用php在phpmyAdmin中将问题保存到同一行。
我期待测验成绩将保存到帐户数据库中的结果，因为根据每个帐户登录结果的不同帐户似乎会有所不同。
因为我创建了一个能够在phpmyadmin中存储用户信息的注册页面，所以我想将结果保存在同一行。
我会在下面附上图片和我的代码，以便更具体。 谢谢。
<?php
$con = mysqli_connect('127.0.0.1', 'root', '');
if(!$con)
{
echo 'Not connected to server';
}
if (!mysqli_select_db($con, 'accounts'))
{
echo 'Database not selected';
}
$answer1 = $_POST['question-1-answers'];
$answer2 = $_POST['question-2-answers'];
$answer3 = $_POST['question-3-answers'];
$answer4 = $_POST['question-4-answers'];
$answer5 = $_POST['question-5-answers'];
$totalCorrect = 0;
if ($answer1 == "B") { $totalCorrect++; }
if ($answer2 == "A") { $totalCorrect++; }
if ($answer3 == "C") { $totalCorrect++; }
if ($answer4 == "D") { $totalCorrect++; }
if ($answer5) { $totalCorrect++; }
if ($totalCorrect < 3) {
$grade = "failed";
} else {
$grade = "pass";
}
$sql = "INSERT INTO users (grade) VALUES ('$grade')";
if(!mysqli_query($con, $sql))
{
echo 'Not inserted';
}
else {
echo 'Inserted';
}
echo "<div id='results'>$totalCorrect / 5 correct</div>";
echo "<div id='results'>You have $grade the assesment </div>";
?>
<form action="grade.php" method="post" id="quiz">
<ol>
<li>
<h3>CSS Stands for...</h3>
<div>
<input type="radio" name="question-1-answers" id="question-1-answers-A" value="A" />
<label for="question-1-answers-A">A) Computer Styled Sections </label>
</div>
<div>
<input type="radio" name="question-1-answers" id="question-1-answers-B" value="B" />
<label for="question-1-answers-B">B) Cascading Style Sheets</label>
</div>
<div>
<input type="radio" name="question-1-answers" id="question-1-answers-C" value="C" />
<label for="question-1-answers-C">C) Crazy Solid Shapes</label>
</div>
<div>
<input type="radio" name="question-1-answers" id="question-1-answers-D" value="D" />
<label for="question-1-answers-D">D) None of the above</label>
</div>
</li>
<li>
<h3>Internet Explorer 6 was released in...</h3>
<div>
<input type="radio" name="question-2-answers" id="question-2-answers-A" value="A" />
<label for="question-2-answers-A">A) 2001</label>
</div>
<div>
<input type="radio" name="question-2-answers" id="question-2-answers-B" value="B" />
<label for="question-2-answers-B">B) 1998</label>
</div>
<div>
<input type="radio" name="question-2-answers" id="question-2-answers-C" value="C" />
<label for="question-2-answers-C">C) 2006</label>
</div>
<div>
<input type="radio" name="question-2-answers" id="question-2-answers-D" value="D" />
<label for="question-2-answers-D">D) 2003</label>
</div>
</li>
<li>
<h3>SEO Stand for...</h3>
<div>
<input type="radio" name="question-3-answers" id="question-3-answers-A" value="A" />
<label for="question-3-answers-A">A) Secret Enterprise Organizations</label>
</div>
<div>
<input type="radio" name="question-3-answers" id="question-3-answers-B" value="B" />
<label for="question-3-answers-B">B) Special Endowment Opportunity</label>
</div>
<div>
<input type="radio" name="question-3-answers" id="question-3-answers-C" value="C" />
<label for="question-3-answers-C">C) Search Engine Optimization</label>
</div>
<div>
<input type="radio" name="question-3-answers" id="question-3-answers-D" value="D" />
<label for="question-3-answers-D">D) Seals End Olives</label>
</div>
</li>
<li>
<h3>A 404 Error...</h3>
<div>
<input type="radio" name="question-4-answers" id="question-4-answers-A" value="A" />
<label for="question-4-answers-A">A) is an HTTP Status Code meaning Page Not Found</label>
</div>
<div>
<input type="radio" name="question-4-answers" id="question-4-answers-B" value="B" />
<label for="question-4-answers-B">B) is a good excuse for a clever design</label>
</div>
<div>
<input type="radio" name="question-4-answers" id="question-4-answers-C" value="C" />
<label for="question-4-answers-C">C) should be monitored for in web analytics</label>
</div>
<div>
<input type="radio" name="question-4-answers" id="question-4-answers-D" value="D" />
<label for="question-4-answers-D">D) All of the above</label>
</div>
</li>
<li>
<h3>Your favorite website is</h3>
<div>
<input type="radio" name="question-5-answers" id="question-5-answers-A" value="A" />
<label for="question-5-answers-A">A) CSS-Tricks</label>
</div>
<div>
<input type="radio" name="question-5-answers" id="question-5-answers-B" value="B" />
<label for="question-5-answers-B">B) CSS-Tricks</label>
</div>
<div>
<input type="radio" name="question-5-answers" id="question-5-answers-C" value="C" />
<label for="question-5-answers-C">C) CSS-Tricks</label>
</div>
<div>
<input type="radio" name="question-5-answers" id="question-5-answers-D" value="D" />
<label for="question-5-answers-D">D) CSS-Tricks</label>
</div>
</li>
</ol>
<input type="submit" value="Submit Quiz" />
</form>
</div>
答案 0 :(得分：0)
您正在寻找的是MySQL中的update语句。
假设您的表中有一个主键user_id：
UPDATE users SET grade = '{$grade}' WHERE user_id = {$userId}
答案 1 :(得分：0)
Insert查询将在表格中插入new行。但您需要更新现有行grade的{{1}}列。因此您需要使用(i.e existing user)代替where clause
insert
注意：
第一：尝试使用UPDATE users SET grade = '{$grade}' WHERE user_id = {$user_Id} prepared来避免statement sql。
第二次：injection当前已登录用户ID
