Question

$host = 'localhost';
$user = 'root';
$pw = '';
$db = 'pmdb';

mysql_connect($host,$user,$pw); 
mysql_select_db($db);

$result = mysql_query("SELECT * FROM Questions WHERE QuizID=1");
$num_rows = mysql_num_rows($result);
while($row = mysql_fetch_assoc($result))
{
    $array[] = $row;
}
for($i=0; $i<=($num_rows-1); $i++)
{
  $title = $array[$i]['Title'];
  $ans1 = $array[$i]['Answer1'];
  $ans2 = $array[$i]['Answer2'];
  $ans3 = $array[$i]['Answer3'];
  $ans4 = $array[$i]['Answer4'];
  echo $title.'<br>';
  echo '<form method="post">';
  echo '<input type="radio" name="ans'.$i.'">'.$ans1.'<br>';
  echo '<input type="radio" name="ans'.$i.'">'.$ans2.'<br>';
  echo '<input type="radio" name="ans'.$i.'">'.$ans3.'<br>';
  echo '<input type="radio" name="ans'.$i.'">'.$ans4.'<br>';
 }
echo '<input type="submit" value="submit" id="submit">';
echo '</form>';

我设法显示问题后跟相应的选项，并在底部显示提交按钮。

如果单击“提交”按钮，我将如何获取用户为从数据库中循环出的每个问题选择的值？ ans1，ans2等

这是比较他们对答案键的答案并计算他们的分数所必需的。

请帮忙！非常感谢你，更有力量！

Answer 1

为每个无线电输入分配一个值，更新的脚本可以是：

$host = 'localhost';
$user = 'root';
$pw = '';
$db = 'pmdb';

mysql_connect($host,$user,$pw); 
mysql_select_db($db);

$result = mysql_query("SELECT * FROM Questions WHERE QuizID=1");
$num_rows = mysql_num_rows($result);
while($row = mysql_fetch_assoc($result))
{
    $array[] = $row;
}

//Start the form
echo "<form method=\"post\" action=\"path/to/receiving.php\">\n";

for($i=0; $i<=($num_rows-1); $i++)
{
  //Render a question + the answer choices
  echo $array[$i]['Title']."<br />\n";
  for ($j=1;$j<=4;$j++) {
    echo "<input type=\"radio\" name=\"ans$i\" value=\"$j\">".
      $array[$i]['Answer'.$j]."<br />\n";
  }
}

//End the form
echo "<input type=\"submit\" value=\"submit\" id=\"submit\">\n</form>";

现在从PHP中读取答案的值：

  echo $_POST["ans1"]; 
  //The answer given for question 1, will be between 
  //  1-4 or null (if they didn't answer

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