将HTML代码放在php循环之间

Question

我在php中有一个while循环，想在两者之间放置单选按钮。 像这样：

     <?
     $sql = "SELECT * FROM questions WHERE `type` IN 
    ('".implode("','",$fin_element)."')";

    $result = $conn->query($sql);
    echo "check 1";
if ($result->num_rows > 0) {
// output data of each row

while($row = $result->fetch_assoc()) {
    echo "check 3";
    echo "Q:" . $row["question_name"]. "<br>";
    <UL>
        <INPUT TYPE="RADIO" NAME="question1" VALUE="answer1.1">
            <?php  
                echo "am i visible?";
                $result = $conn->query($sql);
                echo "id: " .$result->fetch_assoc()["answer1"]. "<br>";
            ?><BR>
        <INPUT TYPE="RADIO" NAME="question1" VALUE="answer1.2">
            <?php  
                $result = $conn->query($sql);
                echo "id: " .$result->fetch_assoc()["answer2"]. "<br>";
            ?><BR>
        <INPUT TYPE="RADIO" NAME="question1" VALUE="answer1.3">
            <?php  
                $result = $conn->query($sql);
                echo "id: " .$result->fetch_assoc()["answer3"]. "<br>";
            ?><BR>
        <INPUT TYPE="RADIO" NAME="question1" VALUE="answer1.4  ">
           <?php  
                $result = $conn->query($sql);
                echo "id: " .$result->fetch_assoc()["answer4"]. "<br>";
           ?><BR></UL>
      }
    } else {
           echo "0 results";
           }

   ?>

但是这里的代码来自

    <UL> to </UL> 

不起作用

实际上，我正在做一个从数据库中获取问题和答案的测验问题，这里fin_element分别由ID列表组成，以分别提取问题，因此一次应提取具有答案的多个问题。 请帮忙。

Answer 1

您可以在while循环大括号后结束php标签

    <?
         $sql = "SELECT * FROM questions WHERE `type` IN 
        ('".implode("','",$fin_element)."')";

        $result = $conn->query($sql);
        echo "check 1";
    if ($result->num_rows > 0) {
    // output data of each row

    while($row = $result->fetch_assoc()) {
?>

并在while循环结束之前创建php标签

   <?php  
       }
} else {
       echo "0 results";
       }

Answer 2

您必须生成无线电代码。

像下面的代码

$count = 1;
while($row = $result->fetch_assoc()) {
    echo "Q:" . $row["question_name"]. "<br><UL><li><INPUT TYPE='RADIO' NAME='question".$count."' VALUE='answer".$count.".1'>"."id: " .$row["answer1"]. "</li><li><INPUT TYPE='RADIO' NAME='question".$count."' VALUE='answer".$count.".2'>"."id: " .$row["answer2"]. "</li><li><INPUT TYPE='RADIO' NAME='question".$count."' VALUE='answer".$count.".3'>"."id: " .$row["answer3"]. "</li><li><INPUT TYPE='RADIO' NAME='question".$count."' VALUE='answer".$count.".4'>"."id: " .$row["answer4"]. "</li></UL>"
$count = $count+1;
}

Answer 3

我不了解您的概念，因为我的声誉不高，所以不予评论，但是您在此处写的那行

<UL> to </UL>  does not work

实际上，这是行不通的，因为您不能只在<ul>包装任何元素

你唯一能做的就是

<?php
echo '<UL><LI><INPUT TYPE="RADIO" NAME="question1" VALUE="answer1.1">';
//another php code goes here
echo '</LI></UL>';
?>

您还可以做的是：

<?php
echo '<ul>';
while()
{
 //your loop goes here
  echo '<li>';
  //your code
  echo '</li>';

  echo '<li>';
  //your code
  echo '</li>';
}
echo '<ul>';