PHP:从广播框中获取值
我正在做一个没有正确答案的测验,取而代之的是比较和计算个性,以创建匹配算法。到目前为止,我已经: 我有3张涉及测验的表格:问题、问题答案、问题选择:PHP:从广播框中获取值,php,post,mysqli,radio,Php,Post,Mysqli,Radio,我正在做一个没有正确答案的测验,取而代之的是比较和计算个性,以创建匹配算法。到目前为止,我已经: 我有3张涉及测验的表格:问题、问题答案、问题选择: questions: +-------------+---------------+ | question_id | question | +-------------+---------------+ | 1 | Is your... | | 2 | Do you.. | | 3
questions:
+-------------+---------------+
| question_id | question |
+-------------+---------------+
| 1 | Is your... |
| 2 | Do you.. |
| 3 | Have you... |
|_____________|_______________|
question_choices:
+-------------+-------------+-------------+
| choice_id | question_id | choice_text |
+-------------+-------------+-------------+
| 1 | 1 | Somewhere.. |
| 2 | 1 | Somewhere.. |
| 3 | 1 | Somewhere.. |
| 4 | 2 | Yes |
| 5 | 2 | No |
| 6 | 3 | Yes |
| 7 | 3 | No |
|_____________|_____________|_____________|
question_answers:
+------------+---------+------------+------------+
| answer_id | user_id |question_id | choice_id |
+------------+---------+------------+------------+
| 1 | 125 | 1 | 2 |
| 2 | 3 | 1 | 3 | --> 125 & 3 = No Match
| 3 | 125 | 2 | 1 |
| 4 | 3 | 2 | 1 | --> 125 & 3 = Match
|____________|_________|____________|____________|
我现在正在努力获取所有相关信息,以便发布到空的问答表中。但是,我在提取所选选项的值时遇到困难,单击“提交”时,所有问题都只显示为最后一个问题(问题3)单击的选项
我该如何针对每个问题进行调整,以及如何使用UPDATE将这三个结果发布到数据库中
<?php
$choices = (choices());
$questions = (questions());
$questions_id = (questions_id());
$questions_length = count(questions());
for ($i = 0; $i < $questions_length; $i++){
$each_q = $questions[$i];
$each_q_id = $questions_id[$i];
?>
<div class="poll">
<div class="poll_question">
<?php echo $each_q_id . ". " . $each_q; ?>
</div>
<form action="" method="post">
<div class="poll_options">
<div class="poll_option">
<?php
$each_c = $choices[$i];
$choices_length = count($each_c);
for ($k = 0; $k < $choices_length; $k++){
$each_c = explode('<br />', $each_c);
?>
<input type="radio" name="$each_c" value="1" id="c1">
<label for="c1"><?php echo $each_c[0]; ?></label>
<input type="radio" name="$each_c" value="2" id="c2">
<label for="c2"><?php echo $each_c[1]; ?></label>
<?php if (!empty($each_c[2]) === true){ ?>
<input type="radio" name="$each_c" value="3" id="c3">
<label for="c2"><?php echo $each_c[2]; ?></label>
<?php
}}
$data = $_POST;
$each_cc = count($each_c);
print_r($session_user_id);
$option = 0;
if(isset($data['$each_c'])){
$option = $data['$each_c'];
echo "--".$each_q_id."--".$each_cc."--". $option. "<br>";
}
?>
</div>
</form>
<?php
}
?>
职能:
function choices(){
$query = mysqli_query($_POST['x'], "SELECT `question`, GROUP_CONCAT(`choice_text` ORDER BY `choice_text` DESC SEPARATOR '<br />') as `choice_texts` FROM `questions` JOIN `question_choices` ON questions.question_id = question_choices.question_id GROUP BY `question`");
while($row = mysqli_fetch_assoc($query)){
$rows[] = $row;}
if (count($rows)>0){
foreach ($rows as $key => $value) {
$c[] = $value['choice_texts'];
}
return $c;}else return false;
}
function questions_id(){
$query = mysqli_query($_POST['x'], "SELECT `question_id` FROM `questions` WHERE DATE(NOW()) BETWEEN `start` AND `end`");
while($row = mysqli_fetch_assoc($query)){
$rows[] = $row;}
if (count($rows)>0){
foreach ($rows as $key => $value) {
$q_id = $value['question_id'];
$array_q[] = ($q_id);
}
return $array_q;}else return false;
}
function questions(){
$query = mysqli_query($_POST['x'], "SELECT `question` FROM `questions` WHERE DATE(NOW()) BETWEEN `start` AND `end`");
while($row = mysqli_fetch_assoc($query)){
$rows[] = $row;}
if (count($rows)>0){
foreach ($rows as $key => $value) {
$q = $value['question'];
$array_q[] = $q;
}
return $array_q;}else return false;
}
函数选择(){
$query=mysqli\u query($\u POST['x'],“选择`问题'”,分组(`choice\u text`按`choice\u text`DESC SEPARATOR'
排序)作为`choice\u text`从`questions`加入`question\u choices`关于问题的提问。`question\u id=question\u choices.question\u id按`question`问题分组');
while($row=mysqli\u fetch\u assoc($query)){
$rows[]=$row;}
如果(计数($rows)>0){
foreach($key=>$value的行){
$c[]=$value['choice_text'];
}
返回$c;}否则返回false;
}
函数问题\u id(){
$query=mysqli\u query($\u POST['x'],“从'questions'中选择'question\u id',其中日期(NOW())介于'start'和'end'之间”;
while($row=mysqli\u fetch\u assoc($query)){
$rows[]=$row;}
如果(计数($rows)>0){
foreach($key=>$value的行){
$q_id=$value['question_id'];
$array_q[]=($q_id);
}
返回$array_q;}否则返回false;
}
函数问题(){
$query=mysqli\u query($\u POST['x'],“从'questions'中选择'question',其中日期(NOW())介于'start'和'end'之间”;
while($row=mysqli\u fetch\u assoc($query)){
$rows[]=$row;}
如果(计数($rows)>0){
foreach($key=>$value的行){
$q=$value['question'];
$array_q[]=$q;
}
返回$array_q;}否则返回false;
}
首先,我认为在您的代码中,您为每个问题创建了不同的形式(即在第一个for循环中)。
在第二个for循环中,您尝试设置单选按钮,但使用的是
未与此循环连接的变量。
我对你的代码做了一点修改,所以当提交时,$\u POST将看起来:$\u POS['1']=>选择值,$\u POST['2']=>选择值。。。
其中“1”、“2”。。。这是你的问题ID
<?php
$choices = (choices());
$questions = (questions());
$questions_id = (questions_id());
$questions_length = count(questions());
echo '<form action="#" method="post">';
for ($i = 0; $i < $questions_length; $i++) {
$each_q = $questions[$i];
$each_q_id = $questions_id[$i];
?>
<div class="poll">
<div class="poll_question">
<?php echo $each_q_id . ". " . $each_q; ?>
</div>
<div class="poll_options">
<div class="poll_option">
<?php
$each_c = $choices[$i];
$question = $questions[$i];
$choices_length = count($each_c);
for ($k = 0; $k < $choices_length; $k++){
$each_c = explode('<br />', $each_c);
?>
<input type="radio" name="<?php echo $each_q_id; ?>" value="<?php echo $choices[$i][$k]; ?>" id="c<?php echo $choices[$i][$k] ?>">
<label for="c<?php echo $choices[$i][$k] ?>"><?php echo $choices[$i][$k]; ?></label>
<?php
}
$data = $_POST;
$each_cc = count($choices[$i]);
print_r($session_user_id);
$option = 0;
if(isset($data[$each_q_id])){
$option = $data[$i];
echo "--" . $each_q_id . "--" . $each_cc . "--" . $option . "<br>";
}
?>
</div>
<?php
}
echo '<input type=submit value="submit" />';
echo '<br /></form><br /><br />';
if (!empty($_POST)) {
var_dump($_POST);
}
?>
(代表OP发布)
通过将代码更改为以下内容,解决了此问题:
<?php
$choices = (choices());
$questions = (questions());
$questions_id = (questions_id());
$questions_length = count(questions());
echo '<form action="#" method="post">';
for ($i = 0; $i < $questions_length; $i++) {
$each_q = $questions[$i];
$each_q_id = $questions_id[$i];
?>
<div class="poll">
<div class="poll_question">
<?php echo $each_q_id . ". " . $each_q; ?>
</div>
<div class="poll_options">
<div class="poll_option">
<?php
$each_c = $choices[$i];
$each_c = explode('<br />', $each_c);
$choices_length = count($each_c);
for ($k = 0; $k < $choices_length; $k++){
?>
<input type="radio" name="<?php echo $each_q_id; ?>" value="<?php echo $each_c[$k]; ?>" id="<?php echo $each_c[$k] ?>">
<label for="<?php echo $each_c[$k] ?>"><?php echo $each_c[$k]; ?></label>
<?php
}
$data = $_POST;
$each_cc = count($choices[$i]);
// print_r($session_user_id);
$option = 0;
if(isset($data[$each_q_id])){
$option = $data[$each_q_id];
echo $session_user_id . "--" . $each_q_id . "--" . $each_cc . "--" . $option . "--" . "<br>";
}
?>
</div>
<?php
}
echo '<input type=submit value="submit" />';
echo '<br /></form><br /><br />';
if (!empty($_POST)) {
var_dump($_POST);
}
?>
谢谢你的回复,你太棒了,到目前为止还不错。。。我只是想让每个问题的所有选项都显示出来,因为现在它只显示每个问题的第一个选项。但这是有效的!(完成后,我将发布更新的代码)。再次感谢你。上面更新了,它正在运行并发布结果:125--1--1--我们可以在某个地方交谈--。。。等等。我将更改选项变量以输出选项的ID。再次感谢你帮了我大忙。你好。感谢您希望将问题标记为已解决,并提供解决方案。但是,我们不会编辑问题来做到这一点:通过用解决方案覆盖问题,问答格式的连续性将丢失,结果不太可能帮助未来的访问者。如果您希望报告您的解决方案,请自行回答。我刚才为你做了这件事。