投票オプションを追加する
ここでは、追加されたすべての投票質問をクエリして表示する必要があります:
<?php
<select style="width:300px;" name="subject">
<option value="" checked>请选择问题</option>
<?php
$result = $db->query("select * from votename");
while($row = mysqli_fetch_assoc($result)){
?>
<option value="<?php echo $row['cid']; ?>"><?php echo $row['question_name']; ?></option>
<?php
}
?>
</select>すべてのコード:
<?php
include('../conn.php');
if(isset($_POST['voteoption'])?$_POST['voteoption']:''){
$voteoption = $_POST['voteoption'];
$subject = $_POST['subject'];
if($subject == ""){
echo "<script>onload = function(){document.getElementById('errortext').innerHTML='请选择问题！';}</script>";
}else{
$result = $db->query("insert into voteoption (optionname, upid, votenum) values ('$voteoption', '$subject', '0')");
if($result){
echo "<script>onload = function(){document.getElementById('errortext').innerHTML='添加选项成功';}</script>";
}else{
echo "<script>onload = function(){document.getElementById('errortext').innerHTML='添加选项失败';}</script>";
}
}
}
?>
<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<script type="text/javascript" src="js/jquery.min.js"></script>
<link rel="stylesheet" href="css/add.css" type="text/css" media="screen" />
<link rel="stylesheet" href="utilLib/bootstrap.min.css" type="text/css" media="screen" />
</head>
<body>
<div class="div_from_aoto" style="width: 500px; margin:30px 40px;">
<FORM action="Addvoteoption.php" method="post" enctype="multipart/form-data" name="form1" id="form1">
<div id="result111" class="result111" style="width:300px; height:20px; margin:4px auto; color:#33FF99; ">
<h5 id="errortext"></h5>
</div>
<DIV class="control-group">
<label class="laber_from">投票选项</label>
<DIV class="controls" ><INPUT class="username" style="width:300px;" name="voteoption" type=text placeholder=" 请输入投票选项"><P class=help-block>不要超过20个字</P></DIV>
</DIV>
<DIV class="control-group">
<label class="laber_from">所属问题</label>
<DIV class="controls" ><select style="width:300px;" name="subject">
<option value="" checked>请选择问题</option>
<?php
$result = $db->query("select * from votename");
while($row = mysqli_fetch_assoc($result)){
?>
<option value="<?php echo $row['cid']; ?>"><?php echo $row['question_name']; ?></option>
<?php
}
?>
</select>
<P class=help-block></P></DIV>
</DIV>
<DIV class="control-group">
<LABEL class="laber_from" ></LABEL>
<DIV class="controls" ><button class="btn btn-success" style="width:120px;" >添加选项</button></DIV>
</DIV>
</FORM>
</div>
</body>
</html>結果を表示:
![フロントエンドプロジェクト-Shangyou [HTML/CSS/JS技術総合演習]](https://img.php.cn/upload/course/000/000/068/63bfcb2974f91471.jpg)
