Question

我遇到了问题，我在页面上添加了一个下拉列表，只是post方法不起作用。

这是一个测试页面：见到你。

<?php 
$values=$_POST['list'];
if($_SERVER['REQUEST_METHOD']=='POST')
{
   if(isset($_POST['submit']))
   {
       $i="<span style='font-color:red;font-weight:bold'>";$s="</span>";
       echo $i;
       echo $options[$value];
       echo $values;
       echo $s;
   }
}
?>
<center><h2>This is a page to test the drop down</h2>
<form method='post'>
<select id="demo-htmlselect-basic"name="list">
  <option value="0">Select</option>
  <option value="1">Part 1</option>
  <option value="2">Part 2</option>
  <option value="3">Part 3</option>
</select><br/><br/>
<input type="submit"name="submit"id="submit"value="Submit"/>
</form>
</center>

<script type="text/javascript"src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script type="text/javascript"src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/jquery-ui.min.js"></script>
<script type="text/javascript"src="//healtend.it/uploads/script.js"></script>
<script type="text/javascript"src="//healtend.it/uploads/jquery.ddslicksd.min.js"></script>

等待你的帮助。

感谢。

Answer 1

你错过了写“;”在一个回声的最后一个。

echo $ s;

if(isset($_POST['submit']))
{ 
   $i="<span style='font-color:red;font-weight:bold'>";$s="</span>";
   echo $i;
   echo $options[$value];
   echo $values;
   echo $s;
}

Answer 2

您的name="list"文件中缺少jquery.ddslicksd.min.js，请修改您的代码

http://healtend.it/uploads/jquery.ddslicksd.min.js

添加

name="list"到<input class="dd-selected-value" type="hidden" />行。

对于php + HTML代码，如下所示：

PHP：

if(isset($_POST['submit'])){
        $values = $_POST['list'];
        $i="<span style='font-color:red;font-weight:bold'>";
        $s="</span>";
        echo $i;
        echo $values;
        echo $s;

    }

HTML：

<script type="text/javascript"src="https://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js"></script>
<script type="text/javascript"src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.8.18/jquery-ui.min.js"></script>


    <center>
            <h2>This is a page to test the drop down</h2>
            <form method='POST' action="" id="dropdown">
                <select id="demo-htmlselect-basic" name="list">
                    <option value="0">Select</option>
                    <option value="1">Part 1</option>
                    <option value="2">Part 2</option>
                    <option value="3">Part 3</option>
                </select>
                <br/><br/>
                <input type="submit"name="submit" id="submit"value="Submit"/>
            </form>
    </center>


<script type="text/javascript"src="//healtend.it/uploads/script.js"></script>
<script type="text/javascript"src="//healtend.it/uploads/jquery.ddslicksd.min.js"></script>

下拉jquery方法后表单不起作用

2 个答案: