Question

我有一个html表单，该表单具有一个选择列表框，您可以从中选择来自数据库的多个值。我希望能够同时选择多个值，在此处的示例中，我们可以通过按要在其中用逗号分隔符显示的添加按钮来一次选择多个电子邮件地址，因此当我们通过下拉列表，它将自动显示在输入字段“ To”中，例如：neymar @ gmail.com，ronaldo @ gmail.com，messi @ gmail.com，然后用户还可以通过按删除按钮，当用户选择了一封电子邮件时，为了避免数据冗余，我希望该下拉列表中不再显示已选择的电子邮件。

最后，我希望已选择的每个电子邮件地址都可以发送相同的邮件内容（在MYSQL中插入多个值）。

Answer 1

尝试此代码

    <!DOCTYPE html>
<html lang="en" >

<head>
  <meta charset="UTF-8">
  <title>Dropdown with Multiple checkbox select with jQuery</title>

    <link rel="stylesheet" href="https://cdnjs.cloudflare.com/ajax/libs/meyer-reset/2.0/reset.min.css">


      <style>
      /* NOTE: The styles were added inline because Prefixfree needs access to your styles and they must be inlined if they are on local disk! */
      body {
  font: normal 14px/100% "Andale Mono", AndaleMono, monospace;
  color: #fff;
  padding: 50px;
  width: 300px;
  margin: 0 auto;
  background-color: #374954;
}

.dropdown {
  position: absolute;
  top:50%;
  transform: translateY(-50%);
}

a {
  color: #fff;
}

.dropdown dd,
.dropdown dt {
  margin: 0px;
  padding: 0px;
}

.dropdown ul {
  margin: -1px 0 0 0;
}

.dropdown dd {
  position: relative;
}

.dropdown a,
.dropdown a:visited {
  color: #fff;
  text-decoration: none;
  outline: none;
  font-size: 12px;
}

.dropdown dt a {
  background-color: #4F6877;
  display: block;
  padding: 8px 20px 5px 10px;
  min-height: 25px;
  line-height: 24px;
  overflow: hidden;
  border: 0;
  width: 272px;
}

.dropdown dt a span,
.multiSel span {
  cursor: pointer;
  display: inline-block;
  padding: 0 3px 2px 0;
}

.dropdown dd ul {
  background-color: #4F6877;
  border: 0;
  color: #fff;
  display: none;
  left: 0px;
  padding: 2px 15px 2px 5px;
  position: absolute;
  top: 2px;
  width: 280px;
  list-style: none;
  height: 100px;
  overflow: auto;
}

.dropdown span.value {
  display: none;
}

.dropdown dd ul li a {
  padding: 5px;
  display: block;
}

.dropdown dd ul li a:hover {
  background-color: #fff;
}

button {
  background-color: #6BBE92;
  width: 302px;
  border: 0;
  padding: 10px 0;
  margin: 5px 0;
  text-align: center;
  color: #fff;
  font-weight: bold;
}
    </style>

    <script src="https://cdnjs.cloudflare.com/ajax/libs/prefixfree/1.0.7/prefixfree.min.js"></script>

</head>

<body>

  <dl class="dropdown"> 

    <dt>
    <a href="#">
      <span class="hida">Select</span>    
      <p class="multiSel"></p>  
    </a>
    </dt>

    <dd>
        <div class="mutliSelect">
            <ul>
                <li>
                    <input type="checkbox" value="Apple" />Apple</li>
                <li>
                    <input type="checkbox" value="Blackberry" />Blackberry</li>
                <li>
                    <input type="checkbox" value="HTC" />HTC</li>
                <li>
                    <input type="checkbox" value="Sony Ericson" />Sony Ericson</li>
                <li>
                    <input type="checkbox" value="Motorola" />Motorola</li>
                <li>
                    <input type="checkbox" value="Nokia" />Nokia</li>
            </ul>
        </div>
    </dd>
  <button>Filter</button>
</dl>
  <script src='http://cdnjs.cloudflare.com/ajax/libs/jquery/2.1.3/jquery.min.js'></script>



    <script  src="js/index.js"></script>




</body>

</html>

如何从下拉列表中选择多个项目并将多个值插入MYSQL

1 个答案: