我想实现带有多个组选择复选框的下拉列表。有很多选项,因此我使用mysql保存它们。如何从mysql获取数据以用作选项。我想使用php检索数据,并且它们必须是分层树结构。
我使用此示例代码,但是直接输入了选项值。使其如何显示等级形式如下图所示。 这是代码:
<!DOCTYPE html>
<html>
<head>
<script
src="https://ajax.googleapis.com/ajax/libs/jquery/3.1.0/jquery.min.js">
</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-3-
typeahead/4.0.2/bootstrap3-typeahead.min.js"></script>
<link rel="stylesheet"
href="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.6/css/bootstrap.min.css"
/>
<script
src="https://maxcdn.bootstrapcdn.com/bootstrap/3.3.5/js/bootstrap.min.js">
</script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-
multiselect/0.9.13/js/bootstrap-multiselect.js"></script>
<link rel="stylesheet"
href="https://cdnjs.cloudflare.com/ajax/libs/bootstrap-
multiselect/0.9.13/css/bootstrap-multiselect.css" />
</head>
<body>
<div class="container" style="width:400px;">
<form method="post" id="framework_form">
<div class="form-group">
<label>Select which Framework you have knowledge</label>
<select id="framework" name="framework[]" multiple class="form-control">
<option value="Codeigniter">Codeigniter</option>
<option value="CakePHP">CakePHP</option>
<option value="Laravel">Laravel</option>
<option value="YII">YII</option>
<option value="Zend">Zend</option>
<option value="Symfony">Symfony</option>
<option value="Phalcon">Phalcon</option>
<option value="Slim">Slim</option>
</select>
</div>
</form>
<br />
</div>
</body>
</html>
<script>
$(document).ready(function () {
$('#framework').multiselect({
nonSelectedText: 'Thêm khách mời',
enableFiltering: true,
enableCaseInsensitiveFiltering: true,
buttonWidth: '400px'
});
});
</script>