我正在创建一个调查应用程序，该应用程序会动态添加一个下拉框和两个文本框。从下拉菜单中选择一个选项后，它将填充所选选项。不幸的是，第一个选项有效，但对于其他选项，它只是填充我在第一个中选择的数据。总体目标是使用php将其输入数据库中。这是我的php脚本
<?php
$connect = mysqli_connect("localhost", "root", "", "test");
$number = count($_POST["name"]);
$crops = count($_POST["selectedCrop"]);
// echo $number;
// echo $crop;
if ($number > 0) {
for ($i=0; $i<$number; $i++) {
if (trim($_POST["name"][$i] != '')) {
$sql = "INSERT INTO tbl_name(name,crop) VALUES('".mysqli_real_escape_string($connect, $_POST["selectedCrop"][$i])."' ,'".mysqli_real_escape_string($connect, $_POST["name"][$i])."')";
mysqli_query($connect, $sql);
}
}
echo "Data Inserted";
} else {
echo "Please Enter Name";
}
结果如下The Image with the duplicated resukts
这是我用来实现的HTML代码和Javascript
<body>
<div class="container">
<div class="page-header">
<h1 class="text-center">SURVEY</h1>
</div>
<div class="container">
<div class="col-md-2">
</div>
<div class="col-md-8">
<div class="panel panel-default">
<div class="panel-heading">
<strong>E. FARMING AND AGRIBUSINESS </br>Farming</strong>
</div>
<div class="panel-body">
Which of the value chains did your household produce in September 2016 through rain fed production mechanisms? Or you produce now through rain fed production mechanisms?<i>Select all options applicable – 1, 2 up to last</i>
<br />
<form name="add_name" id="add_name">
<!-- This is the Table That I am adding the widgets dynamically -->
<table class="table table-striped table-bordered" id="dynamic_field">
<thead>
<tr>
<th>Name of Crop Options</th>
<th>Crop Selected</th>
<th>Produced/produce this value chain in 2015/2016?</th>
</tr>
</thead>
<tbody>
<tr>
<td>
<div class="dropdown" name= "crops[]">
<button id="crop" onchange="copyValue()" class="btn dropdown-toggle" type="button" data-toggle="dropdown" >
Name of Crop<span class="caret"></span>
</button>
<ul class="dropdown-menu">
<li><a href="#">Maize</a></li>
<li><a href="#">Beans</a></li>
<li><a href="#">Tomatoes</a></li>
<li><a href="#">Potatoes</a></li>
</ul>
</div>
</td>
<td>
<input type="text" name="selectedCrop[]" id="selectedCrop" placeholder="Enter your Name" class="form-control name_list" />
</td>
<td>
<input type="text" name="name[]" placeholder="Enter your Name" class="form-control name_list" />
</td>
<td>
<button type="button" name="add" id="add" class="btn btn-success">Add More</button>
</td>
<!-- <td><button type="button" name="remove" id="'0'" class="btn btn-danger btn_remove">X</button></td></tr> -->
</tr>
</tbody>
</table>
<input type="button" name="submit" id="submit" class="btn btn-info" value="Submit" />
</form>
</div>
</div>
</div>
</div>
</div>
</div>
<script type="text/javascript">
$(document).ready(function(){
var i=1;
$('#add').click(function(){
i++;
$('#dynamic_field').append('<tr id="row'+i+'"><td><div class="dropdown" name= "crops[]"><button class="btn dropdown-toggle" type="button" data-toggle="dropdown" >Name of Crop<span class="caret"></span></button><ul class="dropdown-menu"><li><a href="#">Maize</a></li> <li><a href="#">Beans</a></li><li><a href="#">Tomatoes</a></li><li><a href="#">Potatoes</a></li></ul></div></td><td><input type="text" name="selectedCrop[]" id="selectedCrop" placeholder="Enter your Name" class="form-control name_list" /></td><td><input type="text" name="name[]" placeholder="Enter your Name" class="form-control name_list" /></td><td><button type="button" name="remove" id="'+i+'" class="btn btn-danger btn_remove">X</button></td></tr>');
});
$(document).on('click', '.btn_remove', function(){
var button_id = $(this).attr("id");
$('#row'+button_id+'').remove();
});
$('#submit').click(function(){
$.ajax({
url:"farming_and_agribusiness_1_copy.php",
method:"POST",
data:$('#add_name').serialize(),
success:function(data)
{
alert(data);
$('#add_name')[0].reset();
}
});
});
});
$(function(){
$(".dropdown-menu li a").click(function(){
$("#crop:first-child").text($(this).text());
$("#crop:first-child").val($(this).text());
$("#selectedCrop:first-child").text($(this).text());
$("#selectedCrop:first-child").val($(this).text());
});
});
</script>
<!-- Survey - END -->
</div>
</body>