我是php的新手，我试图在数据库中插入多个值。我编写了我的函数，但是它抛出了一个错误。我已经在下面附上了我的html表单。我怎么能解决这个问题..
错误显示：
A PHP Error was encountered
Severity: Notice
Message: Undefined index: itemNo
Filename: controllers/main.php
Line Number: 2406
我的代码：
public function item_save(){
$con = mysql_connect("localhost","root","");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("inventory", $con);
//$id_number = $_GET['id_user'];
$val1=$_GET['itemNo'];
$val2=$_GET['itemName'];
$val3=$_GET['quantity'];
$val4=$_GET['price'];
$val5=$_GET['total'];
$val6=$_GET['subTotal'];
$val7=$_GET['tax'];
$val8=$_GET['taxAmount'];
$val9=$_GET['totalAftertax'];
$val10=$_GET['amountPaid'];
$val1=$_GET['amountDue'];
$N = count($val1);
for($i=0; $i < $N; $i++)
{
mysql_query("INSERT INTO item_save(item_no,item_name,qty,price,total,subtotal,tax,tax_amount,total_final,amount_paid,amount_due) VALUES ('$val1[$i]','$val2[$i]','$val3[$i]','$val4[$i]','$val5[$i]','$val6','$val7','$val8','$val9','$val10','$val11')");
}
redirect("main/multiple");
}
form.html
<div class="container content">
<?php
echo form_open_multipart('main/item_save');
?>
<?php
$submit=array(
'name'=>'submit',
'type'=>'submit',
'class'=>'btn btn-primary',
'value'=>'Submit',
);
?>
<div class='row'>
<div class='col-xs-12 col-sm-12 col-md-12 col-lg-12'>
<table class="table table-bordered table-hover">
<thead>
<tr>
<th width="2%"><input id="check_all" class="formcontrol" type="checkbox"/></th>
<th width="15%">Item No</th>
<th width="38%">Item Name</th>
<th width="15%">Price</th>
<th width="15%">Quantity</th>
<th width="15%">Total</th>
</tr>
</thead>
<tbody>
<tr>
<td><input class="case" type="checkbox"/></td>
<td><input type="text" data-type="productCode" name="itemNo[]" id="itemNo_1" class="form-control autocomplete_txt" autocomplete="off"></td>
<td><input type="text" data-type="productName" name="itemName[]" id="itemName_1" class="form-control autocomplete_txt" autocomplete="off"></td>
<td><input type="number" name="price[]" id="price_1" class="form-control changesNo" autocomplete="off" onkeypress="return IsNumeric(event);" ondrop="return false;" onpaste="return false;"></td>
<td><input type="number" name="quantity[]" id="quantity_1" class="form-control changesNo" autocomplete="off" onkeypress="return IsNumeric(event);" ondrop="return false;" onpaste="return false;"></td>
<td><input type="number" name="total[]" id="total_1" class="form-control totalLinePrice" autocomplete="off" onkeypress="return IsNumeric(event);" ondrop="return false;" onpaste="return false;"></td>
</tr>
</tbody>
</table>
</div>
</div>
<div class='row'>
<div class='col-xs-12 col-sm-3 col-md-3 col-lg-3'>
<button class="btn btn-danger delete" type="button">- Delete</button>
<button class="btn btn-success addmore" type="button">+ Add More</button>
</div>
<div class='col-xs-12 col-sm-offset-4 col-md-offset-4 col-lg-offset-4 col-sm-5 col-md-5 col-lg-5'>
<form class="form-inline">
<div class="form-group">
<label>Subtotal: </label>
<div class="input-group">
<div class="input-group-addon">$</div>
<input type="number" class="form-control" id="subTotal" name="subTotal" placeholder="Subtotal" onkeypress="return IsNumeric(event);" ondrop="return false;" onpaste="return false;">
</div>
</div>
<div class="form-group">
<label>Tax: </label>
<div class="input-group">
<div class="input-group-addon">$</div>
<input type="number" class="form-control" id="tax" name="tax" placeholder="Tax" onkeypress="return IsNumeric(event);" ondrop="return false;" onpaste="return false;">
</div>
</div>
<div class="form-group">
<label>Tax Amount: </label>
<div class="input-group">
<input type="number" class="form-control" id="taxAmount" name="taxAmount" placeholder="Tax" onkeypress="return IsNumeric(event);" ondrop="return false;" onpaste="return false;">
<div class="input-group-addon">%</div>
</div>
</div>
<div class="form-group">
<label>Total: </label>
<div class="input-group">
<div class="input-group-addon">$</div>
<input type="number" class="form-control" id="totalAftertax" name="totalAftertax" placeholder="Total" onkeypress="return IsNumeric(event);" ondrop="return false;" onpaste="return false;">
</div>
</div>
<div class="form-group">
<label>Amount Paid: </label>
<div class="input-group">
<div class="input-group-addon">$</div>
<input type="number" class="form-control" id="amountPaid" name="amountPaid" placeholder="Amount Paid" onkeypress="return IsNumeric(event);" ondrop="return false;" onpaste="return false;">
</div>
</div>
<div class="form-group">
<label>Amount Due: </label>
<div class="input-group">
<div class="input-group-addon">$</div>
<input type="number" class="form-control amountDue" id="amountDue" name="amountDue" placeholder="Amount Due" onkeypress="return IsNumeric(event);" ondrop="return false;" onpaste="return false;">
</div>
</div>
</form>
</div>
<?php echo form_submit($submit);?>
</div>
</div>
答案 0 :(得分：1)
Notice: Undefined index: itemNo表示您的$_GET['itemNo'];未设置。
您可能忘记在网址中添加&itemNo=xxx，但是在查看代码的其余部分时，您会遗漏itemNo[]来自表单的GET参数（我猜复选框）。
修改
现在，在您发布HTML后，我仍然没有看到<form>标记，让我问你。您确定使用GET方法吗？因为多部分表单通常使用POST方法。
检查你的HTML输出（作为浏览器中的源代码），或者一些网络调试，并检查它是POST还是GET。我打赌它是POST，但你试图检索GET。
此外，您可以尝试将$_GET更改为$_REQUEST（与GET和POST匹配），但这不是最好的主意。