Question

我遇到下面表单的问题，每当我点击一个项目它捕获项目并更新mySQL表时，它只显示1项（如何让它显示我检查过的所有项目？）。

此外，当我输入数量时，它不会在mySQL表上更新，当我放入多个数量的每个项目时它只是说0。

如果可以的话，你们能帮忙吗？

<tr>
<th>Shirts</th>
<th>Quantity</th>
</tr>

<tr>

<td>
        <br />
        <input type="checkbox" name="items" value="SH01" /><label for="rd1">Obey T-Shirt: $9.99</label></div> <br />
        <input type="checkbox" name="items" value="SH02" /><label for="rd1">Obey Professor: $9.99</label></div> <br />
        <input type="checkbox" name="items" value="SH03" /><label for="rd1">Hustle T-Shirt: $9.99</label></div> <br />
        <input type="checkbox" name="items" value="SH04" /><label for="rd1">Hip-Hop Support: $9.99</label></div> <br />
        <input type="checkbox" name="items" value="SH05" /><label for="rd1">90's Shirt: $9.99</label></div> <br />
        <input type="checkbox" name="items" value="SH06" /><label for="rd1">DOPE Shirt: $9.99</label></div> <br />
        <br />
</td>

<td> 
        <br />
        <input type="text" name="qty" size ="2"/><br/>
        <input type="text" name="qty" size="2"/><br/>
        <input type="text" name="qty" size="2"/><br/>
        <input type="text" name="qty" size="2"/><br/>
        <input type="text" name="qty" size="2"/><br/>
        <input type="text" name="qty" size="2"/><br/>
        <br />

</td>

</tr>

<tr>

    <td>
        <br />
        <input type="checkbox" name="items" value="SO1" /><label for="rd1">Shoe - Red Lace: $19.99</label></div><br />
        <input type="checkbox" name="items" value="SO2" /><label for="rd1">Shoe - Red High Top: $19.99</label></div><br />
        <input type="checkbox" name="items" value="SO3" /><label for="rd1">Shoe - White: $19.99</label></div><br />
        <input type="checkbox" name="items" value="SO4" /><label for="rd1">Shoe - Black: $19.99</label></div><br />
        <input type="checkbox" name="items" value="SO5" /><label for="rd1">Shoe - Black High Top: $19.99</label></div><br /> 
        <input type="checkbox" name="items" value="SO6" /> <label for="rd1">Red Basketball: $19.99</label></div><br />
        <br />
    </td>

    <td> 
        <br />
        <input type="text" name="qty[]" size ="2"/><br/>
        <input type="text" name="qty[]" size="2"/><br/>
        <input type="text" name="qty[]" size="2"/><br/>
        <input type="text" name="qty[]" size="2"/><br/>
        <input type="text" name="qty[]" size="2"/><br/>
        <input type="text" name="qty[]" size="2"/><br/>
        <br />

</td>
</tr>

<tr>
    <td>
        <br />
        <input type="checkbox" name="items" value="SN1" /> <label for="rd1">Snapback Bullets: $29.99</label></div><br />
        <input type="checkbox" name="items" value="SN2" /><label for="rd1">Snapback: $29.99</label></div><br />
        <input type="checkbox" name="items" value="SN3" /><label for="rd1">Snapback Bullets: $29.99</label></div><br />
        <input type="checkbox" name="items" value="SN4" /><label for="rd1">Snapback Bullets: $29.99</label></div><br />
        <input type="checkbox" name="items" value="SN5" /><label for="rd1">Snapback Bullets: $29.99</label></div><br />
        <input type="checkbox" name="items" value="SN6" /><label for="rd1">Snapback Bullets: $29.99</label></div><br />
        <br />
    </td>
<td> 
        <br />
        <input type="text" name="qty" size ="2"/><br/>
        <input type="text" name="qty" size="2"/><br/>
        <input type="text" name="qty" size="2"/><br/>
        <input type="text" name="qty" size="2"/><br/>
        <input type="text" name="qty" size="2"/><br/>
        <input type="text" name="qty" size="2"/><br/>
        <br />

</td>   
</tr>

</tr>
</table>
<br />
<input type="submit" name="submit">
</form>

<?php

if (isset($_POST['submit']))
{
$con = mysql_connect('$localhost','$url','$pass');
if (!$con)
{
die("Could Not Connect: " . mysql_error());
}

mysql_select_db("$username",$con);

$sql = "INSERT INTO Order_Information(Order_ID,Order_Items,Order_Quantity) VALUES (null,'$_POST[items]','$_POST[qty]')";

mysql_query($sql,$con);

mysql_close($con);
}

?>

Answer 1

您需要做的第一件事是在foreach循环中更新，以便为每个选中的项插入一行;其次，您需要使用数组将数量字段与这些项关联。

将数量字段名称更改为包含项目代码的数组：

<input type="text" name="qty['SO1']" size ="2"/><br/>
        <input type="text" name="qty['SO2']" size="2"/><br/>
etc ...

然后在你的PHP中：

foreach ($_POST['items'] as $item) {
  foreach($_POST['qty'] as $key => $value) {
    $quantity = 0;
    if ($key == $item) {
      $quantity = $value;
    }
  }
$sql = "INSERT INTO Order_Information(Order_Items,Order_Quantity) VALUES ('$item', '$quantity')";
.
.
}

Answer 2

HTML

<input type="checkbox" name="items" value="SH01" />
<input type="text" name="qty_SH01" ..../>

PHP

foreach ($_POST as $key => $val) {
   if (!preg_match("/^SH/", $key)) continue;

   $qty = $_POST['qty_' . $key];

   $sql = "INSERT INTO Order_Information(Order_Items,Order_Quantity) VALUES ('$key', '$qty')";
}

Answer 3

使用$_POST[items]时，您忘记了撇号 - $_POST['items']。

要获取所有选中的复选框，您需要一个循环：

if(!empty($_POST['check_list']))
{
    foreach($_POST['items'] as $item)
    {
        ....
    }
}

PHP更新MySQL数据库的问题

3 个答案: