Php 表格提交不起作用
我有一张桌子，可以打印出所有可用的摄像机。它使用表单来更改这些设置。问题是表单只更新条目中的最后一个摄影机。换言之，如果我更改表单并点击应用列表中的最后一个摄影机，它将工作。如果我更改此列表中任何其他摄影机的窗体，它将更改该摄影机，使其具有与列表中最后一个摄影机相同的设置。据我所知，任何价值观都没有问题 很抱歉，这里的垃圾堆很长，但由于无法缩小问题的范围，我认为应该包括大部分：Php 表格提交不起作用,php,javascript,html,Php,Javascript,Html,我有一张桌子，可以打印出所有可用的摄像机。它使用表单来更改这些设置。问题是表单只更新条目中的最后一个摄影机。换言之，如果我更改表单并点击应用列表中的最后一个摄影机，它将工作。如果我更改此列表中任何其他摄影机的窗体，它将更改该摄影机，使其具有与列表中最后一个摄影机相同的设置。据我所知，任何价值观都没有问题 很抱歉，这里的垃圾堆很长，但由于无法缩小问题的范围，我认为应该包括大部分： // Dont allow direct linking defined('_JEXEC') or die('Dire
// Dont allow direct linking
defined('_JEXEC') or die('Direct Access to this location is not allowed.');
//get current user
$user =& JFactory::getUser();
// get a reference to the database
$db = &JFactory::getDBO();
$query_camera_name = "SELECT camera_id, camera_name, camera_status, camera_quality, camera_hash, camera_type FROM #__cameras WHERE user_id=".$user->id." AND camera_status!='DELETED'";
$db->setQuery($query_camera_name);
//get number of cameras so we can build the table accordingly
$db->query();
$num_rows = $db->getNumRows();
// We can use array names with loadAssocList.
$result_cameras = $db->loadAssocList();
if (isset($_POST['apply_changes'])) {
//process changes to camera options
$camera_id = $_POST['camera_id'];
$camera_status = check_input($_POST['camera_status']);
$camera_name = check_input($_POST['camera_name'], "You entered an empty camera name. Enter another name and apply changes.");
$camera_quality = check_input($_POST['camera_quality']);
$query_insert_camera = 'UPDATE `#__cameras` SET `camera_status` ="'.$camera_status.'", `camera_name` ="'.$camera_name.'", `camera_quality` ="'.$camera_quality.'" WHERE `camera_id`='.$camera_id;
$db->setQuery($query_insert_camera);
$db->query();
header("location: " . $_SERVER['REQUEST_URI']);
}
echo "<html>";
echo "<head>";
<link href="dashboard/webcam_widget.css" rel="stylesheet" type="text/css" />
<script type="text/javascript">
function oncameraSubmit(camera_id)
{
document.active_cameras.camera_id.value = camera_id;
return confirm('Apply changes?');
}
</script>
<?php
echo "</head>";
echo "<body>";
if (!isset($result_cameras))
{
//TODO
}
else
{
if ($num_rows == 0)
{
echo '<b><i><center>You currently have no cameras setup. Add a Camera below.</center></i></b>';
}
else
{
?>
<form name="active_cameras" action="<?php htmlentities($_SERVER['REQUEST_URI']); ?>" method="POST">
<input type="hidden" name="camera_id" value="" />
<table id="webcam-table">
<thead>
<tr>
<th>Camera Type</th>
<th>Name</th>
<th>Quality</th>
<th>Status</th>
<th>Camera Actions</th>
</tr>
</thead>
<tbody>
<?php
for($i=0;$i<$num_rows;$i++)
{
//camera_status
if ($result_cameras[$i]["camera_status"] == "ENABLED")
{
$enabled_option = "value='ENABLED' selected='selected'";
$disabled_option = "value='DISABLED'";
}
else
{
$enabled_option = "value='ENABLED'";
$disabled_option = "value='DISABLED' selected='selected'";
}
//camera_quality
if ($result_cameras[$i]["camera_quality"] == "HIGH")
{
$high_option = "value='HIGH' selected='selected'";
$medium_option = "value='MEDIUM'";
$mobile_option = "value='MOBILE'";
}
else if ($result_cameras[$i]["camera_quality"] == "MEDIUM")
{
$high_option = "value='HIGH'";
$medium_option = "value='MEDIUM' selected='selected'";
$mobile_option = "value='MOBILE'";
}
else if ($result_cameras[$i]["camera_quality"] == "MOBILE")
{
$high_option = "value='HIGH'";
$medium_option = "value='MEDIUM'";
$mobile_option = "value='MOBILE' selected='selected'";
}
else
{
//TODO proper logging
}
//camera_type
if ($result_cameras[$i]["camera_type"] == "WEBCAM")
{
$webcam = "value='WEBCAM' selected='selected'";
$axis = "value='AXIS'";
$other = "value='IPCAM'";
}
else if ($result_cameras[$i]["camera_type"] == "AXIS")
{
$webcam = "value='WEBCAM'";
$axis = "value='AXIS' selected='selected'";
$other = "value='IPCAM'";
}
else if ($result_cameras[$i]["camera_type"] == "IPCAM")
{
$webcam = "value='WEBCAM'";
$axis = "value='AXIS'";
$other = "value='IPCAM' selected='selected'";
}
else
{
//TODO
}
?>
<tr>
<td>
<select name="camera_type">
<option <?php echo $webcam; ?>>Webcam</option>
<option <?php echo $axis; ?>>AXIS</option>
<option <?php echo $other; ?>>Other</option>
</select>
</td>
<td>
<input type="text" size="32" maxlength="64" name="camera_name" value="<?php echo $result_cameras[$i]["camera_name"]; ?>" />
</td>
<td>
<select name="camera_quality">
<option <?php echo $high_option; ?>>High</option>
<option <?php echo $medium_option; ?>>Medium</option>
<option <?php echo $mobile_option; ?>>Mobile</option>
</select>
</td>
<td>
<select name="camera_status">
<option <?php echo $enabled_option; ?>>Enabled</option>
<option <?php echo $disabled_option; ?>>Disabled</option>
</select>
</td>
<td>
<input type="submit" name="apply_changes" value="Apply" onClick="javascript:return oncameraSubmit(<?php echo $result_cameras[$i]["camera_id"]; ?>);"/>
</td>
</tr>
<?php
}
echo "</tbody>";
echo "</table>";
echo "</form>";
}
}
表单元素名称冲突。当您定义表单元素（例如“camera_status”）两次时，您将只收到帖子中的最后一个值
使用表单数组表示法，例如：camera_status[]或更好的camera_status[$id]。然后您的PHP代码将接收数组作为POST数据，您将能够一次更新所有内容。看起来您有多个同名HTML元素。因此，您希望在发布表单时返回一个值数组 这样看来，它可能会有所帮助
或者，扩展oncameraSubmit，使其将所有数据存储在一个隐藏的输入字段中，而不仅仅是id。然后在更新数据库时，使用这些隐藏字段。最简单的方法是发出x更新查询，其中x是数组元素的数量。或者，看看我的最后一段——如果你这样做，你只能发布一个更新。