全部，
我从过时的迁移mysql_query到mysqli该过程中，在表单更新更改方面遇到了一些问题。具体来说，似乎$ud_id要获取的变量id不起作用。
查询被写入左外部联接链接表，empinfo并且headcount这两个表都包含链接主ID。
这是edit.php页面，该页面可以按预期工作并加载：
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<div class="header">
<?php include 'header.php';?>
</div>
<center>
<?php
// db connection
include_once('../connection.php');
// id pull from url
$ID = (int)$_GET['id'];
// get results from database
$query = "SELECT headcount.*, empinfo.*
FROM headcount
LEFT OUTER JOIN empinfo
ON headcount.id = empinfo.id
WHERE headcount.id = '$ID'";
$response = mysqli_query($dbc, $query);
while($row = mysqli_fetch_array($response))
{
echo "<form action='update.php' method='post'>";
echo '<div style="width:40%;padding:0 10pt 0 0;float:middle;">';
if ($row['isActive'] === '1')
echo '<input type="checkbox" name="ud_isActive" value="1" checked>Active<br />';
else
echo '<input type="checkbox" name="ud_isActive" value="0">Active<br />';
echo '<input type="hidden" name="ud_ID" value="<?=$ID;?>">';
echo "ID #: <input type='text' name='ud_hwid' value=". $row['id'] ." disabled readonly><br />";
echo 'Name: <input type="text" name="ud_EmployeeName" value="'. $row["EmployeeName"] .'"><br />';
echo '<br />';
echo '<a href="mailto:' . $row["Email"] .'">Email</a>: <input type="text" name="ud_Email" value="'. $row["Email"] .'"><br>';
echo '<br />';
echo 'DOB: <input type="text" name="ud_DOB" value='. $row["DOB"] .'><br />';
echo 'Age: <input type="text" name="ud_Age" value='. $row["Age"] .'><br />';
if ($row['isUnderage'] === '1')
echo '<input type="checkbox" name="isUnderage" value="1" checked>Underage<br />';
else
echo '<input type="checkbox" name="isUnderage" value="0">Underage<br />';
echo '</div>';
echo '<div style="width:40%;padding:0 10pt 0 0;float:middle;">';
echo '<br />';
echo 'Address: <input type="text" name="ud_StreetAddress" value="'. $row["StreetAddress"] .'"><br />';
echo 'City: <input type="text" name="ud_City" value="'. $row["City"] .'"><br />';
echo 'Zip Code: <input type="text" name="ud_ZipCode" value="'. $row["ZipCode"] .'"><br />';
echo '<br />';
echo 'Home Phone: <input type="text" name="ud_HomePhone" value="'. $row["HomePhone"] .'"><br />';
echo 'Wireless: <input type="text" name="ud_Wireless" value="'. $row["Wireless"] .'"><br />';
echo '<br />';
echo 'Home Department: <input type="text" name="ud_HomeDept" value="'. $row["HomeDept"] .'"><br />';
echo 'Department Manager: <input type="text" name="ud_Manager" value="'. $row["Manager"] .'"><br />';
echo '</div>';
echo '<br />';
echo 'Live Orientation:<input type="date" name="LODate" value=""><br />';
echo '<br />';
echo 'Online Training: <input type="date" name="OTTraining" value=""><br />';
}
?>
<br />
<input type="Submit">
</form> <br />
<a href="javascript:history.back()">Go Back</a>
<br />
</body>
</html>
这里是update.php -
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<style type="text/css">
#wrap {
width:600px;
margin:0 auto;
}
#left_col {
float:left;
width:300px;
}
#right_col {
float:right;
width:300px;
}
</style>
<div class="header">
<?php include 'header.php';?>
</div>
<center>
<?php
$ud_ID = $_REQUEST["ID"];
$ud_EmployeeName = $_POST["ud_EmployeeName"];
$ud_Email = $_POST["ud_Email"];
$ud_DOB = $_POST["ud_DOB"];
$ud_Age = $_POST["ud_Age"];
$ud_StreetAddress = $_POST["ud_StreetAddress"];
$ud_City = $_POST["ud_City"];
$ud_ZipCode = $_POST["ud_ZipCode"];
$ud_HomePhone = $_POST["ud_HomePhone"];
$ud_Wireless = $_POST["ud_Wireless"];
$ud_HomeDept = $_POST["ud_HomeDept"];
$ud_Manager = $_POST["ud_Manager"];
// db connection
include_once('../connection.php');
$query = "UPDATE headcount SET
EmployeeName = '$ud_EmployeeName', Email = '$ud_Email',
DOB = '$ud_DOB', Age = '$ud_Age', StreetAddress = '$ud_StreetAddress',
City = '$ud_City', ZipCode = '$ud_ZipCode', HomePhone = '$ud_HomePhone',
Wireless = '$ud_Wireless', HomeDept = '$ud_HomeDept', Manager = '$ud_Manager'
WHERE ID = '$ud_ID'";
$response = mysqli_query($dbc, $query);
echo $ud_ID;
echo $ud_EmployeeName;
if ($response)
echo '<p>Record Updated<p> <br /> <a href="javascript:history.back()">Go Back</a>';
else
echo "Problem updating record. MySQL Error: " . mysql_error();
?>
</body>
</html>
在update.php的第52行，您会注意到我使用echo$ud_ID和$ud_EmployeeName-这是向我展示变量显示的内容。的$ud_EmployeeName出现，$ud_ID没有。
我也尝试使用
$ud_ID = $_POST["ID"];
我没有结果。
另外，在edit.php上，我尝试了：
echo '<input type="hidden" name="ud_ID" value='. $row["id"] .'><br />';
我收到错误：
Notice: Undefined index: ID in update.php on line 27
当我单击submit按钮时，我收到一条消息，记录已更新，但刷新后，该记录具有相同的数据。
嗨，使用name属性获取价值
$ud_ID = $_POST['ud_ID'];
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我来说两句