我正在研究这段代码，而且我现在正处于智慧状态。由于某种原因，我无法更新我的数据库。
下面的代码更新，代码不再有效，更新命令似乎会停止PHP并导致错误。如果有人能解决这个问题，我将不胜感激。
<?php
require_once('connectvars.php');
echo '<div id="postwrap">'
?>
<!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" xml:lang="en" lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>PDI NCMR - Edit</title>
<link rel="stylesheet" type="text/css" href="CSS/postie.css" />
</head>
<body>
<div id="logo">
<img src="../images/PDI_Logo_2.1.gif" alt="PDI Logo" />
</div>
<?php
if (isset($_POST['submit'])) {
// Connect to the database
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
// Enter data into the database
$id = mysqli_real_escape_string($dbc, trim($_POST['id']));
$ab = mysqli_real_escape_string($dbc, trim($_POST['ab']));
$date = mysqli_real_escape_string($dbc, trim(date('Y-m-d',strtotime ($_POST['date']))));
$part = mysqli_real_escape_string($dbc, trim($_POST['part']));
$rev = mysqli_real_escape_string($dbc, trim($_POST['rev']));
$partdesc = mysqli_real_escape_string($dbc, trim($_POST['partdesc']));
$ncmrqty = mysqli_real_escape_string($dbc, trim($_POST['ncmrqty']));
$comp = mysqli_real_escape_string($dbc, trim($_POST['comp']));
$ncmrid = mysqli_real_escape_string($dbc, trim($_POST['ncmrid']));
$rma = mysqli_real_escape_string($dbc, trim($_POST['rma']));
$jno = mysqli_real_escape_string($dbc, trim($_POST['jno']));
$fdt = mysqli_real_escape_string($dbc, trim($_POST['fdt']));
$cof = mysqli_real_escape_string($dbc, trim($_POST['cof']));
$fab1= mysqli_real_escape_string($dbc, trim($_POST['fab1']));
$fab2= mysqli_real_escape_string($dbc, trim($_POST['fab2']));
$fab3= mysqli_real_escape_string($dbc, trim($_POST['fab3']));
$non= mysqli_real_escape_string($dbc, trim($_POST['non']));
$dis= mysqli_real_escape_string($dbc, trim($_POST['dis']));
$comm= mysqli_real_escape_string($dbc, trim($_POST['comm']));
$caad= mysqli_real_escape_string($dbc, trim($_POST['caad']));
$po= mysqli_real_escape_string($dbc, trim($_POST['po']));
$pod = mysqli_real_escape_string($dbc, trim(date('Y-m-d',strtotime($_POST['pod']))));
$dri = mysqli_real_escape_string($dbc, trim(date('Y-m-d',strtotime($_POST['dri']))));
$query = "UPDATE ncmr SET ab = '$ab', date = '$date', part = '$part', rev = '$rev' , partdesc = '$partdesc' , ncmrqty = '$ncmrqty' , comp = '$comp' , ncmrid = '$ncmrid' , rma = '$rma' , jno = '$jno' , fdt = '$fdt' , cof = '$cof' , fab1 = '$fab1' , fab2 = '$fab2' , fab3 = '$fab3' , non = '$non' , dis = '$dis' , comm = '$comm' , caad = '$caad' , po = '$po' , pod = '$pod' , dri = '$dri' WHERE id = "$_GET['id']"";
// echo your raw query and look for obvious errors
echo "Query is : " . $query . "<br />";
// and at least use a basic mechanism to trap possibles errors
mysqli_query($dbc, $query) or die('Query Error : ' . mysqli_error($dbc));
// Confirm success with the user
echo '<p>If you wish to edit more NCMRs, please <a href="list.php">go to the admin page!</a></p>';
// echo your raw query and look for obvious errors
echo "Query is : " . $query . "<br />";
// Clear the form data
$id = "";
$ab = "";
$date = "";
$part = "";
$rev = "";
$partdesc = "";
$ncmrqty = "";
$comp = "";
$ncmrid = "";
$rma = "";
$jno = "";
$fdt = "";
$cof = "";
$fab1= "";
$fab2= "";
$fab3= "";
$non= "";
$dis= "";
$comm= "";
$caad= "";
$po= "";
$pod = "";
$dri = "";
mysqli_close($dbc);
}
else {
// Connect to the database
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
// Grab the profile data from the database
if (!isset($_GET['id'])) {
$query = "SELECT * FROM ncmr WHERE id = '$id'";
}
else {
$query = "SELECT * FROM ncmr WHERE id = '" . $_GET['id'] . "'";
}
$data = mysqli_query($dbc, $query);
if (mysqli_num_rows($data) == 1) {
// The user row was found so display the user data
$row = mysqli_fetch_array($data);
echo '<form action="edit.php?id=<?php echo $id;?>" method="POST">'
echo '<fieldset>';
echo '<div id="box1">';
if (empty($row['ab'])) $row['ab'] = "Empty";
if (empty($row['date'])) $row['date'] = "Empty";
if (empty($row['part'])) $row['part'] = "Empty";
if (empty($row['rev'])) $row['rev'] = "Empty";
if (empty($row['partdesc'])) $row['partdesc'] = "Empty";
if (empty($row['ncmrqty'])) $row['ncmrqty'] = "Empty";
echo '<div id="ab"><span class="b">Added By: </span><input type="text" name="ab" value="' . $row['ab'] . '" /></div>';
echo '<div id="date"><span class="b">Date Filed: </span><input type="text" name="date" value="' . $row['date'] . '" /></div>';
echo '<div id="part"><span class="b">Part Number: </span><input type="text" name="part" value="' . $row['part'] . '" /></div>';
echo '<div id="rev"><span class="b">Part Revision: </span><input type="text" name="rev" value="' . $row['rev'] . '" /></div>';
echo '<div id="partdesc"><span class="b">Part Description: </span><textarea rows="4" cols="22">' . $row['partdesc'] . '</textarea></div>';
echo '<div id="ncmrqty"><span class="b">NCMR Qty: </span><input type="text" name="ncmrqty" value="' . $row['ncmrqty'] . '" /></div>';
echo '</div>';
//Company, Customer NCMR, Internal RMA, and Job Number
echo '<div id="box2">';
if (empty($row['comp'])) $row['comp'] = "Empty";
if (empty($row['ncmrid'])) $row['ncmrid'] = "Empty";
if (empty($row['rma'])) $row['rma'] = "Empty";
if (empty($row['jno'])) $row['jno'] = "Empty";
echo '<div id="comp"><span class="b">Company: </span><input type="text" name="comp" value="' . $row['comp'] . '" /></div>';
echo '<div id="ncmrid"><span class="b">Customer NCMR ID: </span><input type="text" name="ncmrid" value="' . $row['ncmrid'] . '" /></div>';
echo '<div id="rma"><span class="b">Internal RMA #: </span><input type="text" name="rma" value="' . $row['rma'] . '" /></div>';
echo '<div id="jno"><span class="b">Job #: </span><input type="text" name="jno" value="' . $row['jno'] . '" /></div>';
echo '</div>';
//Type of Failure and Class of Failure
echo '<div id="box3">';
echo '<h2>Failure</h2>';
echo '<div id="cof"><span class="b">Class of Failure: </span><input type="text" name="cof" size="15" value="' . $row['cof'] . '" /></div>';
echo '<div id="fdt"><span class="b">Failure Due To: </span><input type="text" name="fdt" size="15" value="' . $row['fdt'] . '" /></div>';
echo '</div>';
//Fabricators
echo '<div id="box4">';
echo '<h2>Fabricators</h2>';
if ($row['fab1']="--None--")
{
echo'<div id="fab1">';
$mysqli = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
$mysqli->select_db('user');
$result = $mysqli->query("SELECT * FROM user");
echo "<SELECT name='fab1'>\n";
while($row = $result->fetch_assoc())
{
echo "<option value='{$row['user']}'>{$row['user']}</option>\n";
}
echo "</select>\n";
echo '</div>';
}
else
{
echo'<div id="fab1">';
$mysqli = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
$mysqli->select_db('user');
$result = $mysqli->query("SELECT * FROM user");
echo "<SELECT name='fab1'>\n";
while($row = $result->fetch_assoc())
{
echo "<option value='{$row['user']}'>{$row['user']}</option>\n";
}
echo "</select>\n";
echo '</div>';
}
if ($row['fab2']="--None--")
{
echo'<div id="fab2">';
$mysqli = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
$mysqli->select_db('user');
$result = $mysqli->query("SELECT * FROM user");
echo "<SELECT name='fab2'>\n";
while($row = $result->fetch_assoc())
{
echo "<option value='{$row['user']}'>{$row['user']}</option>\n";
}
echo "</select>\n";
echo '</div>';
}
else
{
echo '<div id="fab2"><span class="b"></span><input type="text" name="fab1" size="20" value="' . $row['fab1'] . '" /></div>';
echo '</div>';
}
if ($row['fab3']="--None--")
{
echo'<div id="fab3">';
$mysqli = new mysqli(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
$mysqli->select_db('user');
$result = $mysqli->query("SELECT * FROM user");
echo "<SELECT name='fab3'>\n";
while($row = $result->fetch_assoc())
{
echo "<option value='{$row['user']}'>{$row['user']}</option>\n";
}
echo "</select>\n";
echo '</div>';
}
else
{
echo '<div id="fab3"><span class="b"></span><input type="text" name="fab1" size="20" value="' . $row['fab1'] . '" /></div>';
echo '</div>';
} echo '</div>';
//Nonconformity, Disposition, Comments and Comments & Additional Details
echo '<div id="box5">';
if (empty($row['non'])) $row['non'] = "Empty";
if (empty($row['dis'])) $row['dis'] = "Empty";
if (empty($row['comm'])) $row['comm'] = "Empty";
if (empty($row['caad'])) $row['caad'] = "Empty";
echo '<div id="non"><span class="b">Nonconformity: </span><textarea rows="4" cols="105">' . $row['non'] . '</textarea></div>';
echo '<div id="dis"><span class="b">Disposition: </span><textarea rows="4" cols="105">' . $row['dis'] . '</textarea></div>';
echo '<div id="comm"><span class="b">Comments: </span><textarea rows="4" cols="105">' . $row['comm'] . '</textarea></div>';
echo '<div id="caad"><span class="b">Comments and/or Additional Details: </span><textarea rows="4" cols="105">' . $row['caad'] . '</textarea></div>';
echo '<div id="podr">';
if (empty($row['po'])) $row['po'] ="Empty";
if (empty($row['pod'])) $row['pod'] ="Empty";
if (empty($row['dir'])) $row['dri'] ="Empty";
echo '<div id="po"><span class="b">PO: </span><input type="text" name="po" size="7" value="' . $row['po'] . '" /></div>';
echo '<div id="pod"><span class="b">PO Date: </span><input type="text" name="pod" size="7" value="' . $row['pod'] . '" /></div>';
echo '<div id="dri"><span class="b">Date Received: </span><input type="text" name="dri" size="7" value="' . $row['dri'] . '" /></div>';
echo '</div>';
echo '<div id="button2"><input type="submit" value="Submit Edits" name="submit" /></div>';
echo '</div>';
echo '</fieldset>';
echo '</form>';
}
}
echo '</div>';
?>
</body>
</html>
答案 0 :(得分：1)
您需要清除用户的所有输入。如果$ GET或$ POST与查询字符串存在于同一行，则需要像以下那样对其进行转义：
$query = "SELECT * FROM ncmr WHERE id = '" . $_GET['id'] . "'";
更好的是，你已经在使用mysqli了，所以请改用预备语句。
如果您正在使用mysqli，您可能正在使用InnoDB，并且可能隐式启用了事务，并且连接的自动提交已关闭，因此您可能不会提交事务，至少如果有的话影响。尝试在关闭前添加mysqli_commit（），看看它是否有帮助。
通常，在开发模式下，您可能需要检查php.ini是否有错误报告，并检查Web服务器上的error_log以查看是否报告了错误。如果查询失败，它可能不会显示在页面输出上，但它可能会显示在错误日志中。
答案 1 :(得分：1)
您的表单方法为POST，因此您需要添加hidden字段以嵌入/保存ID（来自$ _GET的值），因此当您提交此表单时，您将获得textarea以及使用$_POST['id']的正确ID值。
我删除了一些不相关的陈述。
.....
.....
<?php
$id=0;
if(isset($_GET['id']))
$id=$_GET['id'];
if (isset($_POST['submit'])) {
$id=$_POST["id"];
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
$ncmrsr = mysqli_real_escape_string($dbc, trim($_POST['ncmrsr']));
$ncmrsc = mysqli_real_escape_string($dbc, trim($_POST['ncmrsc']));
$query = "UPDATE ncmr SET ncmrsr = '$ncmrsr', ncmrsc = '$ncmrsc' WHERE id = $id";
$result=mysqli_query($dbc, $query);
if($result)
echo '<p>Your comments have been successfully entered. Please <a href="list.php">return to the admin page</a> to view the final report!</p>';
mysqli_close($dbc);
}
else
{
if(!isset($_GET['id']))
{
header("Location: list.php");
exit();
}
$dbc = mysqli_connect(DB_HOST, DB_USER, DB_PASSWORD, DB_NAME);
$query = "SELECT * FROM ncmr WHERE id = $id";
$data = mysqli_query($dbc, $query);
if (mysqli_num_rows($data) == 1) {
// The user row was found so display the user data
$row = mysqli_fetch_array($data);
echo'<div id="title"><h3 id="NCMR2">Non-Conforming Materials Report (NCMR: ' . $row['rma'] . ')</h3></div>';
echo "<form action='".$_SERVER['PHP_SELF']."' method='post'>";
echo '<fieldset>';
echo '<div id="box6">';
// We know both $ncmrsr AND $ncmrsc are blank
if (empty($row['ncmrsr']) && empty($row['ncmrsc'])) {
// add comment.
echo '<div id="ncmrsr"><span class="b">NCMR Supplier Response:<br /></span><textarea name="ncmrsr" rows="6" cols="105" ></textarea></div>';
echo '<div id="ncmrsc"><span class="b">NCMR Supplier Comment:<br /></span><textarea name="ncmrsc" rows="6" cols="105" ></textarea></div>';
echo '<div id="button2"><input type="submit" name="submit" value="Add Comment" /></div>';
//Save ID so it can be used with POST request.
echo "<input type='hidden' value='$id' name='id'/>";
}
else {
// echo the two fields.
if (empty($row['ncmrsr'])) $row['ncmrsr'] ="Empty";
if (empty($row['ncmrsc'])) $row['ncmrsc'] ="Empty";
echo '<div id="ncmrsr"><span class="b">NCMR Supplier Response:</span><br />' . $row['ncmrsr'] . '</div>';
echo '<div id="ncmrsc"><span class="b">NCMR Supplier Comment:</span><br />' . $row['ncmrsc'] . '</div>';
echo '</div>';
echo '</fieldset>';
echo '</form>';
}
}
// End of check for a single row of user results
else {
echo '<p class="error">Please contact the web administrator, there seems to be an error!</p>';
}
mysqli_close($dbc);
}
echo '</div>';
?>
</body>
</html>
答案 2 :(得分：0)
我建议您测试 mysqli_query（$ dbc，$ query）是否成功
if (mysqli_query($dbc, $query)) {
echo '<p>Your comments have been successfully entered. Please <a href="list.php">return to the admin page</a> to view the final report!</p>';
} else {
echo mysqli_error($dbc);
}