我决定让我的数据库有一个活动的超链接，这样当我找到一条记录时，我点击一个电子邮件地址，电子邮件就会打开。但我在更新方面有问题，当我想对条目进行更正时，当我按下更新时，电子邮件消失了，我得到：注意：未定义的索引：第36行上的Mail-in/Applications/XAMPP/examplefiles/htdocs/robocze/mydata_dodaj_test_1.php
我可以添加记录，但无法更新。。。
你能帮我吗，谢谢
代码：
<?php
session_start();
if(!isset($_SESSION["sess_user"])){
header("location:login.php");
} else {
?>
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Baza Klientów</title>
</head>
<body>
<h3>Welcome, <?=$_SESSION['sess_user'];?>! <a href="logout.php">Logout</a> </h3>
<input type="button" onclick="location.href='mydata_dodaj_test_1.php';" value="Powrót do wyszukiwania" />
<input type="button" onclick="location.href='index.php';" value="MENU powrót" />
<h2><b><center>Wyszukiwanie Klientów ITalents</center></b></h2>
<?php
}
?>
<?php
$con = mysql_connect("","","","");
if (!$con){
die("Błąd połączenia: " . mysql_error());
}
mysql_select_db("baza",$con);
if(isset($_POST['update'])) {
$UpdateQuery = "UPDATE Klienci SET id='$_POST[id]', Firma='$_POST[Firma]', Mail='$_POST[Mail]', Data='$_POST[Data]', Konsultant='$_POST[Konsultant]' WHERE id='$_POST[hidden]'";
mysql_query($UpdateQuery,$con);
};
if(isset($_POST['add'])) {
$AddQuery = "INSERT INTO Klienci (id, Firma, Mail, Data, Konsultant) VALUES ('$_POST[uid]','$_POST[uFirma]','$_POST[uMail]','$_POST[uData]','$_POST[uKonsultant]')"; // this is the 36 line
mysql_query($AddQuery,$con);
};
if(isset($_POST['search']))
{
$valueToSearch = $_POST['valueToSearch'];
$query = "SELECT * FROM Klienci WHERE CONCAT(Firma, Mail, Konsultant) LIKE '%".$valueToSearch."%'";
$search_result = filterTable($query);
}
else {
$query = "SELECT * FROM Klienci ORDER BY id ASC";
$search_result = filterTable($query);
}
function filterTable($query)
{
$con = mysql_connect("","","","");
if (!$con){
die("Błąd połączenia: " . mysql_error());
}
mysql_select_db("baza",$con);
$filter_Result = mysql_query($query, $con);
return $filter_Result;
};
echo "<form action=mydata_dodaj_test_1.php method=post>";
echo "<input type=text name=valueToSearch placeholder=wpisz>";
echo "<input type=submit name=search value=Szukaj>";
echo "<table align=center style=text-align:center border=5>
<tr>
<th>ID</th>
<th>Firma</th>
<th>Mail</th>
<th>Data</th>
<th>Konsultant</th>
</tr>";
while($row = mysql_fetch_array($search_result)) {
echo "<form action=mydata_dodaj_test_1.php method=post>";
echo "<tr>";
echo "<td>" . "<input type=int name=id value=" . $row['id'] . " </td>";
echo "<td>" . "<input type=varchar name=Firma value=" . $row['Firma'] . " </td>";
echo "<td>" . "<a href='mailto:{$row['Mail']}'>" . $row['Mail'] . " </td>";
echo "<td>" . "<input type=date name=Data value=" . $row['Data'] . " </td>";
echo "<td>" . "<input type=varchar name=Konsultant value=" . $row['Konsultant'] . " </td>";
echo "<td>" . "<input type=hidden name=hidden value=" . $row['id'] . " </td>";
echo "<td>" . "<input type=submit name=update value=update" . " </td>";
echo "</form>";
}
echo "<form action=mydata_dodaj_test_1.php method=post>";
echo "<tr>";
echo "<td><input type=text name=uid></td>";
echo "<td><input type=varchar name=uFirma></td>";
echo "<td><input type=text name=uMail></td>";
echo "<td><input type=text name=uData></td>";
echo "<td><input type=text name=uKonsultant></td>";
echo "<td>" . "<input type=submit name=add value=dodaj" . " </td>";
echo "</form>";
echo "</table>";
?>
<input type="button" onclick="location.href='mydata_dodaj_test_1.php';" value="Powrót do wyszukiwania" />
<input type="button" onclick="location.href='index.php';" value="MENU powrót" />
</body>
</html>
如更新语句中的错误所述undefined index
$UpdateQuery = "UPDATE Klienci SET id='$_POST[id]', Firma='$_POST[Firma]', Mail='$_POST[Mail]', Data='$_POST[Data]', Konsultant='$_POST[Konsultant]' WHERE id='$_POST[hidden]'";
您正在访问$_POST[Mail]，它在您的表单中没有位置。