この次のコードで問題が発生しています.83行目に未定義のインデックスがあります.2番目の問題は、出力中に必要なフォームを埋めるテキストとフォームの入力テキストボックスの間に大きなギャップがあることです.助けてください.Theコードは以下に掲載されています。
<html>
<head>
<style>
.error {color: #FF0000;}
</style>
</head>
<body>
<?php
$firstnameErr = $lastnameErr = $emailErr = "";
$firstname = $lastname = $email = "";
if ($_SERVER["REQUEST_METHOD"] == "POST")
{
if (empty($_POST["firstname"]))
{
$firstnameErr = "Name is required";
}
else
{
$firstname = test_input($_POST["firstname"]);
}
if (empty($_POST["lastname"]))
{
$lastnameErr = "Name is required";
}
else
{
$lastname = test_input($_POST["lastname"]);
}
if (empty($_POST["email"]))
{
$emailErr = "Email is required";
}
else
{
$email = test_input($_POST["email"]);
}
}
function test_input($data)
{
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
<div text align =center><h1>Eventous Info</h1></div>
<h3>Fill the Required Form:</h3>
<p><span class="error">*required field</span></p>
<table>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
<tr><?php// echo htmlspecialchars($_SERVER["PHP_SELF"]);?>
<td>Firstname:</td>
<td><input type="text" name="firstname" ></td>
<td><span class="error">* <?php echo $firstnameErr;?></span></td><br><br>
</tr>
<tr>
<td>Lastname:</td>
<td><input type="text" name="lastname" ></td>
<td><span class="error">* <?php echo $lastnameErr;?></span></td><br><br>
</tr>
<tr>
<td>Email</td>
<td><input type="text" name="email"></td>
<td><span class="error">* <?php echo $emailErr;?></span></td><br><br>
</tr>
<tr>
<td>Phone:</td>
<td><input type="text" name="number"><td><br><br>
</tr>
</table>
<input type="submit" >
</form>
<?php
$con = mysql_connect("localhost","ashu123","bangalore");
if (!$con)
{
die('Could not connect: ' . mysql_error());
}
mysql_select_db("evantus", $con);
$sql="INSERT INTO employee (firstname, lastname, email, phone )
***LINE-83***
VALUES
('$_POST[firstname]','$_POST[lastname]','$_POST[email]','$_POST[number]')";
$sql = "select * from employee";
$query = mysql_query( $sql );
echo "<table>";
echo "<tr><th>firstname</th>";
echo "<th>lastname</th>";
echo "<th>email</th>";
echo "<th>phone</th></tr>";
while( $row = mysql_fetch_assoc($query) )
{
echo "<tr><td>$row[firstname]</td>";
echo "<td>$row[lastname]</td>";
echo "<td>$row[email]</td>";
echo "<td>$row[phone]</td></tr>";
}
echo "</table>";
if (!mysql_query($sql,$con))
{
die('Error: ' . mysql_error());
}
mysql_close($con)
?>
</body>
</html>