PHP フォームを検証するときに、F:\apache\Apache24\htdocs\chap01\form1.php の 21 行目に「 Notice: Unknownindex: email in F:\apache\Apache24\htdocs\chap01\form1.php」というメッセージが表示された場合はどうすればよいですか。
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>表单验证< ;/title>
<meta name="keywords" content="" />
<script type="text/javascript">
</script>
<style type="text/css">
</style>
</head>
<body>
<?php
$name = $email =$性別 =$comment = $website ="";
if($_SERVER["REQUEST_METHOD"] == "POST"){
$name = test_input($_POST["name"]);
$email = test_input($_POST["email"]);
$website = test_input($_POST["website"] );
$comment = test_input($_POST["comment"]);
$gender = test_input($_POST["gender"]);
}
function test_input($data){
$data = trim($data);
$data =tripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
< h2> php 验证实列</h2>
<form method="post" action ="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]);?>">
姓名:<input type="text" name ="name">
<br><br>
电邮:<input type="text " email ="email">
<br><br>
网址:<input type="text" website ="website">
<br><br>
评论:<input type="text" comment = "comment">
<br><br>
性别:
<input type="radio" name ="gender" vlaue ="女性">女性
<input type="radio" name ="gender" vlaue ="male">男性
<br><br>
<input type="submit" name="submit" value = "提交">
</form>
<?php
echo "<h2>您の入力:</h2> ";
echo "<br>";
echo $name;
echo "<br>";
echo $email;
echo "<br>";
echo $website;
echo "<br>";
echo $comment;
echo "<br>";
echo $gender;
?>
</body>
</html>
