<!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 http-equiv="Content-Type" content="text/html; charset=utf-8" />
<meta name="description" content="" />
<meta name="keywords" content="" />
<script type="text/javascript">
</script>
<style type="text/css">
</style>
</head>
<body>
<?php
$name = $email =$gender =$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);
$data = stripslashes($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 ="female">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>您的输入为：</h2>";
echo "<br>";
echo $name;
echo "<br>";
echo $email;
echo "<br>";
echo $website;
echo "<br>";
echo $comment;
echo "<br>";
echo $gender;
?>
</body>
</html>
![[Web front-end] Node.js quick start](https://img.php.cn/upload/course/000/000/067/662b5d34ba7c0227.png)
The input email does not have a name attribute. How does the server get it?
<!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 http-equiv="Content-Type" content="text/html; charset=utf-8" /> <meta name="description" content="" /> <meta name="keywords" content="" /> <script type="text/javascript"> </script> <style type="text/css"> </style> </head> <body> <?php $name = $email = $gender =$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); $data = stripslashes($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" name="email"> <br><br> 网址:<input type="text" name="website"> <br><br> 评论:<input type="text" name="comment"> <br><br> 性别: <input type="radio" name="gender" vlaue ="female">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>您的输入为：</h2>"; echo "<br>"; echo $name; echo "<br>"; echo $email; echo "<br>"; echo $website; echo "<br>"; echo $comment; echo "<br>"; echo $gender; ?> </body> </html>