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php之form表单
<!DOCTYPE HTML>
<html>
<head>
<title></title>
<meta charset="UTF-8"/>
<style type="text/css">
.error{
color: #FF0000;
}
</style>
</head>
<body>
<?php
$name = $email = $gender = $comment = $website = $nameErr = $emailErr = $websiteErr = $textarea = $gender = "";
if($_SERVER["REQUEST_METHOD"] == "POST"){
if(empty($_POST[‘name‘])){
$nameErr = "姓名必须填写";
}else{
$name = test_input($_POST["name"]);
}
if(empty($_POST[‘email‘])){
$emailErr = "邮件必须填写";
}else{
$email = test_input($_POST["email"]);
}
$gender = test_input($_POST["gender"]);
$comment = test_input($_POST["commet"]);
$website = test_input($_POST["website"]);
}
function test_input($data){
$data = trim($data);
$data = stripslashes($data);
$data = htmlspecialchars($data);
return $data;
}
?>
<h2>验证实例</h2>
<form method="post" action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"])?>">
姓名：<input type="text" name="name"/><span class="error"><?php echo $nameErr; ?></span><br />
邮件：<input type="email" name="email"/><span class="error"><?php echo $emailErr; ?></span><br />
网址：<input type="text" name="website" /><span class="error"><?php echo $websiteErr; ?></span><br />
评论：<textarea name="commet" cols="30" rows="10"></textarea><?php echo $textarea; ?><br />
性别：
<input type="radio" name="gender" value="http://www.mamicode.com/female"/>女性
<input type="radio" name="gender" value="http://www.mamicode.com/male" checked="checked"/>男性<br /><br />
<span class="error"><?php echo $gender; ?></span>
<input type="submit" value="http://www.mamicode.com/提交" />
</form>
<?php
echo "<h2>您的输入：</h2>";
echo $name;
echo "<br />";
echo $email;
echo "<br />";
echo $gender;
echo "<br />";
echo $comment;
echo "<br />";
echo $website;
echo "<br />";
?>
</body>
</html>
php之form表单
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