<?php
if($_SERVER['REQUEST_METHOD'] ==='POST'){
if(empty($_POST['username'])){
$message = "会不会玩？";
}else{
if(empty($_POST['password'])){
$message = "输密码啊哥";
}
else{
if(empty($_POST['confirm'])){
$message = '输确认密码啊哥';
}
else{
if($_POST['password']!=$_POST['confirm']){
$message = '2个密码不一样，sb';
}else{
if(!(isset($_POST['agree']) && $_POST['agree']==='on')){
$message = '必须同意注册协议';
}
else{
$message = '注册成功';
$username = $_POST['username'];
$password = $_POST['password'];
file_put_contents('user.txt',$username.'|'.$password.'\n',FILE_APPEND);
}
}
}
}
}
}
?>
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<meta http-equiv="X-UA-Compatible" content="ie=edge">
<title>漂亮的表单</title>
<style>
form{
margin:200px auto;
width:310px;
height: 100px;
}
input{
display: block;
width: 200px;
height: 30px;
}
</style>
</head>
<body>
<form action="<?php echo $_SERVER['PHP_SELF']; ?>" method="post">
<table>
<tr>
<td><label for="username">用户名</label></td>
<td><input type="text" name="username" id="username"></td>
</tr>
<tr>
<td><label for="password">密码</label></td>
<td><input type="password" name="password" id="password"></td>
</tr>
<tr>
<td><label for="confirm">确认密码</label></td>
<td><input type="password" name="confirm" id="confirm"></td>
</tr> <tr>
<td></td>
<td><label><input type="checkbox" name="agree" id="">同意注册协议</label></td>
</tr>
<?php if(isset($message)): ?>
<tr>
<td></td>
<td><?php echo $message ?></td>
</tr>
<?php endif?>
<tr>
<td></td>
<td><button>注册</button></td>
</tr>
</table>
</form>
</body>
</html>
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