52 lines
1.6 KiB
PHP
52 lines
1.6 KiB
PHP
<meta charset="utf-8">
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<?php
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require_once("db_config.php");
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if(isset($_POST['ok'])){
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$name = $_POST['name'];
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$password_1 = $_POST['password'];
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//服务器端数据验证
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$valid = true;
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if($name == ""){
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echo "姓名不能为空<br>";
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$valid = false;
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}
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//判断姓名是否重复
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$queryString = "select count(name) as counter from user_70 where name = '$name'";
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$rs = mysqli_query($link,$queryString);
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$row = mysqli_fetch_assoc($rs);
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if($row['counter'] != 0){
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// echo "用户". $name."已存在，请换名<br>";
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$userExist = true;
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}else{
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$userExist = false;
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}
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if($valid && !$userExist){
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//对密码加密
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$password_1 = md5($password_1);
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//如果验证通过，把注册信息写入表中
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$queryString = "insert into user_70(name,password) values('$name','$password_1') ";
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mysqli_query($link,$queryString);
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echo "恭喜，注册成功!";
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}
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if($valid && $userExist){
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$password_1 = md5($password_1);
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$queryString = "update user_70 set password = '$password_1' where name = '$name'";
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mysqli_query($link,$queryString);
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echo "密码更新成功";
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}
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}else{
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$name = "";
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}
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?>
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<form action="" method="post">
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姓名：<input type="text" id="name" name="name" value="<?php echo $name;?>"><br>
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密码：<input type="password" id="password" name="password" value=""><br>
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<input type="submit" id="ok" name="ok" value="ok">
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</form>
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<script>
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//同学们自行完成浏览器数据验证
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</script>
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