Rumah > Artikel > pembangunan bahagian belakang > php如何实现注册
php如何实现注册
- angryTomasal
- 2019-10-19 15:07:192748semak imbas
php如何实现注册
1、编写前端注册form表单代码
<!DOCTYPE html>
<html>
<head><title>注册</title>
<meta name="content-type"; charset="UTF-8">
</head><body>
<div class="content" align="center"> <!--头部-->
<div class="header"> <h1>注册页面</h1> </div> <!--中部-->
<div class="middle">
<form action="registeraction.php" method="post"> <table border="0">
<tr> <td>用户名：</td>
<td><input type="text" id="id_name" name="username" required="required"></td>
</tr> <tr>
<td>密 码：</td> <td><input type="password" id="password" name="password"
required="required"></td>
</tr> <tr>
<td>重复密码：</td> <td><input type="password" id="re_password"
name="re_password" required="required"></td> </tr> <tr>
<td>性别：</td> <td> <input type="radio" id="sex" name="sex" value="mam">男 <input type="radio" id="sex" name="sex" value="woman">女 </td> </tr> <tr>
<td>QQ：</td> <td><input type="text" id="qq" name="qq" required="required"></td> </tr> <tr>
<td>Email：</td> <td><input type="email" id="email" name="email" required="required"></td> </tr> <tr>
<td>电话：</td> <td><input type="text" id="phone" name="phone" required="required"></td> </tr> <tr>
<td>地址：</td> <td><input type="text" id="address" name="address" required="required"></td> </tr>
<tr> <td colspan="2" align="center" style="color:red;font-size:10px;"> <!--提示信息-->
<?php
$err = isset($_GET["err"]) ? $_GET["err"] : "";
switch ($err) {
case 1:
echo "用户名已存在！";
break;
case 2:
echo "密码与重复密码不一致！";
break;
case 3:
echo "注册成功！";
break;
}
?>
</td> </tr> <tr> <td colspan="2" align="center">
<input type="submit" id="register" name="register" value="注册">
<input type="reset" id="reset" name="reset" value="重置"> </td></tr>
<tr> <td colspan="2" align="center">
如果已有账号，快去<a href="login.php">登录</a>吧！ </td> </tr> </table> </form> </div>
<!--脚部-->
<div class="footer"> <small>Copyright © 版权所有·欢迎翻版 </div> </div></body></html>2、编写后台注册registeraction.php代码
<?php
// $Id:$ //声明变量
$username = isset($_POST['username']) ? $_POST['username'] : "";
$password = isset($_POST['password']) ? $_POST['password'] : "";
$re_password = isset($_POST['re_password']) ? $_POST['re_password'] : "";
$sex = isset($_POST['sex']) ? $_POST['sex'] : "";
$qq = isset($_POST['qq']) ? $_POST['qq'] : "";
$email = isset($_POST['email']) ? $_POST['email'] : "";
$phone = isset($_POST['phone']) ? $_POST['phone'] : "";
$address = isset($_POST['address']) ? $_POST['address'] : "";
if ($password == $re_password) { //建立连接
$conn = mysqli_connect("localhost", "", "", "user"); //准备SQL语句,查询用户名
$sql_select = "SELECT username FROM usertext WHERE username = '$username'"; //执行SQL语句
$ret = mysqli_query($conn, $sql_select);
$row = mysqli_fetch_array($ret); //判断用户名是否已存在
if ($username == $row['username']) { //用户名已存在，显示提示信息
header("Location:register.php?err=1");
} else { //用户名不存在，插入数据 //准备SQL语句
$sql_insert = "INSERT INTO usertext(username,password,sex,qq,email,phone,address)
VALUES('$username','$password','$sex','$qq','$email','$phone','$address')"; //执行SQL语句
mysqli_query($conn, $sql_insert);
header("Location:register.php?err=3");
} //关闭数据库
mysqli_close($conn);
} else {
header("Location:register.php?err=2");
} ?>3、数据表设计：
4、效果：
更多PHP相关知识，请访问PHP中文网！
Atas ialah kandungan terperinci php如何实现注册. Untuk maklumat lanjut, sila ikut artikel berkaitan lain di laman web China PHP!
Kenyataan：
Kandungan artikel ini disumbangkan secara sukarela oleh netizen, dan hak cipta adalah milik pengarang asal. Laman web ini tidak memikul tanggungjawab undang-undang yang sepadan. Jika anda menemui sebarang kandungan yang disyaki plagiarisme atau pelanggaran, sila hubungi admin@php.cn
Artikel sebelumnya：php为什么不适合socketArtikel seterusnya：php网址导航是什么意思