php+mysql实现用户注册登陆的方法
本文实例讲述了php+mysql实现用户注册登陆的方法。分享给大家供大家参考。具体分析如下：
这是一款利用php与mysql数据库实现的用户注册与登录代码,功能也是比较简单实用的用户注册程序,同时也加了用户登录时验证码程序,这样做就安全了很多,代码如下:
复制代码 代码如下:
<!doctype html public "-//w3c//dtd xhtml 1.0 transitional//en" "http://www.w3.org/tr/xhtml1/dtd/xhtml1-transitional.dtd">
<html xmlns="//www.jb51.net/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312" />
<title>在后台增加用户</title>
</head>
<body>
<?php
require_once("config.php");
if(isset($_post["submit2"])){
mysql_select_db('a0807000225'); //这个是数据库表
$author=$_session["user_name"];
define(all_ps,"jinquan");
echo $username=$_post["username"];
echo $password=md5($password=$_post["password"].all_ps);
echo "</br>";
if($username){
if($password){
$str = "insert into `dx_user_list` ( `uid` , `m_id` , `username` , `password` ) values (ascii( null ) , '1', '$username', '$password');";
$rs=mysql_query($str,$conn);
mysql_close($conn);
}
if($rs){
echo"<script>alert('新增成功');location.href='yonghuzc.php'</script>";
}else{
echo"<script>alert('新增失败');location.href=''yonghuzc.php'</script>";
}
}
}
?>
<html xmlns="//www.jb51.net/1999/xhtml">
<head>
<meta http-equiv="content-type" content="text/html; charset=gb2312" />
<title>在后台增加用户</title>
</head>
<body>
<?php
require_once("config.php");
if(isset($_post["submit2"])){
mysql_select_db('a0807000225'); //这个是数据库表
$author=$_session["user_name"];
define(all_ps,"jinquan");
echo $username=$_post["username"];
echo $password=md5($password=$_post["password"].all_ps);
echo "</br>";
if($username){
if($password){
$str = "insert into `dx_user_list` ( `uid` , `m_id` , `username` , `password` ) values (ascii( null ) , '1', '$username', '$password');";
$rs=mysql_query($str,$conn);
mysql_close($conn);
}
if($rs){
echo"<script>alert('新增成功');location.href='yonghuzc.php'</script>";
}else{
echo"<script>alert('新增失败');location.href=''yonghuzc.php'</script>";
}
}
}
?>
希望本文所述对大家的php程序设计有所帮助。