Table of Contents
PHP+MYSQL会员系统的开发实例教程,mysql实例教程
php+mysql开发事例教程代码新闻系统代码
PHP+MySql开发实例教程的源代码
Home php教程 php手册 PHP+MYSQL会员系统的开发实例教程,mysql实例教程

PHP+MYSQL会员系统的开发实例教程,mysql实例教程

Jun 13, 2016 am 09:26 AM
mysql php Member system

PHP+MYSQL会员系统的开发实例教程,mysql实例教程

本文通过一个简单的实例完成了完整的PHP+MySQL会员系统功能。是非常实用的一个应用。具体实现步骤如下:

一、会员系统的原理:
 
  登陆-->判断-->保持状态(Cookie或Session)-->验证状态及其权限

二、会员系统的安全:

1、学会使用常量提高md5安全性
2、Cookie/ Session 少用明文信息
3、Session安全性要大于Cookie
4、使用Cookie/ Session读取信息 尽量增加判断信息
5、Cookie/ Session内容要精简
6、对于错误信息及时销毁Cookie/ Session

三、数据库test,表user_list,及其字段

  uid     m_id     username     password
  1       1        admin        291760f98414679e3fd3f9051b19b6f7
  2       2        admin2       895785cfa5d8157f4d33c58ae0f55123

password:分别为md5(admintest100)、md5(admin2test100)即密码是与常量test100绑定后,再经过加密储存到数据库中的,这一步可以在注册时设置。

四、配置页面m_config.php:

<&#63;php
 session_start();
 //数据库连接
 $conn=mysql_connect('localhost','root','');
 mysql_select_db('test',$conn);
 //定义常量
 define(ALL_ps,"test100");
 //查看登录状态与权限
 function user_shell($uid,$shell,$m_id){
   $sql="select * from user_list where `uid`='$uid'"; 
   $query=mysql_query($sql);
   $us=is_array($row=mysql_fetch_array($query));
   $shell=$us &#63; $shell==md5($row[username].$row[password].ALL_PS):FALSE;
   if($shell){
     if($row[m_id]<=$m_id){//$row[m_id]越小权限越高,为1时权限最高
       return $row;
     }else{
       echo "你的权限不足,不能查看该页面";
       exit(); 
     }
   }else{
     echo "登录后才能查看该页";
     exit(); 
   } 
 }
 //设置登录超时
 function user_mktime($onlinetime){
    $new_time=mktime();
    echo $new_time-$onlinetime."秒未操作该页面"."<br>";
    if($new_time-$onlinetime>'10'){//设置超时时间为10秒,测试用
      echo "登录超时,请重新登录";
      exit();
      session_destroy();
    }else{
      $_SESSION[times]=mktime();
    }
 }
&#63;> 
Copy after login

五、登录页面m_user.php:

<&#63;php
 include("m_config.php");
 //echo md5("admin2".ALL_PS);
 if($_POST[submit]){
  $username=str_replace(" ","","$_POST[username]");
  $sql="select * from user_list where `username`='$username'"; 
  $query=mysql_query($sql);
  $us=is_array($row=mysql_fetch_array($query));
  $ps=$us &#63; md5($_POST[password].ALL_PS)==$row[password] : FALSE;
  if($ps){
    $_SESSION[uid]=$row[uid];
    $_SESSION[user_shell]=md5($row[username].$row[password].ALL_PS);
    $_SESSION[times]=mktime();//取得登录时忘该的时间
    echo "登录成功";
  }else{
    echo "用户名或密码错误";
    session_destroy();//密码错误时消除所有的session
  }
 }
&#63;>
<form action="" method="post">
 用户名:<input name="username" type="text" /><br />
 用户名:<input name="password" type="password" /><br />
 验证码:<input name="code" type="code" />5213<br /><br />
 <input name="submit" type="submit" value="登录" />
</form>

Copy after login

六、设置了权限及超时的页面m_zhuangtai.php:

<&#63;php
 include("m_config.php"); 
 $arr=user_shell($_SESSION[uid],$_SESSION[user_shell],1);//设置该页面只有权限为1时即最高权限的才能访问
 
 user_mktime($_SESSION[times]);//判断是否超时10秒
 
 //echo $_SESSION[times]."<br>";//登录时该的时间
 //echo mktime()."<br>";//当前日期
 //echo $arr[username]."<br>";
 //echo $arr[uid]."<br>";
 
&#63;>
Copy after login

有权限方能查看的内容

七、测试结果:
 
1、用sss,sssssss登录,提示:用户名或密码错误。查看m_zhuangtai.php,提示:登录后才能查看该页。
2、用admin admin登录后,因为权限为1,所以可以查看m_zhuangtai.php页面的内容。
3、用admin admin登录后,因为权限为1,所以可以查看m_zhuangtai.php页面的内容,但10秒后再刷新,提示:X秒未操作该页面 登录超时,请重新登录。
4、用admin2 admin2登录后,因为权限为2,所以无法查看m_zhuangtai.php页面的内容,提示:你的权限不足,不能查看该页面。

希望本文所述实例对大家PHP程序开发有所帮助。

php+mysql开发事例教程代码新闻系统代码

原书没有带光盘什么的,可以考虑联系一下问作者要,看能不能给你。如果实在不行,可以照着书上的内容做一下,收获会不小,有问题,可以随时来问我。
 

PHP+MySql开发实例教程的源代码

网上很多,你需要的是框架还是?
 

Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

Video Face Swap

Video Face Swap

Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

PHP and Python: Comparing Two Popular Programming Languages PHP and Python: Comparing Two Popular Programming Languages Apr 14, 2025 am 12:13 AM

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP's Current Status: A Look at Web Development Trends PHP's Current Status: A Look at Web Development Trends Apr 13, 2025 am 12:20 AM

PHP remains important in modern web development, especially in content management and e-commerce platforms. 1) PHP has a rich ecosystem and strong framework support, such as Laravel and Symfony. 2) Performance optimization can be achieved through OPcache and Nginx. 3) PHP8.0 introduces JIT compiler to improve performance. 4) Cloud-native applications are deployed through Docker and Kubernetes to improve flexibility and scalability.

PHP: A Key Language for Web Development PHP: A Key Language for Web Development Apr 13, 2025 am 12:08 AM

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP vs. Other Languages: A Comparison PHP vs. Other Languages: A Comparison Apr 13, 2025 am 12:19 AM

PHP is suitable for web development, especially in rapid development and processing dynamic content, but is not good at data science and enterprise-level applications. Compared with Python, PHP has more advantages in web development, but is not as good as Python in the field of data science; compared with Java, PHP performs worse in enterprise-level applications, but is more flexible in web development; compared with JavaScript, PHP is more concise in back-end development, but is not as good as JavaScript in front-end development.

MySQL's Place: Databases and Programming MySQL's Place: Databases and Programming Apr 13, 2025 am 12:18 AM

MySQL's position in databases and programming is very important. It is an open source relational database management system that is widely used in various application scenarios. 1) MySQL provides efficient data storage, organization and retrieval functions, supporting Web, mobile and enterprise-level systems. 2) It uses a client-server architecture, supports multiple storage engines and index optimization. 3) Basic usages include creating tables and inserting data, and advanced usages involve multi-table JOINs and complex queries. 4) Frequently asked questions such as SQL syntax errors and performance issues can be debugged through the EXPLAIN command and slow query log. 5) Performance optimization methods include rational use of indexes, optimized query and use of caches. Best practices include using transactions and PreparedStatemen

The Enduring Relevance of PHP: Is It Still Alive? The Enduring Relevance of PHP: Is It Still Alive? Apr 14, 2025 am 12:12 AM

PHP is still dynamic and still occupies an important position in the field of modern programming. 1) PHP's simplicity and powerful community support make it widely used in web development; 2) Its flexibility and stability make it outstanding in handling web forms, database operations and file processing; 3) PHP is constantly evolving and optimizing, suitable for beginners and experienced developers.

PHP: The Foundation of Many Websites PHP: The Foundation of Many Websites Apr 13, 2025 am 12:07 AM

The reasons why PHP is the preferred technology stack for many websites include its ease of use, strong community support, and widespread use. 1) Easy to learn and use, suitable for beginners. 2) Have a huge developer community and rich resources. 3) Widely used in WordPress, Drupal and other platforms. 4) Integrate tightly with web servers to simplify development deployment.

PHP vs. Python: Core Features and Functionality PHP vs. Python: Core Features and Functionality Apr 13, 2025 am 12:16 AM

PHP and Python each have their own advantages and are suitable for different scenarios. 1.PHP is suitable for web development and provides built-in web servers and rich function libraries. 2. Python is suitable for data science and machine learning, with concise syntax and a powerful standard library. When choosing, it should be decided based on project requirements.

See all articles