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How to write a simple online meeting management system through PHP

王林Original: 2023-09-24 11:57:161024browse

How to write a simple online conference management system through PHP

In today's information society, people increasingly need efficient and convenient conference management systems to improve Meeting efficiency. This article will introduce how to use PHP to write a simple online meeting management system and provide some specific code examples.

1. Project Overview

Our conference management system will have the following functions:

User registration and login: Users can register an account and log in to the system.
Create a meeting: Users can create a new meeting and fill in the relevant information of the meeting, such as meeting name, start time, end time, location, etc.
View conference list: Users can view the conference list that already exists in the system.
Participate in meetings: Users can choose to attend meetings that interest them.
Cancel meeting participation: Users can cancel meetings they have already participated in.

2. Database design

Before writing the code specifically, we first need to design a database table to store meeting information and user information. The following are the two tables we designed:

Meeting table (meeting):
- meeting_id: meeting ID
- meeting_name: meeting name
- start_time: meeting start time
- end_time: meeting end time
- location: meeting location
User table ( user):
- user_id: User ID
- username: Username
- password: Password

3. Specific code implementation

User registration and login

First, we create a registration page (register.php), which is used for user registration. The code is as follows:

<?php
  // 连接数据库
  $conn = mysqli_connect('localhost', '数据库用户名', '数据库密码', '数据库名称');
  
  if(isset($_POST['register'])){
    $username = $_POST['username'];
    $password = $_POST['password'];
    
    // 在此处对$username和$password进行合法性检查
    
    // 插入用户信息到数据库
    $query = "INSERT INTO user (username, password) VALUES ('$username', '$password')";
    mysqli_query($conn, $query);
    
    echo "注册成功！";
  }
?>

<!DOCTYPE html>
<html>
<head>
  <title>用户注册</title>
</head>
<body>
  <h2>用户注册</h2>
  <form method="post" action="register.php">
    <label for="username">用户名：</label>
    <input type="text" name="username" id="username" required><br><br>
    
    <label for="password">密码：</label>
    <input type="password" name="password" id="password" required><br><br>
    
    <input type="submit" name="register" value="注册">
  </form>
</body>
</html>

After the user successfully registers, we create a login page (login.php), which is used for user login. The code is as follows:

<?php
  // 连接数据库
  $conn = mysqli_connect('localhost', '数据库用户名', '数据库密码', '数据库名称');
  
  if(isset($_POST['login'])){
    $username = $_POST['username'];
    $password = $_POST['password'];
    
    // 在此处对$username和$password进行合法性检查
    
    // 查询用户信息
    $query = "SELECT * FROM user WHERE username='$username' AND password='$password'";
    $result = mysqli_query($conn, $query);
    
    if(mysqli_num_rows($result) == 1){
      // 登录成功
      echo "登录成功！";
      // 可以将用户信息存储到session中
    } else {
      // 登录失败
      echo "用户名或密码错误！";
    }
  }
?>

<!DOCTYPE html>
<html>
<head>
  <title>用户登录</title>
</head>
<body>
  <h2>用户登录</h2>
  <form method="post" action="login.php">
    <label for="username">用户名：</label>
    <input type="text" name="username" id="username" required><br><br>
    
    <label for="password">密码：</label>
    <input type="password" name="password" id="password" required><br><br>
    
    <input type="submit" name="login" value="登录">
  </form>
</body>
</html>

Create meeting

After the user successfully logs in, we create a page (create-meeting.php) for creating a meeting. The code is as follows:

<?php
  // 连接数据库
  $conn = mysqli_connect('localhost', '数据库用户名', '数据库密码', '数据库名称');
  
  if(isset($_POST['create'])){
    $meetingName = $_POST['meetingName'];
    $startTime = $_POST['startTime'];
    $endTime = $_POST['endTime'];
    $location = $_POST['location'];
    
    // 在此处对输入信息进行合法性检查
    
    // 插入会议信息到数据库
    $query = "INSERT INTO meeting (meeting_name, start_time, end_time, location) VALUES ('$meetingName', '$startTime', '$endTime', '$location')";
    mysqli_query($conn, $query);
    
    echo "会议创建成功！";
  }
?>

<!DOCTYPE html>
<html>
<head>
  <title>创建会议</title>
</head>
<body>
  <h2>创建会议</h2>
  <form method="post" action="create-meeting.php">
    <label for="meetingName">会议名称：</label>
    <input type="text" name="meetingName" id="meetingName" required><br><br>
    
    <label for="startTime">开始时间：</label>
    <input type="datetime-local" name="startTime" id="startTime" required><br><br>
    
    <label for="endTime">结束时间：</label>
    <input type="datetime-local" name="endTime" id="endTime" required><br><br>
    
    <label for="location">地点：</label>
    <input type="text" name="location" id="location" required><br><br>
    
    <input type="submit" name="create" value="创建">
  </form>
</body>
</html>

The above is the implementation of a simple online conference management system, written in PHP, and some code examples are provided. Of course, this is just a preliminary version and you can expand and optimize it according to actual needs. I hope this article can provide you with some reference and help, and I wish you can write a powerful conference management system!

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