How to implement a simple news release system using PHP

How to use PHP to implement a simple news release system

With the popularity of the Internet, news release systems have become a common need. This article will introduce how to use the PHP programming language and MySQL database to build a simple news release system, and attach code examples.

1. Create database

First, we need to create a MySQL database to store news data. Create a database named "news" in MySQL and create a table named "news_articles" in the database. The table structure is as follows:

CREATE TABLE news_articles (
id INT AUTO_INCREMENT PRIMARY KEY ,
title VARCHAR(255) NOT NULL,
content TEXT,
author VARCHAR(100) NOT NULL,
created_at TIMESTAMP DEFAULT CURRENT_TIMESTAMP
);

2. Back-end code: Add news

Next, we write a PHP script to handle the function of adding news. Create a file called "add_news.php" and add the following code in it:

if ($_SERVER["REQUEST_METHOD"] == "POST") {

  $title = $_POST["title"];
  $content = $_POST["content"];
  $author = $_POST["author"];

  // 连接到数据库
  $conn = mysqli_connect("localhost", "root", "", "news");
  if ($conn === false) {
     die("连接数据库失败：" . mysqli_connect_error());
  }

  // 执行插入数据的SQL语句
  $sql = "INSERT INTO news_articles (title, content, author) VALUES ('$title', '$content', '$author')";
  if (mysqli_query($conn, $sql)) {
     echo "新闻添加成功！";
  } else {
     echo "添加新闻失败：" . mysqli_error($conn);
  }

  // 关闭数据库连接
  mysqli_close($conn);

}
?>

3. Front-end code: Add news

Now, we create a file called "news_form.html", And add the following code there:

Add News

  <label for="title">标题：</label><br>
  <input type="text" id="title" name="title" required><br><br>
  <label for="content">内容：</label><br>
  <textarea id="content" name="content" required></textarea><br><br>
  <label for="author">作者：</label><br>
  <input type="text" id="author" name="author" required><br><br>
  <input type="submit" value="添加新闻">

4. Back-end code: Display the news list

Below , we write a PHP script to handle the function of displaying the news list. Create a file called "list_news.php" and add the following code in it:

// Connect to the database
$conn = mysqli_connect("localhost", " root", "", "news");
if ($conn === false) {

  die("连接数据库失败：" . mysqli_connect_error());

}

// Execute the SQL statement to query the data
$ sql = "SELECT * FROM news_articles";
$result = mysqli_query($conn, $sql);

// Display news list
if (mysqli_num_rows($result) > 0) {

  while ($row = mysqli_fetch_assoc($result)) {
     echo "<h3 id="row-title">{$row['title']}</h3>";
     echo "<p>{$row['content']}</p>";
     echo "<p>作者：{$row['author']}</p>";
     echo "<hr>";
  }

} else {

  echo "暂无新闻";

}

// Close the database connection
mysqli_close($conn);
?>

5. Front-end code: Displaying the news list

Finally, we create a file called "news_list.php" and add the following code in it:

News List

Visited by "news_list.php" file can display the news list.

The above are the steps and code examples to implement a simple news release system using PHP. With this example, you can learn how to build a simple web application using PHP and MySQL. Of course, this is just a basic version and you can extend and improve it according to your actual needs. Hope this article helps you!

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