Intégration des médias sociaux du système de blog implémenté en PHP

CREATE TABLE `articles` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `title` varchar(255) NOT NULL,
  `content` text NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `comments` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `article_id` int(11) NOT NULL,
  `content` text NOT NULL,
  PRIMARY KEY (`id`),
  FOREIGN KEY (`article_id`) REFERENCES `articles`(`id`) ON DELETE CASCADE
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

CREATE TABLE `users` (
  `id` int(11) NOT NULL AUTO_INCREMENT,
  `name` varchar(50) NOT NULL,
  `email` varchar(100) NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8;

<?php
// 连接到MySQL数据库
$servername = "localhost";
$username = "root";
$password = "password";
$dbname = "blog";

$conn = new mysqli($servername, $username, $password, $dbname);
if ($conn->connect_error) {
    die("连接数据库失败：" . $conn->connect_error);
}

// 获取博客文章列表
function getArticles() {
    global $conn;
    $sql = "SELECT * FROM articles";
    $result = $conn->query($sql);
    
    if ($result->num_rows > 0) {
        return $result->fetch_all(MYSQLI_ASSOC);
    } else {
        return [];
    }
}

// 创建新的博客文章
function createArticle($title, $content) {
    global $conn;
    $sql = "INSERT INTO articles (title, content) VALUES ('$title', '$content')";
    $conn->query($sql);
}

// 获取某篇博客文章的评论列表
function getComments($articleId) {
    global $conn;
    $sql = "SELECT * FROM comments WHERE article_id = $articleId";
    $result = $conn->query($sql);
    
    if ($result->num_rows > 0) {
        return $result->fetch_all(MYSQLI_ASSOC);
    } else {
        return [];
    }
}

// 创建新的评论
function createComment($articleId, $content) {
    global $conn;
    $sql = "INSERT INTO comments (article_id, content) VALUES ('$articleId', '$content')";
    $conn->query($sql);
}
?>

<!-- 在展示博客文章的页面中添加以下代码 -->
<?php
$articles = getArticles();
foreach ($articles as $article) {
    echo "<h2>{$article['title']}</h2>";
    echo "<p>{$article['content']}</p>";
    
    // 添加社交媒体分享按钮
    echo "<a href='https://twitter.com/intent/tweet?url=URL&text=TEXT'><img  src='path/to/twitter.png' alt="Intégration des médias sociaux du système de blog implémenté en PHP" ></a>";
    echo "<a href='https://www.facebook.com/sharer/sharer.php?u=URL'><img  src='path/to/facebook.png' alt="Intégration des médias sociaux du système de blog implémenté en PHP" ></a>";
    
    // 显示评论列表和表单
    $articleId = $article['id'];
    $comments = getComments($articleId);
    foreach ($comments as $comment) {
        echo "<p>{$comment['content']}</p>";
    }
    echo "<form action='create_comment.php' method='post'>";
    echo "<input type='hidden' name='article_id' value='$articleId'>";
    echo "<textarea name='content'></textarea>";
    echo "<input type='submit' value='发表评论'>";
    echo "</form>";
}
?>