phpcms 调用推荐文章

<?php
// 假设我们有一个文章数据库表 articles，包含 id, title, content 等字段

// 获取用户浏览过的文章 ID
$user_viewed_articles = [1, 2, 3];

// 获取所有文章的 ID 和内容
$sql = "SELECT id, content FROM articles";
$result = mysqli_query($conn, $sql);
$articles = [];
while ($row = mysqli_fetch_assoc($result)) {
    $articles[$row['id']] = $row['content'];
}

// 计算用户浏览过的文章的关键词频率
$keyword_frequency = [];
foreach ($user_viewed_articles as $article_id) {
    $content = $articles[$article_id];
    $words = explode(' ', $content);
    foreach ($words as $word) {
        if (!isset($keyword_frequency[$word])) {
            $keyword_frequency[$word] = 0;
        }
        $keyword_frequency[$word]++;
    }
}

// 根据关键词频率推荐文章
$recommended_articles = [];
foreach ($articles as $article_id => $content) {
    $words = explode(' ', $content);
    $score = 0;
    foreach ($words as $word) {
        if (isset($keyword_frequency[$word])) {
            $score += $keyword_frequency[$word];
        }
    }
    if (!in_array($article_id, $user_viewed_articles)) {
        $recommended_articles[$article_id] = $score;
    }
}

// 按分数排序并输出推荐文章
arsort($recommended_articles);
foreach (array_slice($recommended_articles, 0, 5) as $article_id => $score) {
    echo "推荐文章 ID: $article_id, 分数: $score<br>";
}
?>