PHP开发微信公众号：如何实现文章推荐功能

$access_token = 'your_access_token';
$openid = 'user_openid';

$url = "https://api.weixin.qq.com/datacube/getarticletotal?access_token={$access_token}";

$data = array(
    'begin_date' => '2021-01-01',
    'end_date' => '2021-01-31',
    'openid' => $openid
);

$json_data = json_encode($data);

$options = array(
    'http' => array(
        'method' => 'POST',
        'header' => 'Content-type: application/json',
        'content' => $json_data
    )
);

$context = stream_context_create($options);
$result = file_get_contents($url, false, $context);
$read_data = json_decode($result, true);

foreach ($read_data['list'] as $item) {
    $title = $item['title'];
    $author = $item['author'];
    $read_time = $item['int_time'];
    // 处理阅读记录，保存到数据库或其他存储方式
}

// 从数据库中获取用户的历史阅读记录
$history_records = get_user_history_records($openid);

// 统计用户经常阅读的文章类型
$article_types = array();
foreach ($history_records as $record) {
    $type = $record['type'];
    if (isset($article_types[$type])) {
        $article_types[$type] += 1;
    } else {
        $article_types[$type] = 1;
    }
}

// 排序文章类型，取兴趣最高的几个作为推荐依据
arsort($article_types);
$interest_types = array_keys($article_types);

// 推荐文章，可以从数据库中取出与用户兴趣类型相关的文章列表
$recommend_articles = get_recommend_articles($interest_types); 

// 输出推荐文章
foreach ($recommend_articles as $article) {
    $title = $article['title'];
    $author = $article['author'];
    $content = $article['content'];
    // 输出推荐文章的标题、作者等信息
}

$template_data = array(
    'touser' => $openid,
    'template_id' => 'your_template_id',
    'data' => array(
        'title' => array(
            'value' => $title,
            'color' => '#173177'
        ),
        'author' => array(
            'value' => $author,
            'color' => '#173177'
        ),
        'content' => array(
            'value' => $content,
            'color' => '#173177'
        )
    )
);

$template_url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token={$access_token}";

$options = array(
    'http' => array(
        'method' => 'POST',
        'header' => 'Content-type: application/json',
        'content' => json_encode($template_data)
    )
);

$context = stream_context_create($options);
$result = file_get_contents($template_url, false, $context);