使用PHP快手API接口，如何实现视频的分享和推广

<?php
// 用户授权
$client_id = 'your_client_id';  // 替换为你的client_id
$redirect_uri = 'your_redirect_uri';  // 替换为你的redirect_uri
$scope = 'operate_publish';  // 授权范围，这里设置为操作发布
$state = 'random_state';  // 随机生成的state，可以是任意字符串

$authorize_url = 'https://www.kuaishou.com/oauth2/authorize?client_id=' . $client_id . 
    '&redirect_uri=' . urlencode($redirect_uri) . '&response_type=code&scope=' . $scope . '&state=' . $state;

// 重定向至授权页面，用户登录并同意授权
header('Location: ' . $authorize_url);
?>

<?php
// 上传视频
$upload_url = 'https://api.kuaishou.com/rest/2.0/media/upload';

$access_token = 'your_access_token';  // 替换为授权令牌access_token
$video_file = 'path/to/video.mp4';  // 替换为真实视频文件路径

$ch = curl_init();
$cfile = curl_file_create($video_file);
$data = array('video' => $cfile);
curl_setopt($ch, CURLOPT_URL, $upload_url);
curl_setopt($ch, CURLOPT_POST, true);
curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization:' . $access_token));
$response = curl_exec($ch);
curl_close($ch);

$response_data = json_decode($response, true);
$video_id = $response_data['video_id'];
?>

<?php
// 获取视频信息
$video_info_url = 'https://api.kuaishou.com/rest/2.0/media/' . $video_id;

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $video_info_url);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Authorization:' . $access_token));
$response = curl_exec($ch);
curl_close($ch);

$video_info = json_decode($response, true);
$video_title = $video_info['caption'];
$cover_image = $video_info['cover_url'];
?>

<?php
// 分享视频
$share_url = 'https://live.kuaishou.com/video/' . $video_id;

echo '点击以下链接分享视频：<br>';
echo '<a href="' . $share_url . '">' . $share_url . '</a>';
?>