javascript - PHP 和 MySQL : Update not working with Foreach Loop

Question

我的 foreach 循环不适用于 mysql 中的 update 语句。不知道我做错了什么。这是我的 php 片段。

        foreach ($request['playlist_information'] as $playlist) {
        $playlistResult = "UPDATE video_playlists SET channel_id='".$playlist['channel_id']."', playlist_id='".$playlist['id']."', playlist_title='".$playlist['title']."', playlist_status='".$playlist['status']."', playlist_description='".$playlist['description']."', playlist_created='".$playlist['date_created']."'";
        $mysqli->query($playlistResult);
        var_dump($playlist['title']);
    }

我的请求来 self 的 javascript，如下所示:

        var param = {
    "channel_id": channelId,
    "video_id": videoId,
    "views": $scope.stats[0]['views'],
    "likes": $scope.stats[0]['likes'],
    "dislikes": $scope.stats[0]['dislikes'],
    "favorites": $scope.stats[0]['favorites'],
    "comments": $scope.stats[0]['comments'],
    "duration": $scope.stats[0]['duration'],
    "dimension": $scope.stats[0]['dimension'],
    "definition": $scope.stats[0]['definition'],
    "caption": $scope.stats[0]['caption'],
    "licensed_content": licensedContent,
    "upload_status": $scope.stats[0]['uploadStatus'],
    "privacy_status": $scope.stats[0]['privacyStatus'],
    "license": $scope.stats[0]['license'],
    "embeddable": embeddable,
    "public_stats_viewable": publicStatsViewable,
    "video_title": $scope.meta[0]['title'],
    "video_status": $scope.stats[0]['privacyStatus'],
    "video_description": $scope.meta[0]['description'],
    "video_tags": $scope.meta[0]['tags'],
    "playlist_information": {}
}



for (var i = 0; i < $scope.playlists.length; i++) {

    param["playlist_information"][i] = {
                    "channel_id": channelId,
                    "id": $scope.playlists[i]['id'],
                    "title": $scope.playlists[i]['title'],
                    "description": $scope.playlists[i]['description'],
                    "status": $scope.playlists[i]['status'],
                    "date_created": $scope.playlists[i]['datePublished']
    }

};

INSERT 工作正常，我可以在 php 部分没有 foreach 循环的情况下正常更新。我似乎无法找出问题所在。任何帮助表示赞赏。谢谢!

Answer 1

您的查询中的引号有问题:

$playlistResult = "更新 video_playlists SET channel_id='".$playlist['channel_id']."', playlist_id='".$playlist['id']."', playlist_title ='".$playlist['title']."', playlist_status='".$playlist['status']."', playlist_description='".$playlist['description']."', playlist_created=' ".$playlist['date_created']."'";

您可能会遇到语法错误: 检查粗体文本:'".$playlist['channel_id']."'

  $playlistResult = "UPDATE video_playlists SET channel_id=\'".$playlist['channel_id']."\', playlist_id=\'".$playlist['id']."\', playlist_title=\'".$playlist['title']."\', playlist_status=\'".$playlist['status']."\', playlist_description=\'".$playlist['description']."\', playlist_created=\'".$playlist['date_created']."\'";

我希望这对您有所帮助，并在必要时检查您的更新情况。