使用foreach作为多个变量？

Question

我正在尝试使用 API v3 获取 YouTube 缩略图和视频 ID，并将它们回显到 HTML 中，但是我需要同时回显两个变量。目前我有以下内容：

<?php
$url = 'https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=12&playlistId=UUDWdi7vjr3ac_z_VMMeiL_Q&key=*************************';
$data = file_get_contents($url);
if ((preg_match_all("/\"videoId\":\s*\"(.+)\"/", $data, $video_get) ) && (preg_match_all("/\"title\":\s*\"(.+)\"/", $data, $title_get) ) ) {
    foreach (($video_get[1] as $videoid) && foreach ($title_get[1] as $title ) ){
        echo ("<div id=\"video-thumb\" class=\"col-sm-6\"><img id=\"video-thumb-320180\" src=\"https://i.ytimg.com/vi/'.$videoid.'/mqdefault.jpg\"><div class=\"video-hover\"><img class=\"play-hover\" src=\"images/play.png\"></div><h2 class=\"video-title\"><i><a href=\"https://youtube.com/watch?v='.$videoid.'\">'.$title.'</a></h2></i></div>");
        }
    }
else {
    echo ("Error fetching uploads!")
}
?>

但是，在尝试了这个之后，我似乎无法将 foreach 用作 && foreach as。这里有什么解决办法？

Answer 1

不知道你为什么要尝试preg_match() ...但该数据是json，只需json_decode()就可以了。

$url = 'https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=12&playlistId=UUDWdi7vjr3ac_z_VMMeiL_Q&key=AIzaSyBYG6nKkdddYT2NXg987kljPrKqsCVXcNQ';
/** data is in an array **/
$data = json_decode(file_get_contents($url), true);
foreach($data['items'] as $row) {
    echo ("
    <div id=\"video-thumb\" class=\"col-sm-6\">
        <img id=\"video-thumb-320180\" src=\"https://i.ytimg.com/vi/".$row['snippet']['resourceId']['videoId']."/mqdefault.jpg\">
        <div class=\"video-hover\">
            <img class=\"play-hover\" src=\"images/play.png\">
        </div>
        <h2 class=\"video-title\">
            <i><a href=\"https://youtube.com/watch?v=".$row['snippet']['resourceId']['videoId']."\">" . $row['snippet']['title']."</a></i>
        </h2>
    </div>");
}

响应（来自文档）

{
  "kind": "youtube#playlistItemListResponse",
  "etag": etag,
  "nextPageToken": string,
  "prevPageToken": string,
  "pageInfo": {
    "totalResults": integer,
    "resultsPerPage": integer
  },
  "items": [
    {
      "kind": "youtube#playlistItem",
      "etag": etag,
      "id": string,
      "snippet": {
        "publishedAt": datetime,
        "channelId": string,
        "title": string,
        "description": string,
        "thumbnails": {
          (key): {
            "url": string,
            "width": unsigned integer,
            "height": unsigned integer
          }
        },
        "channelTitle": string,
        "playlistId": string,
        "position": unsigned integer,
        "resourceId": {
          "kind": string,
          "videoId": string,
        }
      },
      "contentDetails": {
        "videoId": string,
        "startAt": string,
        "endAt": string,
        "note": string
      },
      "status": {
        "privacyStatus": string
      }
    }
  ]
}