4
我知道我可以通過播放列表來循環播放列表來比較播放列表是否存在於YouTube上，但是這是兩個電話（下面的例子），因爲我已經知道播放列表ID，我應該只能打一個電話。通過播放列表YouTube API v3：如何從PlaylistItems中返回404（未找到）錯誤？
兩個調用到YouTube環路（不是我想要做的方式）：
# Playlist ID from URL
$playlist=$_GET['playlist'];
# Playlists from YoUtube
$playlists=$yt->PlaylistsListFeed();
# Loop through the playlists.
foreach($playlists as $playlist_feed)
{
if($playlist_feed['id']==$playlist)
{
# This is a playlist
$this->setIsPlaylist(TRUE);
# Assign the Playlist Items to a variable.
$video_search=$yt->PlaylistItems($playlist_feed['id']);
break;
}
}
# If $video_search is not set then playlist does not exist.
if(!isset($video_search))
{
return $display='That playlist doesn\'t exist. Please choose another.';
}
我的代碼爲單電工作，但我無法弄清楚如何獲得如果播放列表ID不存在，則返回404錯誤（下面的YouTube結果）。
YouTube的方法（PlaylistItems）：
/**
* PlaylistItems
*
* Retrieves videos from a playlist.
*
* @param int $playlist_id The ID of the playlist.
* @param string $part The part parameter specifies a comma-separated list of
* one or more playlistItem resource properties that the API
* response will include. The part names that you can include
* in the parameter value are id, snippet, and contentDetails.
* @access public
*/
public function PlaylistItems($playlist_id, $part='snippet')
{
# Set the Database instance to a variable.
$doc=Document::getInstance();
try
{
# Bring $youtube_service into the scope
global $youtube_service;
$playlistsItems_optParams=array('maxResults' => 50, 'playlistId' => $playlist_id);
$playlistsItems=$youtube_service->playlistItems->listPlaylistItems($part, $playlistsItems_optParams);
$new_array=$this->rebuildArray($playlistsItems, TRUE);
# Instantiate a new Utility object.
$utility=new Utility();
# Sort the playlist array by date.
$items=$utility->sortByDate($new_array, 'publishedAt');
return $items;
}
catch(Exception $e)
{
# Print Results (below)
print_r($e); exit;
if($e->getCode()==404)
{
$doc->setError('That playlist doesn\'t exist. Please choose another.');
}
}
} #==== End -- PlaylistItems
單呼代碼：
# Playlist ID from URL
$playlist=$_GET['playlist'];
# Assign the Playlist Items to a variable.
$video_search=$yt->PlaylistItems($playlist);
返回從PlaylistItems方法
Google_ServiceException Object
(
[errors:protected] => Array
(
[0] => Array
(
[domain] => youtube.playlistItem
[reason] => playlistNotFound
[message] => Not Found
[locationType] => parameter
[location] => playlistId
)
)
[message:protected] => Error calling GET https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=50&playlistId=PLD2D6E64D9CD49E1&key=AIzaSyDVGJhk7DfKKJAaciX14aqyw_YbPaT4fp4: (404) Not Found
[string:Exception:private] =>
[code:protected] => 404
[file:protected] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Social/Google/io/Google_REST.php
[line:protected] => 66
[trace:Exception:private] => Array
(
[0] => Array
(
[file] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Social/Google/io/Google_REST.php
[line] => 36
[function] => decodeHttpResponse
[class] => Google_REST
[type] => ::
[args] => Array
(
[0] => Google_HttpRequest Object
(
[batchHeaders:Google_HttpRequest:private] => Array
(
[Content-Type] => application/http
[Content-Transfer-Encoding] => binary
[MIME-Version] => 1.0
[Content-Length] =>
)
[url:protected] => https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=50&playlistId=PLD2D6E64D9CD49E1&key=AIzaSyDVGJhk7DfKKJAaciX14aqyw_YbPaT4fp4
[requestMethod:protected] => GET
[requestHeaders:protected] => Array
(
)
[postBody:protected] =>
[userAgent:protected] => google-api-php-client/0.6.0
[responseHttpCode:protected] => 404
[responseHeaders:protected] => Array
(
[content-type] => application/json; charset=UTF-8
[date] => Thu, 18 Jul 2013 05:11:11 GMT
[expires] => Thu, 18 Jul 2013 05:11:11 GMT
[cache-control] => private, max-age=0
[x-content-type-options] => nosniff
[x-frame-options] => SAMEORIGIN
[x-xss-protection] => 1; mode=block
[server] => GSE
[transfer-encoding] => chunked
)
[responseBody:protected] => {
"error": {
"errors": [
{
"domain": "youtube.playlistItem",
"reason": "playlistNotFound",
"message": "Not Found",
"locationType": "parameter",
"location": "playlistId"
}
],
"code": 404,
"message": "Not Found"
}
}
[accessKey] =>
)
)
)
[1] => Array
(
[file] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Social/Google/service/Google_ServiceResource.php
[line] => 186
[function] => execute
[class] => Google_REST
[type] => ::
[args] => Array
(
[0] => Google_HttpRequest Object
(
[batchHeaders:Google_HttpRequest:private] => Array
(
[Content-Type] => application/http
[Content-Transfer-Encoding] => binary
[MIME-Version] => 1.0
[Content-Length] =>
)
[url:protected] => https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&maxResults=50&playlistId=PLD2D6E64D9CD49E1&key=AIzaSyDVGJhk7DfKKJAaciX14aqyw_YbPaT4fp4
[requestMethod:protected] => GET
[requestHeaders:protected] => Array
(
)
[postBody:protected] =>
[userAgent:protected] => google-api-php-client/0.6.0
[responseHttpCode:protected] => 404
[responseHeaders:protected] => Array
(
[content-type] => application/json; charset=UTF-8
[date] => Thu, 18 Jul 2013 05:11:11 GMT
[expires] => Thu, 18 Jul 2013 05:11:11 GMT
[cache-control] => private, max-age=0
[x-content-type-options] => nosniff
[x-frame-options] => SAMEORIGIN
[x-xss-protection] => 1; mode=block
[server] => GSE
[transfer-encoding] => chunked
)
[responseBody:protected] => {
"error": {
"errors": [
{
"domain": "youtube.playlistItem",
"reason": "playlistNotFound",
"message": "Not Found",
"locationType": "parameter",
"location": "playlistId"
}
],
"code": 404,
"message": "Not Found"
}
}
[accessKey] =>
)
)
)
[2] => Array
(
[file] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Social/Google/contrib/Google_YoutubeService.php
[line] => 425
[function] => __call
[class] => Google_ServiceResource
[type] => ->
[args] => Array
(
[0] => list
[1] => Array
(
[0] => Array
(
[part] => snippet
[maxResults] => 50
[playlistId] => PLD2D6E64D9CD49E1
)
)
)
)
[3] => Array
(
[file] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Media/YouTube.php
[line] => 412
[function] => listPlaylistItems
[class] => Google_PlaylistItemsServiceResource
[type] => ->
[args] => Array
(
[0] => snippet
[1] => Array
(
[maxResults] => 50
[playlistId] => PLD2D6E64D9CD49E1
)
)
)
[4] => Array
(
[file] => /Volumes/Coding/WebDev/CWIS/cwis.org/application/modules/Media/Video.php
[line] => 1130
[function] => PlaylistItems
[class] => YouTube
[type] => ->
[args] => Array
(
[0] => PLD2D6E64D9CD49E1
)
)
[5] => Array
(
[file] => /Volumes/Coding/WebDev/CWIS/cwis.org/public/media/video/index.php
[line] => 59
[function] => displayVideoFeed
[class] => Video
[type] => ->
[args] => Array
(
)
)
)
[previous:Exception:private] =>
)
正如你一個看到的一切要麼是protected或private所以我怎麼想的知道是否有錯誤？