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|---|
| <?php |
| |
| // ViaThinkSoft YouTube Downloader Functions 2.1 |
| // Revision: 2018-05-21 |
| // Author: Daniel Marschall <www.daniel-marschall.de> |
| // Licensed under the terms of GPLv3 |
| |
| // Get API key: https://console.developers.google.com/apis/credentials |
| // Test API here: https://developers.google.com/apis-explorer/?hl=de#p/youtube/v3/youtube.playlistItems.list |
| |
| $yt_apikey = null; |
| $yt_apikey_callback = null; |
| |
| function yt_set_apikey($apikey) { |
| global $yt_apikey; |
| $yt_apikey = $apikey; |
| } |
| |
| function yt_set_apikey_callback($apikey_callback) { |
| global $yt_apikey_callback; |
| $yt_apikey_callback = $apikey_callback; |
| } |
| |
| function yt_get_apikey() { |
| global $yt_apikey, $yt_apikey_callback; |
| |
| if (!empty($yt_apikey_callback)) { |
| $apikey = call_user_func($yt_apikey_callback); |
| if (!yt_check_apikey_syntax($apikey)) throw new Exception("Invalid API key '$apikey'"); |
| } else if (!empty($yt_apikey)) { |
| $apikey = $yt_apikey; |
| if (!yt_check_apikey_syntax($apikey)) throw new Exception("Invalid API key '$apikey'"); |
| } else { |
| throw new Exception("This function requires a YouTube API key.\n"); |
| } |
| |
| return $apikey; |
| } |
| |
| function yt_playlist_items($playlist_id, $maxresults=-1) { |
| $out = array(); |
| |
| $next_page_token = ''; |
| |
| do { |
| $cont = file_get_contents('https://www.googleapis.com/youtube/v3/playlistItems?part=snippet&playlistId='.urlencode($playlist_id).'&maxResults=50'.(($next_page_token!='') ? '&pageToken='.urlencode($next_page_token) : '').'&key='.urlencode(yt_get_apikey())); |
| if (!$cont) return false; |
| |
| $obj = json_decode($cont, true); |
| if (!$obj) return false; |
| |
| foreach ($obj['items'] as $item) { |
| if ($item['snippet']['resourceId']['kind'] == 'youtube#video') { |
| $title = $item['snippet']['title']; |
| $video_id = $item['snippet']['resourceId']['videoId']; |
| $out[] = array($video_id, $title); |
| if (($maxresults != -1) && ($maxresults == count($out))) return $out; |
| } |
| } |
| |
| $next_page_token = isset($obj['nextPageToken']) ? $obj['nextPageToken'] : ''; |
| } while ($next_page_token != ''); |
| |
| return $out; |
| } |
| |
| function yt_get_channel_id($username) { |
| $cont = file_get_contents('https://www.googleapis.com/youtube/v3/channels?key='.urlencode(yt_get_apikey()).'&forUsername='.urlencode($username).'&part=id'); |
| if (!$cont) return false; |
| |
| $obj = json_decode($cont, true); |
| if (!$obj) return false; |
| |
| foreach ($obj['items'] as $item) { |
| if ($item['kind'] == 'youtube#channel') { |
| return $item['id']; |
| } |
| } |
| } |
| |
| function yt_get_channel_id_and_stats($username) { |
| $cont = file_get_contents('https://www.googleapis.com/youtube/v3/channels?key='.urlencode(yt_get_apikey()).'&forUsername='.urlencode($username).'&part=id,statistics'); |
| if (!$cont) return false; |
| |
| $obj = json_decode($cont, true); |
| if (!$obj) return false; |
| |
| foreach ($obj['items'] as $item) { |
| if ($item['kind'] == 'youtube#channel') { |
| return array($item['id'], $item['statistics']); |
| } |
| } |
| } |
| |
| function yt_get_channel_stats($channel_id) { |
| $cont = file_get_contents('https://www.googleapis.com/youtube/v3/channels?key='.urlencode(yt_get_apikey()).'&id='.urlencode($channel_id).'&part=statistics'); |
| if (!$cont) return false; |
| |
| $obj = json_decode($cont, true); |
| if (!$obj) return false; |
| |
| foreach ($obj['items'] as $item) { |
| if ($item['kind'] == 'youtube#channel') { |
| return $item['statistics']; |
| } |
| } |
| } |
| |
| function yt_get_playlist_stats($playlist_id) { |
| $cont = file_get_contents('https://www.googleapis.com/youtube/v3/playlists?part=contentDetails&id='.urlencode($playlist_id).'&key='.urlencode(yt_get_apikey())); |
| if (!$cont) return false; |
| |
| $obj = json_decode($cont, true); |
| if (!$obj) return false; |
| |
| foreach ($obj['items'] as $item) { |
| if ($item['kind'] == 'youtube#playlist') { |
| return $item['contentDetails']; |
| } |
| } |
| } |
| |
| function yt_channel_items($channel_id, $searchterms='', $maxresults=-1) { |
| $out = array(); |
| |
| $next_page_token = ''; |
| |
| do { |
| $cont = file_get_contents('https://www.googleapis.com/youtube/v3/search?part=snippet&channelId='.urlencode($channel_id).(($searchterms!='') ? '&q='.urlencode($searchterms) : '').'&maxResults=50'.(($next_page_token!='') ? '&pageToken='.urlencode($next_page_token) : '').'&key='.urlencode(yt_get_apikey())); |
| if (!$cont) return false; |
| |
| $obj = json_decode($cont, true); |
| if (!$obj) return false; |
| |
| foreach ($obj['items'] as $item) { |
| if ($item['id']['kind'] == 'youtube#video') { |
| $title = $item['snippet']['title']; |
| $video_id = $item['id']['videoId']; |
| $out[] = array($video_id, $title); |
| if (($maxresults != -1) && ($maxresults == count($out))) return $out; |
| } |
| } |
| |
| $next_page_token = isset($obj['nextPageToken']) ? $obj['nextPageToken'] : ''; |
| } while ($next_page_token != ''); |
| |
| return $out; |
| } |
| |
| // Acceptable order values are: date, rating, relevance(default), title, videoCount, viewCount |
| function yt_search_items($searchterms, $order='', $maxresults=-1) { |
| $out = array(); |
| |
| $next_page_token = ''; |
| |
| do { |
| $cont = file_get_contents('https://www.googleapis.com/youtube/v3/search?part=snippet&q='.urlencode($searchterms).(($order!='') ? '&order='.urlencode($order) : '').'&maxResults=50'.(($next_page_token!='') ? '&pageToken='.urlencode($next_page_token) : '').'&key='.urlencode(yt_get_apikey())); |
| if (!$cont) return false; |
| |
| $obj = json_decode($cont, true); |
| if (!$obj) return false; |
| |
| foreach ($obj['items'] as $item) { |
| if ($item['id']['kind'] == 'youtube#video') { |
| $title = $item['snippet']['title']; |
| $video_id = $item['id']['videoId']; |
| $out[] = array($video_id, $title); |
| if (($maxresults != -1) && ($maxresults == count($out))) return $out; |
| } |
| } |
| |
| $next_page_token = isset($obj['nextPageToken']) ? $obj['nextPageToken'] : ''; |
| } while ($next_page_token != ''); |
| |
| return $out; |
| } |
| |
| function getVideoIDFromURL($url) { |
| // Extract video ID from the URL |
| // TODO: are there more formats? |
| |
| $vid = false; |
| |
| # Usual format |
| if (($vid === false) && (preg_match("@https{0,1}://(www\\.|)youtube\\.com/watch(.*)(&|\\?)v=(.+)&@ismU", $url.'&', $m))) { |
| $vid = $m[4]; |
| } |
| |
| # Short format |
| if (($vid === false) && (preg_match("@https{0,1}://(www\\.|)youtu\\.be/(.+)\$@ismU", $url, $m))) { |
| $vid = $m[2]; |
| } |
| |
| return $vid; |
| } |
| |
| function getPlaylistIDFromURL($url) { |
| $pid = false; |
| |
| # Usual format |
| if (($pid === false) && (preg_match("@https{0,1}://(www\\.|)youtube\\.com/(.*)(&|\\?)list=(.+)&@ismU", $url.'&', $m))) { |
| $pid = $m[4]; |
| } |
| |
| return $pid; |
| } |
| |
| function yt_check_apikey_syntax($apikey) { |
| return preg_match('@^[a-zA-Z0-9]{39}$@', $apikey); |
| } |
| |
| function yt_check_video_id($video_id) { |
| return preg_match('@^[a-zA-Z0-9\-_]{11}$@', $video_id); |
| } |
| |
| // Examples: |
| //yt_set_apikey(trim(file_get_contents(__DIR__ . '/.yt_api_key'))); |
| //print_r(yt_playlist_items('PL9GbGAd-gY1pyxZJIX5MOdYdRbdweVAID')); |
| //print_r(yt_channel_items('UCjPjcMEAN64opOoNQE9GykA')); |
| //print_r(yt_channel_items('UCjPjcMEAN64opOoNQE9GykA', 'Knight')); |
| //print_r(yt_search_items('Wesley Willis', 'date', 10)); |