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Downloads YouTube playlists.
<?php
$playlist_id= 'PLzJZ3ahfm9Q_VSVXmANa8s6v99t3uRkkL';
$api_key = 'AIzaSyAL7YE_8oGFPPWJ6pgQVbAYF-G7tsbf15I';
$base_url = 'https://www.googleapis.com/youtube/v3/';
$playlist_items_url = 'playlistItems?part=contentDetails%2Csnippet&maxResults=50&playlistId='.$playlist_id.'&key='.$api_key;
$playlist_url = $base_url . 'playlists?part=contentDetails%2Csnippet&id='.$playlist_id.'&key='.$api_key;
$playlist_output = curl_get($playlist_url);
$json_playlist_info = json_decode($playlist_output, true);
$playlist_title = $json_playlist_info['items'][0]['snippet']['title'];
$playlist_title = preg_replace('/[\s]+/', '', $playlist_title);
$folder_title = '~/Movies/'.$playlist_title;
mkdir($folder_title);
$url = $base_url . $playlist_items_url;
$output = curl_get($url);
$json_youtube_videos = json_decode($output,true);
$videos = $json_youtube_videos['items'];
//print_r($json_youtube_videos);
while(isset($json_youtube_videos['nextPageToken'])){
if(preg_match('/&pageToken=/', $url)){
$exploded_url = explode('&', $url);
foreach($exploded_url as $i => $chunk){
if(preg_match('/pageToken=/', $chunk)){
$exploded_url[$i] = 'pageToken='.$json_youtube_videos['nextPageToken'];
$url = implode('&', $exploded_url);
}
}
} else {
$url = $url.'&pageToken='.$json_youtube_videos['nextPageToken'];
}
$output = curl_get($url);
$json_youtube_videos = json_decode($output,true);
$additional_videos = $json_youtube_videos['items'];
$videos = array_merge($videos, $additional_videos);
}
//print_r(count($videos));
$video_template_url = 'http://www.youtube.com/watch?v=';
//$get_video_info = 'http://www.youtube.com/get_video_info?&video_id=';
foreach($videos as $i => $video){
$video_id = $video['contentDetails']['videoId'];
$resolved_video_url = $video_template_url. $video_id;
$video_title = $video['snippet']['title'];
//echo $video_url .PHP_EOL.implode('', explode(' ', $video_title)).PHP_EOL.PHP_EOL;
echo "Downloading... ".$video_title.PHP_EOL;
$video_title = preg_replace('/[\s]+/', '', $video_title);
$output_file = $folder_title . '/'. $video_title;
exec("youtube-dl -o ".$output_file.".mp4 '".$resolved_video_url."'");
}
function curl_get($URL) {
$ch = curl_init();
$timeout = 3;
curl_setopt( $ch , CURLOPT_URL , $URL );
curl_setopt( $ch , CURLOPT_RETURNTRANSFER , 1 );
curl_setopt( $ch , CURLOPT_CONNECTTIMEOUT , $timeout );
/* if you want to force to ipv6, uncomment the following line */
//curl_setopt( $ch , CURLOPT_IPRESOLVE , 'CURLOPT_IPRESOLVE_V6');
$tmp = curl_exec( $ch );
curl_close( $ch );
return $tmp;
}
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