如何使用php和API从url获取youtube视频的缩略图

Question

Below code, I got title and description but I want image as well as how to get the main image of video from JSON data.

$videoid = 'cMC_PtgKDJE';
$apikey = 'xyzxyzxyz';  //My API key

$json = file_get_contents('https://www.googleapis.com/youtube/v3/videos?id='.$videoid.'&key='.$apikey.'&part=snippet');
$ytdata = json_decode($json);
print_r($ytdata);
echo '<h1>Title: ' . $ytdata->items[0]->snippet->title . '</h1>';
echo 'Description: ' . $ytdata->items[0]->snippet->description;

Answer 1

Each YouTube video has 4 generated images.You can create the url as fallows

https://img.youtube.com/vi/<video-id-here>/0.jpg

DEMO

If you want high quality image then you can read following atricle

how to get a youtube video’s thumbnail image in high quality

How to get video id from youtube url

$url = "http://www.youtube.com/watch?v=7zWKm-LZWm4&feature=relate";
parse_str( parse_url( $url, PHP_URL_QUERY ), $url_vars );
echo $url_vars['v'];    
  // Output: 7zWKm-LZWm4
?>