如何从YouTube图像URL上传到我的拇指文件夹

Question

我使用此功能从YouTube图像URL获取二进制数据。但是，将API V2更改为API V3后，我在过去的工作中使用的功能不再工作。该函数没有返回任何值。请帮助我解决这个问题。

<?php
$thumbnail_link = 'https://i.ytimg.com/vi_webp/s4bw0HQotfU/0.jpg';

if ( function_exists('curl_init') ) 
    {
        $ch = curl_init();
        $timeout = 0;
        curl_setopt ($ch, CURLOPT_URL, $thumbnail_link);
        curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
        // Getting binary data
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
        curl_setopt($ch, CURLOPT_BINARYTRANSFER, 1);
        $image = curl_exec($ch);
        curl_close($ch);
        echo $image; //this will return an empty data why is it?

        //  create & save image;
        $img_res = @imagecreatefromstring($image);
        if($img_res === false)
            return FALSE;
        $img_width = imagesx($img_res);
        $img_height = imagesy($img_res);
        $resource = @imagecreatetruecolor($img_width, $img_height);
        if( function_exists('imageantialias'))
        {
            @imageantialias($resource, true); 
        }
        @imagecopyresampled($resource, $img_res, 0, 0, 0, 0, $img_width, $img_height, $img_width, $img_height);
        @imagedestroy($img_res);
        switch($ext)
        {
            case ".gif":
                //GIF
                @imagegif($resource, $upload_path . $thumb_name);
            break;
            case ".jpg":
                //JPG
                @imagejpeg($resource, $upload_path . $thumb_name);
            break;  
            case ".png":
                //PNG
                @imagepng($resource, $upload_path . $thumb_name);
            break;
        }

    }
?>

Answer 1

您的缩略图链接i.ytimg.com/vi_webp/s4bw0hqotfu/0.jpg不存在。

您可以使用V3 API获取正确的缩略图网址：https://developers.google.com/youtube/v3/docs/videos/list

在上面的情况下，将获得https://www.googleapis.com/youtube/v3/videos?part=snippet&Amp;Id=s4bw0hqotfu＆amkemek;

然后您处理结果以获取可用的缩略图：

"thumbnails": {
 "default": {
  "url": "https://i.ytimg.com/vi/s4bw0HQotfU/default.jpg",
  "width": 120,
  "height": 90
 },
 "medium": {
  "url": "https://i.ytimg.com/vi/s4bw0HQotfU/mqdefault.jpg",
  "width": 320,
  "height": 180
 },
 "high": {
  "url": "https://i.ytimg.com/vi/s4bw0HQotfU/hqdefault.jpg",
  "width": 480,
  "height": 360
 },
 "standard": {
  "url": "https://i.ytimg.com/vi/s4bw0HQotfU/sddefault.jpg",
  "width": 640,
  "height": 480
 },
 "maxres": {
  "url": "https://i.ytimg.com/vi/s4bw0HQotfU/maxresdefault.jpg",
  "width": 1280,
  "height": 720
 }
},