PHP上传文件及图片到七牛的方法

composer require qiniu/php-sdk

use Qiniu\Auth;
use Qiniu\Storage\UploadManager;

$cfg = [
 'access' => 'YOUR_ACCESS_KEY',
 'secret' => 'YOUR_SECRET_KEY',
 'bucket' => 'YOUR_BUCKET',
 'domain' => 'https://images.your_domain.com'
];

$auth = new Auth($cfg['access'], $cfg['secret']);
// 创建一个过期时间为1小时的临时上传令牌
$token = $auth->uploadToken($cfg['bucket'], null, 3600);

$filePath = "./illustration.png";

$uploadMgr = new UploadManager();
list($ret, $err) = $uploadMgr->putFile($token, null, $filePath);
if($err !== null) {
  $this->err = $err;
} else {
  echo $cfg['domain'] . '/' . $ret['key'];
}

<"base64编码的字符串";
echo "<pre>";
echo request_by_curl('http://upload.qiniu.com/putb64/-1',$str,$upToken);
echo "</pre>";