google_drive_thumbnail.php

<?php

$file_id = "1XSE7fHxtV-etUze91fkbRKaZodDPmQx9G_6Kc8I9sPE";
$access_token = "ya29.Ci-9A9Ckkgr6hn7Uu2UdNOm8XxK20jHNu3VfDT9mV_LbR2LmCYSo4ced8DOuEZif1g";
$url = "https://drive.google.com/thumbnail?sz=w320&id=" . $file_id;

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => $url,
  CURLOPT_RETURNTRANSFER => true,
  CURLOPT_ENCODING => "",
  CURLOPT_MAXREDIRS => 10,
  CURLOPT_TIMEOUT => 30,
  CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
  CURLOPT_CUSTOMREQUEST => "GET",
  CURLOPT_HTTPHEADER => array(
    "authorization: Bearer " . $access_token,
  ),
));

$response = curl_exec($curl);
$err = curl_error($curl);

curl_close($curl);

if ($err) {
  echo "cURL Error #:" . $err;
} else {
  echo $response;
}