问无法在PHP中解析URL

EN

GET https://people.googleapis.com/v1/contactGroups:batchGet

    <?php

$curl = curl_init();

curl_setopt_array($curl, array(
  CURLOPT_URL => "https://people.googleapis.com/v1/contactGroups:batchGet",
  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(
    "Cache-Control: no-cache"
  ),
));

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

curl_close($curl);

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