CURLOPT_HEADER NOT for send custom headers

[ewwink]

CURLOPT_HEADER TRUE to include the header in the output, so it not for sending custom headers. you can set it to false and remove the loop

foreach($output as $line)
 {
    if($line === false)
      {
        // there was no bearer token
      }else{
        $bearer_token = $line;
      }
}