Check header response before download in single request with CURL - php

Question

Is it possible to check the response headers (200=OK) and download a file in a single CURL request?
Here is my code. The problem with this is that it makes 2 requests, and hence the second request can be different and the saved file will be overwritten. This is a problem with rate limited API. I searched here on Stackoverflow but most solutions still make 2 requests.
// Check response first, we don't want to download the response error to the file
$urlCheck = checkRemoteFile($to_download);
if ($urlCheck) {
// Response is 200, continue
} else {
// Do not overwrite existing file
echo 'Download failed, response code header is not 200';
exit();
}
// File Handling
$new_file = fopen($downloaded, "w") or die("cannot open" . $downloaded);
// Setting the curl operations
$cd = curl_init();
curl_setopt($cd, CURLOPT_URL, $to_download);
curl_setopt($cd, CURLOPT_FILE, $new_file);
curl_setopt($cd, CURLOPT_TIMEOUT, 30); // timeout is 30 seconds, to download the large files you may need to increase the timeout limit.
// Running curl to download file
curl_exec($cd);
if (curl_errno($cd)) {
echo "the cURL error is : " . curl_error($cd);
} else {
$status = curl_getinfo($cd);
echo $status["http_code"] == 200 ? "File Downloaded" : "The error code is : " . $status["http_code"] ;
// the http status 200 means everything is going well. the error codes can be 401, 403 or 404.
}
// close and finalize the operations.
curl_close($cd);
fclose($new_file);
# FUNCTIONS
function checkRemoteFile($url) {
$curl = curl_init($url);
//don't fetch the actual page, you only want to check the connection is ok
curl_setopt($curl, CURLOPT_NOBODY, true);
//do request
$result = curl_exec($curl);
$ret = false;
//if request did not fail
if ($result !== false) {
//if request was ok, check response code
$statusCode = curl_getinfo($curl, CURLINFO_HTTP_CODE);
if ($statusCode == 200) {
$ret = true;
}
}
curl_close($curl);
return $ret;
}