Here, this should do it:
curl_setopt($this->_ch, CURLOPT_URL, $this->_url);
curl_setopt($this->_ch, CURLOPT_HEADER, 1);
curl_setopt($this->_ch, CURLOPT_RETURNTRANSFER, 1);
$response = curl_exec($this->_ch);
$info = curl_getinfo($this->_ch);
$headers = get_headers_from_curl_response($response);
function get_headers_from_curl_response($response)
{
$headers = array();
$header_text = substr($response, 0, strpos($response, "\r\n\r\n"));
foreach (explode("\r\n", $header_text) as $i => $line)
if ($i === 0)
$headers['http_code'] = $line;
else
{
list ($key, $value) = explode(': ', $line);
$headers[$key] = $value;
}
return $headers;
}