Saving Image from URL cURL code

function curl_file_get_daiphocontents($url) {
	$ch = curl_init();

	curl_setopt($ch, CURLOPT_HEADER, 0);
	curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
	curl_setopt($ch, CURLOPT_URL, $url);

	$data = curl_exec($ch);
	curl_close($ch);

	return $data;
}

$domainname = 'https://www.daipho.com';
$url = $domainname .'/logo/image-6-1.png';
$img = 'daipho-6-1.png';
$data = curl_file_get_daiphocontents($url);

file_put_contents( $img, $data );
echo "Đã lưu tập tin ". $img ." từ ". $domainname ."!";