php curl 下载远程超大文件
function downloadFile($url, $path)
{
$fp = fopen($path, 'w');
$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_FILE, $fp);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, true);
curl_exec($ch);
curl_close($ch);
fclose($fp);
}
优点是不占用内存，文件自动追加
