cURL download progress in PHP

Question

I\'m pretty new to cURL so I\'ve been struggling with this one for hours. I\'m trying to download the source of a website in an iframe using cURL and while it\'s loading to

Answer 1

To use the callback inside a class, you must do it like this:

curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, array($this, 'progress'));

or if using static functions, like this:

curl_setopt($ch, CURLOPT_PROGRESSFUNCTION, array('self', 'progress'));

... to a callback function to do whatever you need:

private static function progress($resource, $downloadSize, $downloaded, $uploadSize, $uploaded)
{
    // emit the progress
    Cache::put('download_status', [
        'resource' => $resource,
        'download_size' => $downloadSize,
        'downloaded' => $downloaded,
        'upload_size' => $uploadSize,
        'uploaded' => $uploaded
    ], 10);
}