Question

I have a situation where I need to move files from one location to another. Using cURL, it is simple to download the files and then upload them using the sweet at symbol i.e. “file_box”=>”@/path/to/myfile.jpg” What I’m looking to do now is bypass the saving step in the middle and just “stream” the file from one to the other. Is this possible?

Answer 1

Sure, you can do that. I’m not sure you can use cURL for the POST though. You’d have to look into its methods to see if it will let you callback for the next chunk of data.

http://curl.haxx.se/libcurl/php/examples/callbacks.html

$ch = curl_init();
curl_set_opt($ch, CURLOPT_HEADERFUNCTION, 'read_header');
curl_set_opt($ch, CURLOPT_WRITEFUNCTION, 'read_body');

function read_header($ch, $data) {
    // Ok, so the header is going to come in here.
    // I assume you will need data, such as MIME type and what not.
    print_r($data);
    return strlen($data); //This means that we handled it, so cURL will keep processing
}

function read_body($ch, $data) {
    // This is where the body of the content will be, in chunks.
    // This function will be called multiple times.
    print_r($data);
    return strlen($data); //Again, if we don't do this, cURL will cancel.
}

Now for the sending part, it seems you will have to implement HTTP yourself with fsockopen. See here for more information: PHP How To Send Raw HTTP Packet