How use CURLOPT_WRITEFUNCTION when download a file by CURL

Question

My Class for download file direct from a link:

MyClass{

          function download($link){
                ......
                $ch = curl_init($link);
          


        

Answer 1

It seems like cURL uses your function instead of writing to the request once CURLOPT_WRITEFUNCTION is specified.

So the correct solution would be :

MyClass{

      function download($link){
            ......
            $ch = curl_init($link);
            curl_setopt($ch, CURLOPT_FILE, $File->handle);
            curl_setopt($ch,CURLOPT_WRITEFUNCTION , array($this,'__writeFunction'));
            curl_exec($ch);
            curl_close($ch);
            $File->close();
            ......

        }

      function __writeFunction($curl, $data) {
            echo $data;
            return strlen($data);            
      } 
}

This can also handle binary files as well.