<?php
function curl_upload($src) {
    $fn = basename($src);
    $dest = "ftp://user:passwd@server.com/incoming/$fn";
    $ch = curl_init();
   
    $fp = fopen($src,"r");
    curl_setopt($ch, CURLOPT_UPLOAD, 1);
    curl_setopt($ch, CURLOPT_TIMEOUT, 300);
    curl_setopt($ch, CURLE_OPERATION_TIMEOUTED, 300);
    curl_setopt($ch, CURLOPT_URL, $dest);
    curl_setopt($ch, CURLOPT_INFILE, $fp);
    curl_setopt($ch, CURLOPT_INFILESIZE, filesize($src));
    curl_exec($ch);
    fclose ($fp);
    $errorMsg = '';
    $errorMsg = curl_error($ch);
    $errorNumber = curl_errno($ch);
    curl_close($ch);
    return $errorNumber;
}
?>