cURL over http / socks proxy with authentication

Question

I have problem with scraping data over proxy which use authentication. Proxy is online, its private and it work very fast from browser.

However proxy requires authentication and i just cant think of why this simple script doesnt work?!

<?php
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, "http://automation.whatismyip.com/n09230945.asp");
    curl_setopt($ch, CURLOPT_HEADER, 0);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, 0);
    curl_setopt($ch, CURLOPT_PROXY, "proxyIP:proxyPORT");
    curl_setopt($ch, CURLOPT_PROXYUSERPWD,"username:password");

    $result = curl_exec($ch); 
    curl_close($ch); 
    return $result;
?>

I have tried to set CURLOPT_HTTPAUTH with any valid value and it is same.. Any suggestion?

Answer 1

Try setting:

curl_setopt($ch, CURLOPT_HTTPPROXYTUNNEL, 1);