What is blocking fsockopen?

Question

After struggling for half a day, I finally manage to get reCAPTCHA to work by converting this function:

function _recaptcha_http_post($host, $path, $data, $p         


        

Answer 1

What is in $errno and $errstr inside if(false === ...)? So, what does it output if you change to

 if( false == ( $fs = @fsockopen($host, $port, $errno, $errstr, 10) ) ) {
  die ("Could not open socket, error: " . $errstr);
 }