CURLOPT_PROXY failing me?

(note: cURL is installed on my webhost)

Useful cURL class I'm using: http://paste2.org/3weaghkm

public function testNewProxies($file, $max_time = 5){
        $proxies = file_get_contents($file);
        $proxies = explode(PHP_EOL, $proxies);
        
        $fresh = array();
        
        foreach($proxies as $proxy){
            $this->curl->addSession('http://www.google.com', array(
                CURLOPT_TIMEOUT => 10,
                CURLOPT_RETURNTRANSFER => true,
                CURLOPT_PROXY => $proxy
            ));
        }
        
        $results = $this->curl->exec();
        $this->curl->clear();
        
        print_r($results);
        
        //check for fresh proxies
        for($i = 0; $i < count($proxies); $i++){
            if(strpos($results[$i], 'removed'))
                $fresh[] = $proxies[$i];
        }
        
        //write fresh proxies to new file
        $fh = fopen('proxies/proxies_checked_'.time().'.txt', 'w+');
        
        foreach($fresh as $proxy){
            fwrite($fh, $proxy.PHP_EOL);
        }
        
        fclose($fh);
        
        return count($fresh);
    }

The above function will run a file full of proxies and test them to see if they're good for use; however, nothing is ever returned. No errors or any data at all is returned in $results.

I always get this:

or

Any ideas and/or solutions?

Thank you.