Mine

class CurlSingle
{
    function setup()
    {
        $cookieJar = 'cookies.txt';
        curl_setopt($this->curl,CURLOPT_COOKIEJAR, $cookieJar); 
        curl_setopt($this->curl,CURLOPT_COOKIEFILE, $cookieJar);
        curl_setopt($this->curl,CURLOPT_AUTOREFERER, true);
        curl_setopt($this->curl,CURLOPT_FOLLOWLOCATION, true);
        curl_setopt($this->curl,CURLOPT_RETURNTRANSFER, true);
		curl_setopt($this->curl,CURLOPT_USERAGENT, 'Mozilla/5.0 (Windows; U; Windows NT 6.0; en-US; rv:1.8.1.11) Gecko/20071127 Firefox/2.0.0.11');
    }
    
    function get($url)
    { 
        $this->curl = curl_init($url);
        $this->setup();
        
        return $this->request();
    }
    
    function getAll($reg,$str)
    {
        preg_match_all($reg,$str,$matches);
        return $matches[1];
    }
    
    function post($url, $fields, $referer='')
    {
		$timeout = 0;
        $this->curl = curl_init($url);
        $this->setup();
        curl_setopt($this->curl, CURLOPT_URL, $url);
        curl_setopt($this->curl, CURLOPT_POST, 1);
        curl_setopt($this->curl, CURLOPT_REFERER, $referer);
        curl_setopt($this->curl, CURLOPT_POSTFIELDS, $fields);
		curl_setopt($this->curl, CURLOPT_CONNECTTIMEOUT, $timeout);
		curl_setopt($this->curl, CURLOPT_HTTPHEADER, array('Expect:'));
        return $this->request();
    }
    
    function getInfo($info)
    {
        $info = ($info == 'lasturl') ? curl_getinfo($this->curl, CURLINFO_EFFECTIVE_URL) : curl_getinfo($this->curl, $info);
		$info = ($info == 'http_code') ? curl_getinfo($this->curl, CURLINFO_HTTP_CODE) : curl_getinfo($this->curl, $info);
        return $info;
    }
    
    function request()
    {
        return curl_exec($this->curl);
    }
}