post & socket

 
/**
     * 发送
     * @param $url
     * @param $data
     */
    function post($url, $data){
        $ch = curl_init ($url);
        curl_setopt($ch, CURLOPT_URL, $url);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_POST, 1);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
        curl_setopt($ch, CURLOPT_TIMEOUT, 30);//超时设置30s
        $response = curl_exec($ch);
        curl_close($ch);
        return $response;
    }
    /**
     * socket
     * @param $url
     * @param $data
     */
    function fpost($url, $post_data){
        $url2 = parse_url($url);
        $url2["path"] = ($url2["path"] == "" ? "/" : $url2["path"]);
        $url2["port"] = ($url2["port"] == "" ? 80 : $url2["port"]);
        $host_ip = @gethostbyname($url2["host"]);
        $fsock_timeout = 30; //2 second
        if(($fsock = fsockopen($host_ip, $url2['port'], $errno, $errstr, $fsock_timeout)) < 0){
            return false;
        }
        $request =  $url2["path"].($url2["query"] ? "?" . $url2["query"] : "");
        $in  = "POST " . $request . " HTTP/1.0\\r\\n";
        $in .= "Accept: */*\\r\\n";
        $in .= "Host: " . $url2["host"] . "\\r\\n";
        $in .= "User-Agent: Lowell-Agent\\r\\n";
        $in .= "Content-type: application/x-www-form-urlencoded\\r\\n";
        $in .= "Content-Length: " . strlen($post_data) . "\\r\\n";
        $in .= "Connection: Close\\r\\n\\r\\n";
        $in .= $post_data . "\\r\\n\\r\\n";
        if(!@fwrite($fsock, $in, strlen($in))){
            fclose($fsock);
            return false;
        }
        return $this->getHttpContent($fsock);
    }
    function getHttpContent($fsock=null) {
        $out = null;
        while($buff = @fgets($fsock, 2048)){
            $out .= $buff;
        }
        fclose($fsock);
        $pos = strpos($out, "\\r\\n\\r\\n");
        $head = substr($out, 0, $pos);    //http head
        $status = substr($head, 0, strpos($head, "\\r\\n"));    //http status line
        $body = substr($out, $pos + 4, strlen($out) - ($pos + 4));//page body
        if(preg_match("/^HTTP\\/\\d\\.\\d\\s([\\d]+)\\s.*$/", $status, $matches)){
            if(intval($matches[1]) / 100 == 2){
                return $body;
            }else{
                return false;
            }
        }else{
            return false;
        }
    }