{
            "a": "sss",
            "b": "aaaa",
            "c": "ddd",
            "d": "ff",
            "e": 0,
            "f": "GMT+07:00",
            "g": "",
            "h": "",
            "i": "rrr",
            "k": "hhh",
            "l": "14.0.0",
            "m": [
                {
                    "n": 5,
                    "o": "xxx"
                }
            ]
            }

function httpPost2($url,$params,$protocol="http")
    {

        $data_string = $params;

        $ch = curl_init($url);
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data_string);
        curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
        curl_setopt($ch, CURLOPT_HTTPHEADER, array(
            'Content-Type: application/json',
            'Content-Length: ' . strlen($data_string))
        );

        $result = curl_exec($ch);

    }

$posted= httpPost2("xxx/Elp/JSON/Authe",$posted) .'<br/>';
var_dump($posted);