/**
 * @param $url 接口地址
 * @param $http_method 请求方式
 * @param $data 请求数据
 * @param $header 请求头(一维非关联数组)
 * @param $cookie 请cookie
 * @return 发送https的post请求
 */
function http_curl($url, $http_method = 'GET', $data = '', $header = array(), $cookie = '')
{
    $headers = array(
        'Accept: application/json',
    );
    $headers = array_merge($headers, $header);
    if ($cookie) {
        $headers[] = "Cookie: $cookie";
    }
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_HTTPHEADER, $headers);
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
    curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE);
    curl_setopt($ch, CURLOPT_HEADER, FALSE);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
    //post提交方式
    if ($http_method == 'POST' && $data) {
        curl_setopt($ch, CURLOPT_POST, true);
        curl_setopt($ch, CURLOPT_POSTFIELDS, $data);
    }

    $res = curl_exec($ch);
    //返回结果
    if ($res) {
        curl_close($ch);
        return $res;
    } else {
        $error = curl_errno($ch);
        curl_close($ch);
        return $error;
    }
}