php curl post提交

 /**
     * @param $arr  //提交的数据
     * @param $url  //请求地址
     * @param $type  //当type == 1时为表单提交
     * @return mixed
     */
    public function postCurl($arr,$url,$type){
        $ch = curl_init();
        curl_setopt($ch,CURLOPT_URL,$url);//获取url地址
        curl_setopt($ch, CURLOPT_CUSTOMREQUEST, "POST");
        curl_setopt($ch,CURLOPT_HEADER,0);//启用时会将头文件的信息作为数据流输出
        curl_setopt($ch, CURLOPT_RETURNTRANSFER,1);//TRUE 将curl_exec()获取的信息以字符串返回，而不是直接输出
        curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 100);//设置连接等待时间
        curl_setopt($ch, CURLOPT_TIMEOUT, 10);//超时时间
        curl_setopt($ch, CURLOPT_IPRESOLVE, CURL_IPRESOLVE_V4 ); //强制使用IPV4协议解析域名
        curl_setopt($ch, CURLOPT_HTTP_VERSION, CURL_HTTP_VERSION_1_0); //强制协议为1.0
        curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);//忽略证书
        if($type == 1){
            curl_setopt($ch, CURLOPT_POSTFIELDS,http_build_query($arr));
        }else{
            $json = json_encode($arr);
            curl_setopt($ch, CURLOPT_POSTFIELDS,$json);
            curl_setopt($ch, CURLOPT_HTTPHEADER, array(
                "Content-Type: application/json;charset='utf-8'",
                'Content-Length: ' . strlen($json)
            ));
        }

        $res = curl_exec($ch);
        if (curl_errno($ch)) {
            echo curl_error($ch);exit;//捕抓异常
        }
        curl_close($ch);
        $result = json_decode($res,true);
        return $result;
    }