xyzshop/mobile/control/app_pay.php

<?php

/**
 * Created by PhpStorm.
 * User: stanley-king
 * Date: 15/12/9
 * Time: 上午12:25
 */

define(WXPAY_PATH,BASE_DATA_PATH.'/api/wxpay');
require_once (WXPAY_PATH . '/lib/WxPay.Api.php');
require_once (WXPAY_PATH . '/lib/WxPay.Config.php');
require_once (WXPAY_PATH . '/lib/WxPay.Data.php');
require_once (WXPAY_PATH . '/lib/WxPay.Exception.php');
require_once (WXPAY_PATH . '/lib/WxPay.Notify.php');


class app_payControl extends mobileHomeControl
{
    static $pay_types = array('wxpay','alipay');
    const wx_notifyurl = 'http://t.lrlz.com/mobile/control/wxnotify.php';

    public function uniorderOp()
    {
        $pay_sn = $_GET['paysn'];
        $payment = $_GET['payment'];
        if(in_array($payment,self::pay_types) == false) {
            return joutput_error(errcode::ErrPayment,'err paytype : wxpay,alipay');
        }

        $logic_payment = Logic('payment');
        //重新计算所需支付金额
        $result = $logic_payment->getRealOrderInfo($pay_sn, $this->member_info['member_id']);

        if(!$result['state']) {
            return joutput_error(errcode::ErrPayment,$result['msg']);
        }

        $ret = $this->api_pay($result['data'], $payment);
        joutput_data($ret);
    }

    private function api_pay($pay_info,$payment)
    {
        $subject = $pay_info['subject'];
        $pay_sn = $pay_info['pay_sn'];
        $fee = $pay_info['pay_amount'];

        if($payment == 'wxpay') {
            return $this->uniorder($subject,$pay_sn,1);
        } else {

        }
    }

    /**
     * 格式化参数格式化成url参数
     */
    private function to_url_params($values)
    {
        $buff = "";
        foreach ($values as $k => $v)
        {
            if($k != "sign" && $v != "" && !is_array($v)){
                $buff .= $k . "=" . $v . "&";
            }
        }

        $buff = trim($buff, "&");
        return $buff;
    }

    private function make_sign($values)
    {
        //签名步骤一：按字典序排序参数
        ksort($values);
        $string = $this->to_url_params($values);
        //签名步骤二：在string后加入KEY
        $string = $string . "&key=".WxPayConfig::KEY;
        //签名步骤三：MD5加密
        $string = md5($string);
        //签名步骤四：所有字符转为大写
        $result = strtoupper($string);
        return $result;
    }

    public function wxnotifyOp()
    {


    }

    /**
     * @return array
     * @throws WxPayException
     */
    private function uniorder($body,$paysn,$fee)
    {
        $input = new WxPayUnifiedOrder();
        $input->SetBody($body); //商品或支付单简要描述
        $input->SetAttach($paysn); //附加数据，在查询API和支付通知中原样返回，该字段主要用于商户携带订单的自定义数据
        $input->SetOut_trade_no(WxPayConfig::MCHID . date("YmdHis"));//商户系统内部的订单号,32个字符内、可包含字母, 其他说明见商户订单号

        $input->SetTotal_fee("$fee");//订单总金额，单位为分，详见支付金额
        $input->SetTime_start(date("YmdHis")); //订单生成时间，格式为yyyyMMddHHmmss，如2009年12月25日9点10分10秒表示为20091225091010。其他详见时间规则
        $input->SetTime_expire(date("YmdHis", time() + 600));//订单失效时间，格式为yyyyMMddHHmmss，如2009年12月27日9点10分10秒表示为20091227091010。其他详见时间规则
        $input->SetNotify_url(self::wx_notifyurl);
        $input->SetTrade_type("APP");//JSAPI--公众号支付、NATIVE--原生扫码支付、APP--app支付，统一下单接口trade_type的传参可参考这里,MICROPAY--刷卡支付，刷卡支付有单独的支付接口，不调用统一下单接口
        $order = WxPayApi::unifiedOrder($input);

        $ret = array();
        $ret['appid'] = $order["appid"];
        $ret['noncestr'] = WxPayApi::getNonceStr();
        $ret['package'] = 'Sign=WXPay';
        $ret['partnerid'] = WxPayConfig::MCHID;
        $ret['prepayid'] = $order['prepay_id'];
        $timeStamp = time();
        $ret['timestamp'] = "$timeStamp";

        $sign = $this->make_sign($ret);
        $ret['sign'] = $sign;
        return $ret;
    }
}