Thinkphp和onethink实现微信支付插件_php技巧

//实现的Wxpay钩子方法    public function Wxpay($param){      require './Addons/Wxpay/WxPayPubHelper/WxPayPubHelper.php';      $jsApi = new \JsApi_pub();              //=========步骤1：网页授权获取用户openid============      if (!isset($_GET['code']))      {        //触发微信返回code码        $url = $jsApi->createOauthUrlForCode(\WxPayConf_pub::JS_API_CALL_URL.'/order_id/'.$param['order_id']);        Header("Location: $url");      }else      {        $order_id = $param['order_id'];        $info = M('Order')->where('id='.$order_id)->find();        if(empty($info) || $info['is_pay'] == 1){          dump('该订单不存在或已支付'.$order_id);          exit();        }        $this->assign('info', $info);        $a = $info['money'];        $b = 100;        $c = $a * $b;                 //获取code码，以获取openid        $code = $_GET['code'];        $jsApi->setCode($code);        $openid = $jsApi->getOpenId();      }             //=========步骤2：使用统一支付接口，获取prepay_id============      //使用统一支付接口      $unifiedOrder = new \UnifiedOrder_pub();             $unifiedOrder->setParameter("openid","$openid");//商品描述      $unifiedOrder->setParameter("body","在线预订");//商品描述      //自定义订单号，此处仅作举例      $timeStamp = time();//       $out_trade_no = \WxPayConf_pub::APPID."$timeStamp";      $out_trade_no = $info['ordersn'];      $unifiedOrder->setParameter("out_trade_no", "$out_trade_no");//商户订单号      $unifiedOrder->setParameter("total_fee", "$c");//总金额      $unifiedOrder->setParameter("notify_url",\WxPayConf_pub::NOTIFY_URL.'/order_id/'.$param['order_id']);//通知地址      $unifiedOrder->setParameter("trade_type","JSAPI");//交易类型             $prepay_id = $unifiedOrder->getPrepayId();      //=========步骤3：使用jsapi调起支付============ <b>6本文来源gao@dai!ma.com搞$代^码!网7</b><pre>搞gaodaima代码

$jsApi->setPrepayId($prepay_id); $jsApiParameters = $jsApi->getParameters(); $this->assign(‘jsApiParameters’, $jsApiParameters); $this->display(‘pay’); }