第四方 fast快捷支付封装

 class Fastpay {
     protected $conf = [
         'appkey'=>'',//appkey
         'key'=>'',//秘钥
     ];
     protected $http_type='http';

     public function __construct($payInfo=[]){
         if($payInfo)
         {
            foreach ($payInfo as $field => $val) {
                 $this->config[$field]=$val['val'];
             }
         }
     }
     public function index($data)
     {
         $data = array(
             'appkey'=>$this->config['appkey'],//你的appkey
             'uid'=>$data['attach'],//你的用户id
             'total_fee'=>$data['total'],//你的金额
             'order_no'=>$data['pay_sn'],//你的订单号
             'pay_title'=>$data['subject'],//你的订单号
             'me_param'=>$data['attach'],//其他参数,可返回回调里面
             'notify_url'=>$data['notify_url'],//异步回调地址
             'me_back_url'=>$data['return_url'],//支付成功后返回
             'me_eshop_openid'=>'',//付款用户openid
             'me_party'=>'',//根据其他支付插件,异步回调返回同样参数,比如填写codepay,码支付,我们异步回调的时候就按码支付的回调参数返回
             'sign'=>''//签名
         );
         $checkRes=$this->checkData($data);
         if($checkRes['code']==0)
         {
             return $checkRes;
         }
         $data=$checkRes['data'];
         $url_quer=http_build_query($data);
         $url=($this->http_type=='https') ? "/fastpay/fpay/pays.php?{$url_quer}" : "/fastpay/fpay/pay.php?{$url_quer}" ;
         return ['code'=>1,'msg'=>'success','data'=>['payurl'=>$url]];
     }

     // 检测数据
     public function checkData($data)
     {
         extract($data);
         if (empty($appkey)) {
             return ['code'=>0,'msg'=>'appkey没有填写'];
         }
         if (empty($total_fee)) {
             return ['code'=>0,'msg'=>'金额不能为空'];
         }
         if (empty($uid)) {
             return ['code'=>0,'msg'=>'付款用户id不能为空'];
         }
         if (empty($order_no)) {
             return ['code'=>0,'msg'=>'请输入支付编号'];
         }
         if (!empty($me_back_url)) {
             $data['me_back_url']=urlencode($me_back_url);
         }
         if (!empty($notify_url)) {
             $data['notify_url']=urlencode($notify_url);
         }

         // 直接将金额精确到两位数
         $data['total_fee']=bcadd($total_fee, 0, 2);
         if (empty($sign)) {
             $data['sign']=$this->pay_sign($data);
         }

         return ['code'=>1,'msg'=>'success','data'=>$data];
     }

     //支付下单计算签名
     public function pay_sign($paydata)
     {
         $str_sign="appkey={$paydata['appkey']}&order_no={$paydata['order_no']}&secretkey=".$this->config['key']."&total_fee={$paydata['total_fee']}&uid={$paydata['uid']}&";
         $sign=md5($str_sign);
         return $sign;
     }

     function notify_sign($paydata)
     {
         $str_sign="appkey={$paydata['appkey']}&order_no={$paydata['order_no']}&secretkey=".SECRET_KEY."&me_pri={$paydata['me_pri']}&uid={$paydata['uid']}&";
         $sign=md5($str_sign);
         return $sign;
     }

 }