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;
    }
    
}