微信小程序支付之单次支付

本文主要是介绍微信小程序支付之单次支付，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

 //获取支付必备参数prepay_id 以及进行支付返回paysign
 public function pay($id){//$order_id = input('order_id');
     //进行查询数据库获得支付参数，
     header("Content-type:text/html;charset=utf-8"); //此处进行字符集初始化，
     // $pay_data = DB::name('pay')->find();
     $order_data = db('order')->where('id', $id)->find();$notify_url =  'https://' . $_SERVER['HTTP_HOST'] . '/index.php/home/Index/payok';$data = array(//'appid' => 'wxf0d27e41678c566c',  //小程序appid
         'appid' => Config::get('appid'),'body' => '腾讯-游戏',//'mch_id' => '1484855592',         //微信支付商户号
         'mch_id' => Config::get('mch_id'),'nonce_str' => md5(date('YmdHis') . time() . rand(1000, 9999)),           //随机字符串
         'notify_url' => $notify_url,    //异步回调地址
         'openid' => $order_data['openid'],        //用户登录时获取的code中含有的值
         'out_trade_no' => $order_data['orderno'],               //商家订单号
         'spbill_create_ip' => '127.0.0.1',           //APP和网页支付提交用户端ip
         'total_fee' => $order_data['total']*100,                 //订单总额
         // 'total_fee' => 1,
         'attach' => 'borrow',           //确定是哪个商家进行的支付
         'trade_type' => 'JSAPI'           //交易类型
     );// echo_info($data);die;
     //$key = 'z4hgl4cnf5ac2wl3msiek5p0x3aiy2yc'; //商户秘钥
     $key = Config::get('shopsecret');//制作签名
     //签名步骤一：按字典序排序参数
     ksort($data);$buff = "";foreach ($data as $k => $v) {if ($k != "sign" && $v != "" && !is_array($v)) {$buff .= $k . "=" . $v . "&";}}$buff = trim($buff, "&");//签名步骤二：在string后加入KEY
     $string = $buff . "&key=" . $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
     $sign = strtoupper($string);$data['sign'] = $sign;ksort($data);//进行拼接数据
     $abc_xml = "<xml>";foreach ($data as $key => $val) {if (is_numeric($val)) {$abc_xml .= "<" . $key . ">" . $val . "</" . $key . ">";} else {$abc_xml .= "<" . $key . "><![CDATA[" . $val . "]]></" . $key . ">";}}$abc_xml .= "</xml>";//统一下单接口prepay_id
     $url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';// $abc_xml=array2xml($data);

     //dump($abc_xml);die;

     $xml = http_request_curl($url, $abc_xml);     //POST方式请求http
     //将XMl转化为数组

     $info = xml2array($xml);// echo_info($info);die();
     //进行拼接sign
     function MakeSign($params, $KEY){//签名步骤一：按字典序排序数组参数
         ksort($params);$buff1 = '';foreach ($params as $k => $v) {if ($k != "sign" && $v != "" && !is_array($v)) {$buff1 .= $k . "=" . $v . "&";}}$buff1 = trim($buff1, "&");//签名步骤二：在string后加入KEY
         $string = $buff1 . "&key=" . $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 $result;}if (empty($info['prepay_id'])) {echo_info(array('status' => -1, 'message' => '商户号id和秘钥不匹配'));}$params = array('appId' => Config::get('appid'),'nonceStr' => $data['nonce_str'],'package' => 'Sign=WXPay&prepay_id=' . $info['prepay_id'],'signType' => 'MD5','timeStamp' => time());//$key = 'z4hgl4cnf5ac2wl3msiek5p0x3aiy2yc'; //商户秘钥
     $key = Config::get('shopsecret');$info['paySign'] = MakeSign($params, $key);$info['timeStamp'] = "" . $params['timeStamp'] . "";$info['nonceStr'] = $params['nonceStr'];$info['package'] = $params['package'];//请求成功后进行返回数据信息
     if ($info['return_code'] == 'SUCCESS' || $info['result_code'] == 'SUCCESS') {echo_info(array('status' => 1, 'message' => '请求成功', 'data' => $info));} else {echo_info(array('status' => -1, 'message' => '请求失败', 'data' => $info));}}public function payok()
{error_reporting(0);define('IN_MOBILE', true);libxml_disable_entity_loader(true);$xml = '<?xml version="1.0" encoding="utf-8"?>';$xml .= $GLOBALS['HTTP_RAW_POST_DATA'];$obj = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);$arrayinfo = xmlToArray($obj);if (($arrayinfo['result_code'] = 'SUCCESS' || $arrayinfo['return_code'] = 'SUCCESS')) {$out_trade_no = $arrayinfo['out_trade_no']; //商户订单号
        $transaction_id = $arrayinfo['transaction_id']; //微信订单支付订单号

        $result = DB::name('order')->where('orderno', $out_trade_no)->find();if ($result['status'] != 1) {$datas = array('status' => 1,'transid' => $transaction_id
            );$res = DB::name('order')->where('orderno', $out_trade_no)->update($datas);if ($res) {return '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';} else {return '<xml><return_code><![CDATA[FAIL]]></return_code><return_msg><![CDATA[NO]]></return_msg></xml>';}} else {return '<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>';}} else {return '<xml><return_code><![CDATA[FAIL]]></return_code><return_msg><![CDATA[NO]]></return_msg></xml>';}}
//调试过程可能会出现商户号id和秘钥不匹配，重置一下秘钥就好