商家在微信中成为服务号，认证入驻，提交申请
注：微信中业务域名需要https ，域名认证和小程序主体认证人并无关系，如：域名是A，小程序是B的，A提供业务域名以及后台，B的小程序业务域名可以选择为A，可以唤醒小程序支付，支付宝就不行。
获取一些信息【商户号】【小程序appid】【支付api 秘钥】
！！！！！！！！！！！！！！上代码！！！！！！！！！！！！
/**
* 小程序支付
*/
public function appltsOp() {
$pay_sn = $_GET['pay_sn'];
$model_mb_payment = Model('mb_payment');
$logic_payment = Logic('payment');
$result = $logic_payment->getRealOrderInfo($pay_sn, $this->member_info['member_id']);
if(!$result['state']) {
output_error($result['msg']);
}
//小程序支付
$this->_applts_pay($result['data']);
}
private function _applts_pay($order_pay_info){
//处理获取openid
$UserOpenId = Model()->table('member')->field('applet_openid')->where('member_id='.$order_pay_info['buyer_id'])->find()['applet_openid'];
$appid = 'wx0a3-------32606a'; // 小程序id
$mch_id = "1531----761"; // 支付商户id
$key = '7e48a15------------f8'; // 商户的支付密钥
$notify_url = "http------------/notify_url.php";// 微信服务器异步通知
$spbill_create_ip = $_SERVER['REMOTE_ADDR']; // 客户端ip
$openid = $UserOpenId; // 用户openid
$out_trade_no = $order_pay_info['pay_sn']; // 订单编号
$body = $order_pay_info['subject']; // 订单描述
$total_fee = $order_pay_info['api_pay_amount']; // 支付金额
$weixinPay = new WeixinPay($appid, $openid, $mch_id, $key,$out_trade_no,$body,$total_fee,$notify_url,$spbill_create_ip);
$result = $weixinPay->pay();
if($result['code'] == 0) { // 统一下单出错
echo json_encode(array('status'=>'0','data'=>'统一下单出错'));die;
}
echo json_encode(array('status'=>'1','data'=>$result));die;
}}
class WeixinPay {
protected $appid;
protected $mch_id;
protected $key;
protected $openid;
protected $out_trade_no;
protected $body;
protected $total_fee;
protected $notify_url;
protected $spbill_create_ip;
function __construct($appid, $openid, $mch_id, $key,$out_trade_no,$body,$total_fee,$notify_url,$spbill_create_ip) {
$this->appid = $appid;
$this->openid = $openid;
$this->mch_id = $mch_id;
$this->key = $key;
$this->out_trade_no = $out_trade_no;
$this->body = $body;
$this->total_fee = $total_fee;
$this->notify_url = $notify_url;
$this->spbill_create_ip = $spbill_create_ip;
}
/************测试方法可删除*****************/
public function test() {
$ha = "hello world";
return $this->appid;
}
/************可删除*****************/
public function pay() {// var_dump($this->notify_url);
// die;
//统一下单接口
$return = $this->weixinapp();
return $return;
}
//统一下单接口
private function unifiedorder() {
$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';
// 这里的参数顺序一定要按下面的，不然可能就一直报商户号此功能未授权等错误
$parameters = array(
'appid' => $this->appid, // 小程序ID
//'body' => 'test', // 商品描述
'body' => $this->body,
'mch_id' => $this->mch_id, // 商户号
'nonce_str' => $this->createNoncestr(), // 随机字符串
'notify_url' => $this->notify_url, //'https://shop.gdpress.cn/syw_jingzhun/index.php/Api/xiaochengxu/notify_url_api', // 通知地址 确保外网能正常访问
'openid' => $this->openid, // 用户id
// 'out_trade_no' => '2015450806125348', // 商户订单号
'out_trade_no'=> $this->out_trade_no,
//'spbill_create_ip' => $_SERVER['REMOTE_ADDR'], // 终端IP
'spbill_create_ip' => $this->spbill_create_ip, // 终端IP
'total_fee' => floatval(($this->total_fee) * 100), // 单位 分
//'total_fee' => $this->total_fee, // 单位 分
'trade_type' => 'JSAPI' // 交易类型
);
//统一下单签名
$parameters['sign'] = $this->getSign($parameters);
$xmlData = $this->arrayToXml($parameters);
$return = $this->xmlToArray($this->postXmlCurl($xmlData, $url, 60));
//$return = $this->postXmlCurl($xmlData, $url, 60);
// print_r($return);
// die;
return $return;
}
// curl请求方法封装
private static function postXmlCurl($xml, $url, $second = 30)
{
$ch = curl_init();
//设置超时
curl_setopt($ch, CURLOPT_TIMEOUT, $second);
curl_setopt($ch, CURLOPT_URL, $url);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); //严格校验
//设置header
curl_setopt($ch, CURLOPT_HEADER, FALSE);
//要求结果为字符串且输出到屏幕上
curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
//post提交方式
curl_setopt($ch, CURLOPT_POST, TRUE);
curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20);
curl_setopt($ch, CURLOPT_TIMEOUT, 40);
set_time_limit(0);
//运行curl
$data = curl_exec($ch);
//返回结果
if ($data) {
curl_close($ch);
return $data;
} else {
$error = curl_errno($ch);
curl_close($ch);
throw new WxPayException("curl出错，错误码:$error");
}
}
//数组转换成xml
private function arrayToXml($arr) {
$xml = "<xml>";
foreach ($arr as $key => $val) {
if (is_array($val)) {
$xml .= "<" . $key . ">" . arrayToXml($val) . "</" . $key . ">";
} else {
$xml .= "<" . $key . ">" . $val . "</" . $key . ">";
}
}
$xml .= "</xml>";
return $xml;
}
//xml转换成数组
private function xmlToArray($xml) {
//禁止引用外部xml实体
libxml_disable_entity_loader(true);
$xmlstring = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
$val = json_decode(json_encode($xmlstring), true);
return $val;
}
//微信小程序接口
private function weixinapp() {
//统一下单接口
$unifiedorder = $this->unifiedorder();
// 统一下单出错，参数出错等原因
if($unifiedorder['return_code'] == 'FAIL') {
$retrunInfo['code'] = 0;
$retrunInfo['msg'] = $unifiedorder['return_msg'];
return $retrunInfo;
}
// print_r($unifiedorder);
// die;
$parameters = array(
'appId' => $this->appid, // 小程序ID
'timeStamp' => '' . time() . '', // 时间戳
'nonceStr' => $this->createNoncestr(), // 随机串
'package' => 'prepay_id=' . $unifiedorder['prepay_id'], // 数据包
'signType' => 'MD5' // 签名方式
);
// 小程序发起支付签名
$parameters['paySign'] = $this->getSign($parameters);
// 成功返回
$retrunInfo['code'] = 1;
$retrunInfo['msg'] = $parameters;
return $retrunInfo;
}
//作用：产生随机字符串，不长于32位
private function createNoncestr($length = 32) {
$chars = "abcdefghijklmnopqrstuvwxyz0123456789";
$str = "";
for ($i = 0; $i < $length; $i++) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
//作用：生成签名
private function getSign($Obj) {
foreach ($Obj as $k => $v) {
$Parameters[$k] = $v;
}
//签名步骤一：按字典序排序参数
ksort($Parameters);
$String = $this->formatBizQueryParaMap($Parameters, false);
//签名步骤二：在string后加入KEY
$String = $String . "&key=" . $this->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 $result_;
}
// 作用：格式化参数，签名过程需要使用
private function formatBizQueryParaMap($paraMap, $urlencode) {
$buff = "";
ksort($paraMap);
foreach ($paraMap as $k => $v) {
if ($urlencode) {
$v = urlencode($v);
}
$buff .= $k . "=" . $v . "&";
}
$reqPar;
if (strlen($buff) > 0) {
$reqPar = substr($buff, 0, strlen($buff) - 1);
}
return $reqPar;
}}
结束-------------------------------------------------------------------------------------------------------------