var total_fee = total_fee;
wx.login({
success: res => {
//code 用于获取openID的条件之一
var code = res.code;
wx.request({
url: '后台地址/index.php',method: "POST",data: {
total_fee:total_fee,code: code,},header: {
'content-type': 'application/x-www-form-urlencoded' // 默认值
},success: function (res) { //后端返回的数据
var data = res.data;
console.log(data);
console.log(data["timeStamp"]);
wx.requestPayment({
timeStamp: data['timeStamp'],nonceStr: data['nonceStr'],package: data['package'],signType: data['signType'],paySign: data['paySign'],success: function (res) {
wx.showModal({
title: '支付成功',content: '',})
},fail: function (res) {
console.log(res);
}
})
}
});
}
})
}
/**
- [callback 微信支付回调处理]
- @Author zhengmingzhou
- @DateTime 2018-05-22
- @return function [description]
*/
public function callback(){
vendor("Wechart.WxPay.Api");
vendor("Wechart.NativePay");
vendor("Wechart.WxPay.Data");
vendor("Wechart.WxPay.Notify");
//获取微信返回支付信息
$xml = $GLOBALS['HTTP_RAW_POST_DATA'];
$WxPayData = new WxPayDataBase();
$result = $WxPayData->FromXml($xml);
if($result['return_code'] == 'SUCCESS' && $result['result_code'] == 'SUCCESS'){
//回调逻辑处理。。。
//返回给微信的参数
$data['RETURN_CODE'] = 'SUCCESS';
$data['RETURN_MSG'] = 'OK';
}else{
$data['RETURN_CODE'] = 'FAIL';
$data['RETURN_MSG'] = 'NO';
}
//返回给微信
$xml = self::arrtoxml($data);
echo $xml;
}
/**
- [arrtoxml 格式化返回给微信的数据格式]
- @Author zhengmingzhou
- @DateTime 2018-05-22
- @param [type] $arr [description]
- @return [type] [description]
*/
private function arrtoxml( $arr ){
if(!$arr){
return '';
}else{
$xml = "";
foreach ($arr as $key=>$val)
{
if (is_numeric($val)){
$xml.="<".$key.">".$val."</".$key.">";
}else{
$xml.="<".$key."><![CDATA[".$val."]]></".$key.">";
}
}
$xml.="";
return $xml;
}
}
//微信支付
public function pay(){
//获取openid
if(I("post.code"))
{ //用code获取openid
$code=I("post.code");
$WX_APPID = '';//appid
$WX_SECRET = '';//AppSecret
$url = "https://api.weixin.qq.com/sns/jscode2session?appid=" . $WX_APPID . "&secret=" . $WX_SECRET . "&js_code=" . $code . "&grant_type=authorization_code";
$infos = json_decode(file_get_contents($url));
$openid = $infos->openid;
}
if(I("post.total_fee"))
{
$total_fee=I("post.total_fee");
}
else
{
$total_fee=0.01;
}
$fee = 0.01;//举例充值0.01
$appid = '';//appid
$body = '标题';
$mch_id = ''; //商户号
$nonce_str = $this->nonce_str();//随机字符串
$notify_url = ''; //回调的url【自己填写】
$openid = $openid;
$out_trade_no = $this->order_number();//商户订单号
$spbill_create_ip = '';//服务器的ip【自己填写】;
$total_fee = $fee100;//这里需要100
$trade_type = 'JSAPI';//交易类型 默认
//这里是按照顺序的 因为下面的签名是按照顺序 排序错误 肯定出错
$post['appid'] = $appid;
$post['body'] = $body;
$post['mch_id'] = $mch_id;
$post['nonce_str'] = $nonce_str;//随机字符串
$post['notify_url'] = $notify_url;
$post['openid'] = $openid;
$post['out_trade_no'] = $out_trade_no;
$post['spbill_create_ip'] = $spbill_create_ip;//终端的ip
$post['total_fee'] = $total_fee;//总金额
$post['trade_type'] = $trade_type;
$sign = $this->sign($post);//签名
$post_xml = '
'.$appid.'
'.$body.'
'.$mch_id.'
'.$nonce_str.'
'.$notify_url.'
'.$openid.'
'.$out_trade_no.'
'.$spbill_create_ip.'
'.$total_fee.'
'.$trade_type.'
'.$sign.'
';
//print_r($post_xml);die;
//统一接口prepay_id
$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';
$xml = $this->http_request($url,$post_xml);
$array = $this->xml($xml);//全要大写
//print_r($array);
if($array['RETURN_CODE'] == 'SUCCESS' && $array['RESULT_CODE'] == 'SUCCESS'){
$time = time();
$tmp='';//临时数组用于签名
$tmp['appId'] = $appid;
$tmp['nonceStr'] = $nonce_str;
$tmp['package'] = 'prepay_id='.$array['PREPAY_ID'];
$tmp['signType'] = 'MD5';
$tmp['timeStamp'] = "$time";
$data['state'] = 200;
$data['timeStamp'] = "$time";//时间戳
$data['nonceStr'] = $nonce_str;//随机字符串
$data['signType'] = 'MD5';//签名算法，暂支持 MD5
$data['package'] = 'prepay_id='.$array['PREPAY_ID'];//统一下单接口返回的 prepay_id 参数值，提交格式如：prepay_id=*
$data['paySign'] = $this->sign($tmp);//签名,具体签名方案参见微信公众号支付帮助文档;
$data['out_trade_no'] = $out_trade_no;
}else{
$data['state'] = 0;
$data['text'] = "错误";
$data['RETURN_CODE'] = $array['RETURN_CODE'];
$data['RETURN_MSG'] = $array['RETURN_MSG'];
}
echo json_encode($data);
}
//随机32位字符串
private function nonce_str(){
$result = '';
$str = 'QWERTYUIOPASDFGHJKLZXVBNMqwertyuioplkjhgfdsamnbvcxz';
for ($i=0;$i<32;$i++){
$result .= $str[rand(0,48)];
}
return $result;
}
//生成订单号
private function order_number($openid){
//date('Ymd',time()).time().rand(10,99);//18位
return md5($openid.time().rand(10,99));//32位
}
//签名 $data要先排好顺序
private function sign($data){
$stringA = '';
foreach ($data as $key=>$value){
if(!$value) continue;
if($stringA) $stringA .= '&'.$key."=".$value;
else $stringA = $key."=".$value;
}
$wx_key = '';//申请支付后有给予一个商户账号和密码，登陆后自己设置的key
$stringSignTemp = $stringA.'&key='.$wx_key;
return strtoupper(md5($stringSignTemp));
}
//curl请求
public function http_request($url,$data = null,$headers=array())
{
$curl = curl_init();
if( count($headers) >= 1 ){
curl_setopt($curl,CURLOPT_HTTPHEADER,$headers);
}
curl_setopt($curl,CURLOPT_URL,$url);
curl_setopt($curl,CURLOPT_SSL_VERIFYPEER,FALSE);
curl_setopt($curl,CURLOPT_SSL_VERIFYHOST,FALSE);
if (!empty($data)){
curl_setopt($curl,CURLOPT_POST,1);
curl_setopt($curl,CURLOPT_POSTFIELDS,$data);
}
curl_setopt($curl,CURLOPT_RETURNTRANSFER,1);
$output = curl_exec($curl);
curl_close($curl);
return $output;
}
//获取xml
private function xml($xml){
$p = xml_parser_create();
xml_parse_into_struct($p,$xml,$vals,$index);
xml_parser_free($p);
$data = "";
foreach ($index as $key=>$value) {
if($key == 'xml' || $key == 'XML') continue;
$tag = $vals[$value[0]]['tag'];
$value = $vals[$value[0]]['value'];
$data[$tag] = $value;
}
return $data;
}
}
