$appid = '';//如果是公众号 就是公众号的appid;小程序就是小程序的appid$body = '描述';$mch_id = '商户号';$KEY = '商户平台的key值';$nonce_str = $this->getRandCode();//随机字符串$notify_url = 'https://xxx.xxxxxx.com/xxx/xxxx/xxxxx/login/notify_url'; //支付完成回调地址url,不能带参数$out_trade_no = date('YmdHis', time());//$order_id;//商户订单号$spbill_create_ip = $_SERVER['SERVER_ADDR'];$trade_type = 'JSAPI';//交易类型 默认JSAPI//这里是按照顺序的 因为下面的签名是按照(字典序)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'] = $openid['wx_openid'];$post['out_trade_no'] = $out_trade_no;$post['spbill_create_ip'] = $spbill_create_ip;//服务器终端的ip$post['total_fee'] = intval($total_fee["current_price"]*100); //总金额 最低为一分钱 必须是整数$post['trade_type'] = $trade_type;$sign = $this->MakeSign($post,$KEY); //签名s
$post_xml = '<xml> <appid><![CDATA['.$appid.']]></appid> <body><![CDATA['.$body.']]></body> <mch_id><![CDATA['.$mch_id.']]></mch_id> <nonce_str><![CDATA['.$nonce_str.']]></nonce_str> <notify_url><![CDATA['.$notify_url.']]></notify_url> <openid><![CDATA['.$openid["wx_openid"].']]></openid> <out_trade_no><![CDATA['.$out_trade_no.']]></out_trade_no> <spbill_create_ip><![CDATA['.$spbill_create_ip.']]></spbill_create_ip> <total_fee><![CDATA['.intval($total_fee["current_price"]*100).']]></total_fee> <trade_type><![CDATA['.$trade_type.']]></trade_type> <sign><![CDATA['.$sign.']]></sign></xml>';//统一下单接口prepay_id
$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';$xml = ihttp_post($url,$post_xml); //POST方式请求http$array = $this->xml2array($xml['content']); //将【统一下单】api返回xml数据转换成数组，全要大写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; $data['timeStamp'] = "$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'] = $this->MakeSign($tmp,$KEY); //签名,具体签名方案参见微信公众号支付帮助文档;}
//获取到$nonce_strpublic function getRandCode(){ $charts = "ABCDEFGHJKLMNPQRSTUVWXYZabcdefghjkmnpqrstuvwxyz0123456789"; $max = strlen($charts); $noncestr = ""; for($i = 0; $i < 16; $i++) { $noncestr .= $charts[mt_rand(0, $max)]; } return $noncestr;}
/** * 生成签名, $KEY就是支付key * @return 签名 */public function MakeSign($params,$KEY){ //签名步骤一：按字典序排序数组参数 ksort($params); $string = $this->ToUrlParams($params); //参数进行拼接key=value&k=v //签名步骤二：在string后加入KEY $string = $string . "&key=".$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 $string = strtoupper($string); return $string;}
public function ToUrlParams( $params ){ $string = ''; if( !empty($params) ){ $array = array(); foreach( $params as $key => $value ){ $array[] = $key.'='.$value; } $string = implode("&",$array); } return $string;}
//获取xml里面数据，转换成arraypublic function xml2array($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;}//支付成功后的回调url处理 (https://xxx.xxxxxx.com/xxx/xxxx/xxxxx/login/notify_url)
这里需要导入微信提供的SDK
public function notify_url() { vendor('WeixinPay.lib.WxPay#Api'); $msg = ''; \WxPayApi::notify(function($res){ $log_file = 'b.txt'; //当前链接 //$url = $_SERVER['REQUEST_URI'] ? $_SERVER['REQUEST_URI'] : $_SERVER['PHP_SELF']; //写入的内容 $con = ''; foreach ($res as $k => $v) { $con .= "[time:]".date('Y-m-d H:i:s',time()) . " [{$k}] => {$v} \r\n"; } $con .= "===================================================== \r\n"; //写入到log文本中 file_put_contents($log_file,$con, FILE_APPEND); if($res['return_code'] == 'SUCCESS' && $res['result_code'] == 'SUCCESS'){ $data = array(); $data['weixin_order_id'] = $res['transaction_id']; $data['out_trade_no'] = $res['out_trade_no']; $data['bank_type'] = $res['bank_type']; $data['status'] = 4; $cus_id = M('customers')->where('wx_openid="%s"', $res['openid'])->field('id')->find(); $cus_id = $cus_id['id']; $aa = M('orders')->where('customer_id="%s" and errmsg="" and package=""', $cus_id)->save($data); if (!$aa) { echo '';exit; } else { $this->return_success(); } } else { echo '';exit; } }, $msg); //echo $msg;}
public function return_success(){ $return['return_code'] = 'SUCCESS'; $return['return_msg'] = 'OK'; $xml_post = '<xml> <return_code><![CDATA[' . $return["return_code"] . ']]></return_code> <return_msg><![CDATA['. $return["return_msg"] .']]></return_msg> </xml>'; echo $xml_post;exit;}
转载于:https://www.cnblogs.com/comeping/p/9116846.html
相关资源：微信支付-微信小程序源码
