1.微信公众平台开通微信支付，审核通过。
2.微信商户平台配置支付授权目录
Paste_Image.png
3.微信交易单号获取类
mchid = '1430532102'; // 微信支付商户号 PartnerID 通过微信支付商户资料审核后邮件发送
$this->appid = 'wx20d62ad060e66486'; //公众号APPID 通过微信支付商户资料审核后邮件发送
$this->key = '8934e7d15453e97507ef7mao521125ab'; //https://pay.weixin.qq.com 帐户设置-安全设置-API安全-API密钥-设置API密钥
}
public function createJsBizPackage($openid, $totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp) {
$config = array(
'mch_id' => $this->mchid,
'appid' => $this->appid,
'key' => $this->key,
);
$unified = array(
'appid' => $config['appid'],
'attach' => '支付', //商家数据包，原样返回
'body' => $orderName,
'mch_id' => $config['mch_id'],
'nonce_str' => $this->createNonceStr(),
'notify_url' => $notifyUrl,
'openid' => $openid, //rade_type=JSAPI，此参数必传
'out_trade_no' => $outTradeNo,
'spbill_create_ip' => '127.0.0.1',
'total_fee' => intval($totalFee * 100), //单位 转为分
'trade_type' => 'JSAPI',
);
$unified['sign'] = $this->getSign($unified, $config['key']);
$responseXml = $this->curlPost('https://api.mch.weixin.qq.com/pay/unifiedorder', $this->arrayToXml($unified));
$unifiedOrder = simplexml_load_string($responseXml, 'SimpleXMLElement', LIBXML_NOCDATA);
if ($unifiedOrder === false) {
die('parse xml error');
}
if ($unifiedOrder->return_code != 'SUCCESS') {
die($unifiedOrder->return_msg);
}
if ($unifiedOrder->result_code != 'SUCCESS') {
die($unifiedOrder->err_code);
/*
NOAUTH 商户无此接口权限
NOTENOUGH 余额不足
ORDERPAID 商户订单已支付
ORDERCLOSED 订单已关闭
SYSTEMERROR 系统错误
APPID_NOT_EXIST APPID不存在
MCHID_NOT_EXIST MCHID不存在
APPID_MCHID_NOT_MATCH appid和mch_id不匹配
LACK_PARAMS 缺少参数
OUT_TRADE_NO_USED 商户订单号重复
SIGNERROR 签名错误
XML_FORMAT_ERROR XML格式错误
REQUIRE_POST_METHOD 请使用post方法
POST_DATA_EMPTY post数据为空
NOT_UTF8 编码格式错误
*/
}
//$unifiedOrder->trade_type 交易类型 调用接口提交的交易类型，取值如下：JSAPI，NATIVE，APP
//$unifiedOrder->prepay_id 预支付交易会话标识 微信生成的预支付回话标识，用于后续接口调用中使用，该值有效期为2小时
//$unifiedOrder->code_url 二维码链接 trade_type为NATIVE是有返回，可将该参数值生成二维码展示出来进行扫码支付
$arr = array(
"appId" => $config['appid'],
"timeStamp" => $timestamp,
"nonceStr" => $this->createNonceStr(),
"package" => "prepay_id=" . $unifiedOrder->prepay_id,
"signType" => 'MD5',
);
$arr['paySign'] = $this->getSign($arr, $config['key']);
return $arr;
}
public function notify() {
$config = array(
'mch_id' => $this->mchid,
'appid' => $this->appid,
'key' => $this->key,
);
$postStr = $GLOBALS["HTTP_RAW_POST_DATA"];
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
if ($postObj === false) {
die('parse xml error');
}
if ($postObj->return_code != 'SUCCESS') {
die($postObj->return_msg);
}
if ($postObj->result_code != 'SUCCESS') {
die($postObj->err_code);
}
$arr = (array) $postObj;
unset($arr['sign']);
if ($this->getSign($arr, $config['key']) == $postObj->sign) {
// $mch_id = $postObj->mch_id; //微信支付分配的商户号
// $appid = $postObj->appid; //微信分配的公众账号ID
// $openid = $postObj->openid; //用户在商户appid下的唯一标识
// $transaction_id = $postObj->transaction_id;//微信支付订单号
// $out_trade_no = $postObj->out_trade_no;//商户订单号
// $total_fee = $postObj->total_fee; //订单总金额，单位为分
// $is_subscribe = $postObj->is_subscribe; //用户是否关注公众账号，Y-关注，N-未关注，仅在公众账号类型支付有效
// $attach = $postObj->attach;//商家数据包，原样返回
// $time_end = $postObj->time_end;//支付完成时间
echo '";
foreach ($arr as $key => $val) {
if (is_numeric($val)) {
$xml .= "<" . $key . ">" . $val . "";
} else
$xml .= "<" . $key . ">";
}
$xml .= " ";
return $xml;
}
/**
* 例如：
* appid： wxd930ea5d5a258f4f
* mch_id： 10000100
* device_info： 1000
* Body： test
* nonce_str： ibuaiVcKdpRxkhJA
* 第一步：对参数按照 key=value 的格式，并按照参数名 ASCII 字典序排序如下：
* stringA="appid=wxd930ea5d5a258f4f&body=test&device_info=1000&mch_i
* d=10000100&nonce_str=ibuaiVcKdpRxkhJA";
* 第二步：拼接支付密钥：
* stringSignTemp="stringA&key=192006250b4c09247ec02edce69f6a2d"
* sign=MD5(stringSignTemp).toUpperCase()="9A0A8659F005D6984697E2CA0A9CF3B7"
*/
public static function getSign($params, $key) {
ksort($params, SORT_STRING);
$unSignParaString = self::formatQueryParaMap($params, false);
$signStr = strtoupper(md5($unSignParaString . "&key=" . $key));
return $signStr;
}
protected static function formatQueryParaMap($paraMap, $urlEncode = false) {
$buff = "";
ksort($paraMap);
foreach ($paraMap as $k => $v) {
if (null != $v && "null" != $v) {
if ($urlEncode) {
$v = urlencode($v);
}
$buff .= $k . "=" . $v . "&";
}
}
$reqPar = '';
if (strlen($buff) > 0) {
$reqPar = substr($buff, 0, strlen($buff) - 1);
}
return $reqPar;
}
}
//方法调用
$res = $wx->createJsBizPackage($openid, $totalFee, $outTradeNo, $orderName, $notifyUrl, $timestamp);
3.回调函数
$mchid,
'appid' => $appid,
'key' => $key,
);
$postStr = file_get_contents("php://input");
if (!$postStr) {
$postStr = "maozi";
}
$postObj = simplexml_load_string($postStr, 'SimpleXMLElement', LIBXML_NOCDATA);
if ($postObj === false) {
die('parse xml error');
}
if ($postObj->return_code != 'SUCCESS') {
die($postObj->return_msg);
}
if ($postObj->result_code != 'SUCCESS') {
die($postObj->err_code);
}
$arr = (array) $postObj;
unset($arr['sign']);
if (getSign($arr, $config['key']) == $postObj->sign) {
$mch_id = $postObj->mch_id; //微信支付分配的商户号
$appid = $postObj->appid; //微信分配的公众账号ID
$openid = $postObj->openid; //用户在商户appid下的唯一标识
$transaction_id = $postObj->transaction_id;//微信支付订单号
$out_trade_no = $postObj->out_trade_no;//商户订单号
$total_fee = $postObj->total_fee; //订单总金额，单位为分
$total_fee = floatval($total_fee/100);
$time_end = $postObj->time_end;//支付完成时间
$time_end = strtotime(substr($time_end,0,4)."-".substr($time_end, 4,2)."-".substr($time_end,6,2)." ".substr($time_end,8,2).":". substr($time_end, 10, 2).":".substr($time_end, 12, 2));
//用户id
$res = mysql_query("select * from cmf_market_order where sn='{$out_trade_no}'",$conn);
$oinfo = mysql_fetch_assoc($res);
$uid = $oinfo['uid'];
//查询订单是否存在
$has_sql = "select * from cmf_market_order_wx where wx_sn='{$transaction_id}'";
$has = mysql_query($has_sql,$conn);
$has = mysql_fetch_assoc($has);
if ($has) {
echo '4.支付页面，直接调用支付接口
微信安全支付