微信支付统一下单，用PHP怎么实现？（代码全）
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h5支付时出现“签名错误”怎么办？注意调用微信“统一下单”接口后返回pre_pay_id后，需要用户再次进行签名返回给html； “支付目录没有授权”，进入微信商家管理后台设置即可。
一、Model层，Wxpay.php
<?php namespace appcommonmodel;
class Wxpay
{
private $appid = 'wxe8*****d4'; //微信公众号appid
private $secret = '37c4*******5f0'; //微信公众号appsecret
private $mchid = '13******02'; //商家号
private $key = '5363e******49e8'; //支付密钥
private $sslcert_path = 'apiclient_cert.pem'; //证书所在绝对路径
private $sslkey_path = 'apiclient_key.pem'; //证书所在绝对路径
public function __construct($appid = '', $secret = '', $mchid = '', $key = '')
{
if(!empty($appid)) $this->appid = $appid;
if(!empty($secret)) $this->secret = $secret;
if(!empty($mchid)) $this->mchid = $mchid;
if(!empty($key)) $this->key= $key;
}
/*
* 微信内H5调起支付
* @params string $openid : 微信用户openid
* @params string $out_trade_no : 商家生成的订单号（唯一性）
* @params int $total_fee : 支付金额，单位分
* return array $ret : 返回支付时所需要的数据
* */
public function payForWeixin($openid,$out_trade_no,$total_fee,$attach='微信支付',$body='微信支付')
{
//支付数据
$data['openid'] = $openid;
$data['out_trade_no'] = $out_trade_no;
$data['total_fee'] = $total_fee*100;
$data['spbill_create_ip'] = $_SERVER["REMOTE_ADDR"];
$data['attach'] = $attach;
$data['body'] = $body;
$data['appid'] = $this->appid;
$data['mch_id'] = $this->mchid;
$data['nonce_str'] = random(12);
$data['trade_type'] = "JSAPI";
$data['notify_url'] = "http://****.com/home/wxpaynofiy/notify.html";
$sign = $this->getParam($data);
$dataXML = "<xml>
<appid>".$data['appid']."</appid>
<attach>".$data['attach']."</attach>
".$data['body']."
<mch_id>".$data['mch_id']."</mch_id>
<nonce_str>".$data['nonce_str']."</nonce_str>
<notify_url>".$data['notify_url']."</notify_url>
<openid>".$data['openid']."</openid>
<out_trade_no>".$data['out_trade_no']."</out_trade_no>
<spbill_create_ip>".$data['spbill_create_ip']."</spbill_create_ip>
<total_fee>".$data['total_fee']."</total_fee>
<trade_type>".$data['trade_type']."</trade_type>
<sign>".$sign."</sign>
</xml>";
$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';
$result = $this->https_post($url,$dataXML);
$ret = $this->xmlToArray($result);
if($ret['return_code'] == 'SUCCESS' && $ret['return_msg'] == 'OK') {
return array(
'appId' => $this->appid,
'timeStamp' => time(),
'nonceStr' => $data['nonce_str'],
'package' => 'prepay_id='.$ret['prepay_id'],
'signType' => 'MD5',
'paySign' => $sign
);
} else {
$this->errorLog("微信支付失败，",$ret);
return null;
}
}
/*
* 微信二维码支付
* @params string $openid : 用户的openid
* @params string $out_trade_no : 商户订单号
* @params number $total_fee : 订单金额，单位分
* return string $code_url : 二维码URL链接
*/
public function payForQrcode($out_trade_no,$total_fee,$body="魔盒CMS",$attach="微信支付")
{
//支付数据
$data['out_trade_no'] = $out_trade_no;
$data['total_fee'] = $total_fee*100;
$data['spbill_create_ip'] = $_SERVER["REMOTE_ADDR"];
$data['attach'] = $attach;
$data['body'] = $body;
$data['appid'] = $this->appid;
$data['mch_id'] = $this->mchid;
$data['nonce_str'] = random(12);
$data['trade_type'] = "NATIVE";
$data['notify_url'] = "http://****.com/home/wxpaynofiy/notify.html";
$sign = $this->getParam($data);
$dataXML = "<xml>
<appid>".$data['appid']."</appid>
<attach>".$data['attach']."</attach>
".$data['body']."
<mch_id>".$data['mch_id']."</mch_id>
<nonce_str>".$data['nonce_str']."</nonce_str>
<notify_url>".$data['notify_url']."</notify_url>
<out_trade_no>".$data['out_trade_no']."</out_trade_no>
<spbill_create_ip>".$data['spbill_create_ip']."</spbill_create_ip>
<total_fee>".$data['total_fee']."</total_fee>
<trade_type>".$data['trade_type']."</trade_type>
<sign>".$sign."</sign>
</xml>";
$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';
$result = $this->https_post($url,$dataXML);
$ret = $this->xmlToArray($result);
if($ret['return_code'] == 'SUCCESS' && $ret['return_msg'] == 'OK') {
return $ret['code_url'];
} else {
$this->errorLog("获取微信支付二维码失败，",$ret);
return null;
}
}
/*
* 订单查询
* @params string $transaction_id : 微信订单号
* @params string $out_trade_no : 商家订单号（与微信订单号二选一）
* */
public function findOrder($out_trade_no)
{
$data['appid'] = $this->appid;
$data['mch_id'] = $this->mchid;
$data['nonce_str'] = random(12);
$data['out_trade_no'] = $out_trade_no;
$sign = $this->getParam($data);
$dataXML = "<xml>
<appid>".$data['appid']."</appid>
<mch_id>".$data['mch_id']."</mch_id>
<nonce_str>".$data['nonce_str']."</nonce_str>
<out_trade_no>".$data['out_trade_no']."</out_trade_no>
<sign>".$sign."</sign>
</xml>";
$url = 'https://api.mch.weixin.qq.com/pay/orderquery';
$result = $this->https_post($url,$dataXML);
$ret = $this->xmlToArray($result);
if($ret['return_code'] == 'SUCCESS' && $ret['return_msg'] == 'OK') {
return $ret;
} else {
$this->errorLog("查询微信支付订单失败，",$ret);
return null;
}
}
/*
* 退款订单查询
* @params string $transaction_id : 微信订单号
* @params string $out_trade_no : 商家订单号（与微信订单号二选一）
* */
public function findRefundOrder($out_trade_no)
{
$data['appid'] = $this->appid;
$data['mch_id'] = $this->mchid;
$data['nonce_str'] = random(12);
$data['out_trade_no'] = $out_trade_no;
$sign = $this->getParam($data);
$dataXML = "<xml>
<appid>".$data['appid']."</appid>
<mch_id>".$data['mch_id']."</mch_id>
<nonce_str>".$data['nonce_str']."</nonce_str>
<out_trade_no>".$data['out_trade_no']."</out_trade_no>
<sign>".$sign."</sign>
</xml>";
$url = 'https://api.mch.weixin.qq.com/pay/refundquery';
$result = $this->https_post($url,$dataXML);
$ret = $this->xmlToArray($result);
if($ret['return_code'] == 'SUCCESS' && $ret['return_msg'] == 'OK') {
return $ret;
} else {
$this->errorLog("查询微信支付退款订单失败，",$ret);
return $ret['err_code_des'];
}
}
/*
* 申请退款
* @params string $out_trade_no : 商户订单号
* @params string $out_refund_no : 商户退款单号
* @params int $total_fee : 订单金额
* @params int $refund_fee : 退款金额
* @params string $refund_desc : 退款原因
* */
public function refund($out_trade_no,$out_refund_no,$total_fee,$refund_fee,$refund_desc='退款')
{
$data['appid'] = $this->appid;
$data['mch_id'] = $this->mchid;
$data['nonce_str'] = random(12);
$data['out_trade_no'] = $out_trade_no;
$data['out_refund_no'] = $out_refund_no;
$data['total_fee'] = $total_fee*100;
$data['refund_fee'] = $refund_fee*100;
$data['refund_desc'] = $refund_desc;
$data['notify_url'] = "http://*****.com/home/wxpaynofiy/refund.html";
$sign = $this->getParam($data);
$dataXML = "<xml>
<appid>".$data['appid']."</appid>
<mch_id>".$data['mch_id']."</mch_id>
<nonce_str>".$data['nonce_str']."</nonce_str>
<out_trade_no>".$data['out_trade_no']."</out_trade_no>
<out_refund_no>".$data['out_refund_no']."</out_refund_no>
<total_fee>".$data['total_fee']."</total_fee>
<refund_fee>".$data['refund_fee']."</refund_fee>
<refund_desc>".$data['refund_desc']."</refund_desc>
<notify_url>".$data['notify_url']."</notify_url>
<sign>".$sign."</sign>
</xml>";
$url = 'https://api.mch.weixin.qq.com/secapi/pay/refund';
$result = $this->https_post($url,$dataXML,true);
$ret = $this->xmlToArray($result);
if($ret['return_code'] == 'SUCCESS' && $ret['return_msg'] == 'OK') {
return $ret;
} else {
$this->errorLog("微信退款失败，",$ret);
return null;
}
}
/*
* 企业付款至用户零钱
* @params string $openid : 用户openid
* @params int $total_fee : 付款金额，单位分
* @params string $out_trade_no : 商家订单号
* @params string $username : 微信用户名称（注意微信昵称若为空时支付会出错）
* @params string $desc : 付款描述
* @params string $check_name : 是否检测用户名
* */
public function payForUser($openid,$total_fee,$out_trade_no,$username='魔盒CMS',$desc='魔盒CMS付款给用户',$check_name='NO_CHECK')
{
$data['amount'] = $total_fee*100;
$data['check_name'] = $check_name;
$data['desc'] = $desc;
$data['mch_appid'] = $this->appid;
$data['mchid'] = $this->mchid;
$data['nonce_str'] = random(12);
$data['openid'] = $openid;
$data['partner_trade_no'] = $out_trade_no;
$data['re_user_name'] = $username;
$data['spbill_create_ip'] = $_SERVER["REMOTE_ADDR"];
$sign = $this->getParam($data);
$dataXML="<xml>
<mch_appid>".$data['mch_appid']."</mch_appid>
<mchid>".$data['mchid']."</mchid>
<nonce_str>".$data['nonce_str']."</nonce_str>
<partner_trade_no>".$data['partner_trade_no']."</partner_trade_no>
<openid>".$data['openid']."</openid>
<check_name>".$data['check_name']."</check_name>
<re_user_name>".$data['re_user_name']."</re_user_name>
<amount>".$data['amount']."</amount>
<desc>".$data['desc']."</desc>
<spbill_create_ip>".$data['spbill_create_ip']."</spbill_create_ip>
<sign>".$sign."</sign>
</xml>";
$url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers';
$result = $this->https_post($url,$dataXML,true);
$ret = $this->xmlToArray($result);
if($ret['return_code']=='SUCCESS' && $ret['result_code'] == 'SUCCESS')
{
//支付成功返回商户订单号、微信订单号、微信支付成功时间
$result['partner_trade_no'] = $ret['partner_trade_no'];
$result['payment_no'] = $ret['payment_no'];
$result['payment_time'] = $ret['payment_time'];
return $ret;
} else {
$this->errorLog('付款给用户失败',$ret);
return null;
}
}
/*
* 普通红包
* @params string $out_trade_no : 商家订单号
* @params string $openid : 接收红包用户的openid
* @params int $total_fee : 红包金额，单位分
* @params int $total_num : 红包发放总人数
* @params string $wishing : 红包祝福语
* @params string $act_name : 活动名称
* @params string $remark : 备注
* @params string $scene_id ：场景值ID。发放红包使用场景，红包金额大于200或者小于1元时必传。PRODUCT_1:商品促销、PRODUCT_2:抽奖、PRODUCT_3:虚拟物品兑奖 、PRODUCT_4:企业内部福利、PRODUCT_5:渠道分润、PRODUCT_6:保险回馈、PRODUCT_7:彩票派奖、PRODUCT_8:税务刮奖
* */
public function redPack($openid,$total_fee,$out_trade_no,$total_num = 1,$wishing = '感谢您光临***平台进行购物',$act_name='***购物发红包',$remark = '购物领红包')
{
$data['mch_billno'] = $out_trade_no;
$data['mch_id'] = $this->mchid;
$data['wxappid'] = $this->appid;
$data['send_name'] = '发送红包者的名称';
$data['re_openid'] = $openid;
$data['total_amount'] = $total_fee;
$data['total_num'] = $total_num;
$data['wishing'] = $wishing;
$data['client_ip'] = $_SERVER["REMOTE_ADDR"];
$data['act_name'] = $act_name;
$data['remark'] = $remark;
$data['nonce_str'] = random(12);
$sign = $this->getParam($data);
$dataXML="<xml>
<sign>".$sign."</sign>
<mch_billno>".$data['mch_billno']."</mch_billno>
<mch_id>".$data['mch_id']."</mch_id>
<wxappid>".$data['wxappid']."</wxappid>
<send_name>".$data['send_name']."</send_name>
<re_openid>".$data['re_openid']."</re_openid>
<total_amount>".$data['total_amount']."</total_amount>
<total_num>".$data['total_num']."</total_num>
<wishing>".$data['wishing']."</wishing>
<client_ip>".$data['client_ip']."</client_ip>
<act_name>".$data['act_name']."</act_name>
<remark>".$data['remark']."</remark>
<nonce_str>".$data['nonce_str']."</nonce_str>
</xml>";
$url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack';
$result = $this->https_post($url,$dataXML,true);
$ret = $this->xmlToArray($result);
if($ret['return_code']=='SUCCESS' && $ret['result_code'] == 'SUCCESS')
{
return $ret;
} else {
$this->errorLog('发放普通红包失败',$ret);
return $ret['err_code_des'];
}
}
/*
* 裂变红包：一次可以发放一组红包。首先领取的用户为种子用户，种子用户领取一组红包当中的一个，并可以通过社交分享将剩下的红包给其他用户。
* 裂变红包充分利用了人际传播的优势。
* @params string $out_trade_no : 商家订单号
* @params string $openid : 接收红包用户的openid
* @params int $total_fee : 红包金额，单位分
* @params int $total_num : 红包发放总人数
* @params string $wishing : 红包祝福语
* @params string $act_name : 活动名称
* @params string $remark : 备注
* @params string $scene_id ：场景值ID。发放红包使用场景，红包金额大于200或者小于1元时必传。PRODUCT_1:商品促销、PRODUCT_2:抽奖、PRODUCT_3:虚拟物品兑奖 、PRODUCT_4:企业内部福利、PRODUCT_5:渠道分润、PRODUCT_6:保险回馈、PRODUCT_7:彩票派奖、PRODUCT_8:税务刮奖
* */
public function redPackGroup($openid,$total_fee,$out_trade_no,$total_num,$wishing = '感谢您光临***进行购物',$act_name='**购物发红包',$remark = '购物领红包')
{
$data['mch_billno'] = $out_trade_no;
$data['mch_id'] = $this->mchid;
$data['wxappid'] = $this->appid;
$data['send_name'] = '发送红包者的名称';
$data['re_openid'] = $openid;
$data['total_amount'] = $total_fee;
$data['amt_type'] = 'ALL_RAND'; //ALL_RAND—全部随机,商户指定总金额和红包发放总人数，由微信支付随机计算出各红包金额
$data['total_num'] = $total_num;
$data['wishing'] = $wishing;
$data['client_ip'] = $_SERVER["REMOTE_ADDR"];
$data['act_name'] = $act_name;
$data['remark'] = $remark;
$data['nonce_str'] = random(12);
$sign = $this->getParam($data);
$dataXML="<xml>
<sign>".$sign."</sign>
<mch_billno>".$data['mch_billno']."</mch_billno>
<mch_id>".$data['mch_id']."</mch_id>
<wxappid>".$data['wxappid']."</wxappid>
<send_name>".$data['send_name']."</send_name>
<re_openid>".$data['re_openid']."</re_openid>
<total_amount>".$data['total_amount']."</total_amount>
<amt_type>".$data['amt_type']."</amt_type>
<total_num>".$data['total_num']."</total_num>
<wishing>".$data['wishing']."</wishing>
<client_ip>".$data['client_ip']."</client_ip>
<act_name>".$data['act_name']."</act_name>
<remark>".$data['remark']."</remark>
<nonce_str>".$data['nonce_str']."</nonce_str>
</xml>";
$url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/sendgroupredpack';
$result = $this->https_post($url,$dataXML,true);
$ret = $this->xmlToArray($result);
if($ret['return_code']=='SUCCESS' && $ret['result_code'] == 'SUCCESS')
{
return $ret;
} else {
$this->errorLog('发放裂变红包失败',$ret);
return $ret['err_code_des'];
}
}
/*
* 查询红包记录
* @params string $out_trade_no : 商家订单号
* */
public function findRedPack($out_trade_no)
{
$data['mch_billno'] = $out_trade_no;
$data['mch_id'] = $this->mchid;
$data['appid'] = $this->appid;
$data['bill_type'] = 'MCHT'; //MCHT:通过商户订单号获取红包信息。
$data['nonce_str'] = random(12);
$sign = $this->getParam($data);
$dataXML="<xml>
<sign>".$sign."</sign>
<mch_billno>".$data['mch_billno']."</mch_billno>
<mch_id>".$data['mch_id']."</mch_id>
<appid>".$data['appid']."</appid>
<bill_type>".$data['bill_type']."</bill_type>
<nonce_str>".$data['nonce_str']."</nonce_str>
</xml>";
$url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/gethbinfo';
$result = $this->https_post($url,$dataXML,true);
$ret = $this->xmlToArray($result);
if($ret['return_code']=='SUCCESS' && $ret['result_code'] == 'SUCCESS')
{
return $ret;
} else {
$this->errorLog('查询红包记录失败',$ret);
return $ret['err_code_des'];
}
}
/*
* 获取用户微信的OPENID
* */
public function openid($c=false)
{
if($_GET@['state']!="zgm"){
$t = $c ? "snsapi_userinfo" : "snsapi_base";
$url=urlencode(get_url());
$url="https://open.weixin.qq.com/connect/oauth2/authorize?appid=".$this->appid."&redirect_uri=".$url."&response_type=code&scope=".$t."&state=zgm#wechat_redirect";
echo "<script>window.location.href='$url';</script>";
exit;
}
if($_GET@['code']){
$url="https://api.weixin.qq.com/sns/oauth2/access_token?appid=".$this->appid."&secret=".$this->secret."&code=".$_GET@['code']."&grant_type=authorization_code";
$wx_db=json_decode($this->https_get($url));
if($c){
$url_2="https://api.weixin.qq.com/sns/userinfo?access_token=".$wx_db->access_token."&openid=".$wx_db->openid."&lang=zh_CN";
$db=json_decode($this->https_get($url_2));
return $db;
}else{
return $wx_db->openid;
}
}
}
/*
* 发起网络GET请求
* @params string $url : URL链接
*/
private function https_get($url)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, TRUE);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
curl_setopt($curl, CURLOPT_HEADER, FALSE) ;
curl_setopt($curl, CURLOPT_TIMEOUT,60);
if (curl_errno($curl)) {
return 'Errno'.curl_error($curl);
}
else{$result=curl_exec($curl);}
curl_close($curl);
return $result;
}
//对参数排序，生成MD5加密签名
private function getParam($paramArray, $isencode=false)
{
$paramStr = '';
ksort($paramArray);
$i = 0;
foreach ($paramArray as $key => $value)
{
if ($key == 'Signature'){
continue;
}
if ($i == 0){
$paramStr .= '';
}else{
$paramStr .= '&';
}
$paramStr .= $key . '=' . ($isencode?urlencode($value):$value);
++$i;
}
$stringSignTemp=$paramStr."&key=".$this->key;
$sign=strtoupper(md5($stringSignTemp));
return $sign;
}
//POST提交数据
private function https_post($url,$data,$ssl = false)
{
$ch = curl_init ();
curl_setopt ( $ch, CURLOPT_URL, $url );
curl_setopt ( $ch, CURLOPT_CUSTOMREQUEST, "POST" );
curl_setopt ( $ch, CURLOPT_SSL_VERIFYPEER, FALSE );
curl_setopt ( $ch, CURLOPT_SSL_VERIFYHOST, FALSE );
if($ssl) {
curl_setopt ( $ch,CURLOPT_SSLCERT,$this->sslcert_path);
curl_setopt ( $ch,CURLOPT_SSLKEY,$this->sslkey_path);
}
curl_setopt ( $ch, CURLOPT_FOLLOWLOCATION, 1 );
curl_setopt ( $ch, CURLOPT_AUTOREFERER, 1 );
curl_setopt ( $ch, CURLOPT_POSTFIELDS, $data );
curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true );
$result = curl_exec($ch);
if (curl_errno($ch)) {
return 'Errno: '.curl_error($ch);
}
curl_close($ch);
return $result;
}
/*
* XML转array
* @params xml $xml : xml 数据
* return array $data : 转义后的array数组
*/
private function xmlToArray($xml)
{
libxml_disable_entity_loader(true);
$xmlstring = simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA);
$val = json_decode(json_encode($xmlstring),true);
return $val;
}
/*
* 记录日志
* @params string $msg : 提示语句
* @params array $ret : 错误结果
*/
private function errorLog($msg,$ret)
{
file_put_contents(ROOT_PATH . 'runtime/error/wxpay.log', "[" . date('Y-m-d H:i:s') . "] ".$msg."," .json_encode($ret).PHP_EOL, FILE_APPEND);
}
}
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