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下面是接口的注意事项截图,需要认真细看。

完整代码:
/**
* @notes 商家转账到零钱
*/
public static function transfer($withdrawApply,$userAuth,$config)
{
//请求URL
$url = 'https://api.mch.weixin.qq.com/v3/transfer/batches';
//请求方式
$http_method = 'POST';
//请求参数
$data = [
'appid' => $config['app_id'],//申请商户号的appid或商户号绑定的appid(企业号corpid即为此appid)
'out_batch_no' => $withdrawApply['batch_no'],//商户系统内部的商家批次单号,要求此参数只能由数字、大小写字母组成,在商户系统内部唯一
'batch_name' => '提现至微信零钱',//该笔批量转账的名称
'batch_remark' => '提现至微信零钱',//转账说明,UTF8编码,最多允许32个字符
'total_amount' => $withdrawApply['left_money'] * 100,//转账金额单位为“分”。转账总金额必须与批次内所有明细转账金额之和保持一致,否则无法发起转账操作
'total_num' => 1,//一个转账批次单最多发起三千笔转账。转账总笔数必须与批次内所有明细之和保持一致,否则无法发起转账操作
'transfer_detail_list' => [
[//发起批量转账的明细列表,最多三千笔
'out_detail_no' => $withdrawApply['sn'],//商户系统内部区分转账批次单下不同转账明细单的唯一标识,要求此参数只能由数字、大小写字母组成
'transfer_amount' => $withdrawApply['left_money'] * 100,//转账金额单位为分
'transfer_remark' => '提现至微信零钱',//单条转账备注(微信用户会收到该备注),UTF8编码,最多允许32个字符
'openid' => $userAuth['openid'],//openid是微信用户在公众号appid下的唯一用户标识(appid不同,则获取到的openid就不同),可用于永久标记一个用户
]]
];
if ($withdrawApply['left_money'] >= 2000) {
if (empty($withdrawApply['real_name'])) {
throw new \Exception('转账金额 >= 2000元,收款用户真实姓名必填');
}
$data['transfer_detail_list'][0]['user_name'] = self::getEncrypt($withdrawApply['real_name'],$config);
}
$token = self::token($url,$http_method,$data,$config);//获取token
$result = self::https_request($url,json_encode($data),$token);//发送请求
$result_arr = json_decode($result,true);
if(!isset($result_arr['create_time'])) {//批次受理失败
throw new \Exception($result_arr['message']);
}
//批次受理成功,进行操作
return true;
}
/**
* @notes 获取签名
*/
public static function token($url,$http_method,$data,$config)
{
$timestamp = time();//请求时间戳
$url_parts = parse_url($url);//获取请求的绝对URL
$nonce = $timestamp.rand('10000','99999');//请求随机串
$body = empty($data) ? '' : json_encode((object)$data);//请求报文主体
$stream_opts = [
"ssl" => [
"verify_peer"=>false,
"verify_peer_name"=>false,
]
];
$apiclient_cert_arr = openssl_x509_parse(file_get_contents($config['cert_path'],false, stream_context_create($stream_opts)));
$serial_no = $apiclient_cert_arr['serialNumberHex'];//证书序列号
$mch_private_key = file_get_contents($config['key_path'],false, stream_context_create($stream_opts));//密钥
$merchant_id = $config['mch_id'];//商户id
$canonical_url = ($url_parts['path'] . (!empty($url_parts['query']) ? "?${url_parts['query']}" : ""));
$message = $http_method."\n".
$canonical_url."\n".
$timestamp."\n".
$nonce."\n".
$body."\n";
openssl_sign($message, $raw_sign, $mch_private_key, 'sha256WithRSAEncryption');
$sign = base64_encode($raw_sign);//签名
$schema = 'WECHATPAY2-SHA256-RSA2048';
$token = sprintf('mchid="%s",nonce_str="%s",timestamp="%d",serial_no="%s",signature="%s"',
$merchant_id, $nonce, $timestamp, $serial_no, $sign);//微信返回token
return $schema.' '.$token;
}
/**
* @notes 发送请求
*/
public static function https_request($url,$data,$token)
{
$curl = curl_init();
curl_setopt($curl, CURLOPT_URL, (string)$url);
curl_setopt($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);
//添加请求头
$headers = [
'Authorization:'.$token,
'Accept: application/json',
'Content-Type: application/json; charset=utf-8',
'User-Agent:Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36',
];
if(!empty($headers)){
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
}
$output = curl_exec($curl);
curl_close($curl);
return $output;
}
/**
* @notes 敏感信息加解密
*/
public static function getEncrypt($str,$config)
{
//$str是待加密字符串
$public_key = file_get_contents($config['cert_path']);
$encrypted = '';
if (openssl_public_encrypt($str, $encrypted, $public_key, OPENSSL_PKCS1_OAEP_PADDING)) {
//base64编码
$sign = base64_encode($encrypted);
} else {
throw new \Exception('encrypt failed');
}
return $sign;
}
/**
* @notes 商家明细单号查询
*/
public static function detailsQuery($withdrawApply,$config)
{
//请求URL
$url = 'https://api.mch.weixin.qq.com/v3/transfer/batches/out-batch-no/'.$withdrawApply['batch_no'].'/details/out-detail-no/'.$withdrawApply['sn'];
//请求方式
$http_method = 'GET';
//请求参数
$data = [];
$token = self::token($url,$http_method,$data,$config);//获取token
$result = self::https_request($url,$data,$token);//发送请求
$result_arr = json_decode($result,true);
return $result_arr;
}
注意事项:
1.明细转账金额 >= 2,000元,收款用户姓名必填;
2.同一批次转账明细中,收款用户姓名字段需全部填写、或全部不填写;
3.参数里带有收款用户姓名,得在HTTP头部增加Wechatpay-Serial,Wechatpay-Serial后面带上平台证书序列号。
4.转账受理成功后,需要调用《商家明细单号查询》接口来判断转账状态;
最后补上微信开发文档:商家转账到零钱-文档中心-微信支付商户平台 |
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