V3版本的微信商家转账到零钱的接口—俗称提现接口
企业转账到零钱只能对接这个v3的不能对接原来的v2版会提示没权限
注意事项
一：开通条件：需满足入驻满90天，连续正常交易30天，保持正常健康交易。–只要能开通就是能用的
二：分为页面发起和api接口操作，均需要手动开启才可。
三：需要设置IP白名单，否则不能发起接口调用。
四：商家转账的户口为商户平台的运营账户，非商户基本账户，注意保证运营账户的余额充足！
五：注意提现额度的变化，超过设置的免密额度，该笔提现会自动发送给超级管理员审核，输入密码确定此笔提现操作。
代码语言：javascript复制class Withdraw
{
public $mchid = '你的商户id';
public $appid = '小程序appid';
public $serial_no = '你的证书序列号'; // 证书序列号，不知道怎么获取的看上面的图
public function transfer($openid, $trade_no, $money, $desc='备注说明')
{
$money = (int)($money * 100);
$post_data = [
"appid" => $this->appid,//appid
"out_batch_no" => $trade_no,//商家批次单号
"batch_name" => $desc,//批次名称
"batch_remark" => $desc,//批次备注
"total_amount" => $money,// 转账金额单位为“分”
"total_num" => 1, // 转账总笔数
//此处可以多笔提现 组合二维数组放到transfer_detail_list即可 我这里单笔操作，写死了
"transfer_detail_list" => [
[
'out_detail_no' => $trade_no,
'transfer_amount' => $money,
'transfer_remark' => $desc,
'openid' => $openid,
]
]
];
$url = 'https://api.mch.weixin.qq.com/v3/transfer/batches';
//JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE 防止中文被转义
$result = $this->wx_post($url, json_encode($post_data, JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE));
$result = json_decode($result, true);
if (isset($result['prepay_id'])) {
return $result['prepay_id'];
}
return $result;
}
/**post请求
* @param $url
* @param $param
* @return bool|string
*/
private function wx_post($url, $param)
{
$authorization = $this->getV3Sign($url, "POST", $param);
$curl = curl_init();
$headers = [
'Authorization:' . $authorization,
'Accept:application/json',
'Content-Type:application/json;charset=utf-8',
'User-Agent:Mozilla/5.0 (Windows NT 10.0; WOW64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.132 Safari/537.36',
];
curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
curl_setopt($curl, CURLOPT_TIMEOUT, 500);
curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
curl_setopt($curl, CURLOPT_URL, $url);
curl_setopt($curl, CURLOPT_POSTFIELDS, $param);
curl_setopt($curl, CURLOPT_POST, true);
$res = curl_exec($curl);
curl_close($curl);
return $res;
}
/**
* 微信提现V3签名
* @param $url
* @param $http_method
* @param $body
* @return string
*/
private function getV3Sign($url, $http_method, $body)
{
$nonce = strtoupper($this->createNonceStr(32));
$timestamp = time();
$url_parts = parse_url($url);
$canonical_url = ($url_parts['path'] . (!empty($url_parts['query']) ? "?${url_parts['query']}" : ""));
$cert_dir = ROOT_PATH.DS."config".DS."payment_cert".DS."wechatpay".DS;
$sslKeyPath = $cert_dir."apiclient_key.pem";
//拼接参数
$message = $http_method . "n" .
$canonical_url . "n" .
$timestamp . "n" .
$nonce . "n" .
$body . "n";
$private_key = $this->getPrivateKey($sslKeyPath);
openssl_sign($message, $raw_sign, $private_key, 'sha256WithRSAEncryption');
$sign = base64_encode($raw_sign);
$token = sprintf('WECHATPAY2-SHA256-RSA2048 mchid="%s",nonce_str="%s",timestamp="%s",serial_no="%s",signature="%s"', $this->mchid, $nonce, $timestamp, $this->serial_no, $sign);
return $token;
}
/**
* 生成随机32位字符串
* @param $length
* @return string
*/
public function createNonceStr($length = 16) { //生成随机16个字符的字符串
$chars = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
$str = "";
for ($i = 0; $i < $length; $i ) {
$str .= substr($chars, mt_rand(0, strlen($chars) - 1), 1);
}
return $str;
}
/**
* 获取私钥
* @param $filepath
* @return false|resource
*/
private function getPrivateKey($filepath = '')
{
if (empty($filepath)) {
//私钥位置
$cert_dir = ROOT_PATH.DS."config".DS."payment_cert".DS."wechatpay".DS;
$filepath = $cert_dir."apiclient_key.pem";
}
return openssl_get_privatekey(file_get_contents($filepath));
}
}未经允许不得转载：肥猫博客 » PHP实现微信提现V3版本商家转账到零钱–企业转账到零钱
