首先在微信商户开通此功能（开通可能不易）
拿到 商户号 证书 还有证书序列号 关联商户的appid(如果是app在开放平台申请appid小程序的话那就是小程序的appid) 注意一定要关联appid
在微信商户号里 开通 api 权限 以及添加服务器的ip
上代码
public function zhuanzhang(){ $post_data = [ "appid" => 'wx0b468e83f769fc09',//appid "out_batch_no" => 'wlss'.date('YmdHis').mt_rand(100000, 999900),//商家批次单号 "batch_name" => '提现到账',//批次名称 "batch_remark" => '提现到账',//批次备注 "total_amount" => intval(strval($params['money'] * 100)),// 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' => 'wlss'.date('YmdHis').mt_rand(100000, 999900), 'transfer_amount' => intval(strval($params['money'] * 100)), 'transfer_remark' => '提现到账', 'openid' => $openid, ] ] ]; $url = 'https://api.mch.weixin.qq.com/v3/transfer/batches'; $result = self::wx_post($url, json_encode($post_data, JSON_UNESCAPED_SLASHES|JSON_UNESCAPED_UNICODE)); $result = json_decode($result, true); if(isset($result['code'])){ $this->error($result['massage']); }}public static function wx_post($url, $param) { $authorization = self::getV3Sign($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 $res; } public static function getV3Sign($url, $http_method, $body) { $nonce = strtoupper(self::createNonceStr(32)); $timestamp = time(); $url_parts = parse_url($url); $canonical_url = ($url_parts['path'] . (!empty($url_parts['query']) ? "?${url_parts['query']}" : "")); $cert_dir = '证书路径'; //绝对路径 $sslKeyPath = $cert_dir."apiclient_key.pem"; //拼接参数 $message = $http_method . "\n" . $canonical_url . "\n" . $timestamp . "\n" . $nonce . "\n" . $body . "\n"; $private_key = self::getPrivateKey($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"', "商户号", $nonce, $timestamp, "证书序列号", $sign); return $token; } public static function createNonceStr($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 $str; } public static function getPrivateKey($filepath = '') { if (empty($filepath)) { //私钥位置 $cert_dir = '证书位置'; $filepath = $cert_dir."apiclient_key.pem"; } return openssl_get_privatekey(file_get_contents($filepath)); }到此微信商户转账到用户零钱结束 （注意微信商户号里一定要有钱） //不然会报错
来源地址：https://blog.csdn.net/qq_39870660/article/details/130200679
