公眾號給使用者發紅包
阿新 • • 發佈：2020-08-01
場景：公眾號裡面，通過指定openid給使用者傳送紅包，比如使用者在公眾號中提現，發福利紅包都可以使用。
直接上程式碼：
class wxHongbao { // 商戶id private $mch_id = '********'; // 訂單號 private $mch_billno = ''; // 公眾號id private $wxappid = ''; // 呼叫介面機器ip private $client_ip = ''; // 商戶平臺金鑰 private $apikey = ''; // 紅包發放人數 private $total_num = 1; // 紅包傳送者名稱 private $send_name = '正義的程式猿'; // 祝福語 private $wishing = '歡迎再次參與'; // 活動名稱 private $act_name = ''; // 備註 private $remark = ''; // 隨機字串 private $nonce_str = ''; // 接收使用者的openid private $re_openid = ''; //紅包金額，單位 分 private $total_amount = 1; // 簽名 private $sign; /** * 活動資訊 * @var array */ private $risk_info; // 發放紅包使用場景，紅包金額大於200或者小於1元時必傳 // PRODUCT_1:商品促銷 // PRODUCT_2:抽獎 // PRODUCT_3:虛擬物品兌獎 // PRODUCT_4:企業內部福利 // PRODUCT_5:渠道分潤 // PRODUCT_6:保險回饋 // PRODUCT_7:彩票派獎 // PRODUCT_8:稅務刮獎 private $scene_id; // 證書 private $apiclient_cert; private $apiclient_key; private $apiclient_ca; private $api_hb_single = "https://api.mch.weixin.qq.com/mmpaymkttransfers/sendredpack"; /** * wxHongbao constructor. */ public function __construct() { // todo 初始化證書目錄 $this->apiclient_cert = ''; $this->apiclient_key = ''; $this->apiclient_ca = ''; } /** * @return string */ public function getSendName() { return $this->send_name; } /** * @param string $send_name * @return $this */ public function setSendName($send_name) { $this->send_name = $send_name; return $this; } /** * @return string */ public function getWishing() { return $this->wishing; } /** * @param string $wishing * @return $this */ public function setWishing($wishing) { $this->wishing = $wishing; return $this; } /** * @return string */ public function getActName() { return $this->act_name; } /** * @param string $act_name * @return $this */ public function setActName($act_name) { $this->act_name = $act_name; return $this; } /** * @return string */ public function getRemark() { return $this->remark; } /** * @param string $remark * @return $this */ public function setRemark($remark) { $this->remark = $remark; return $this; } /** * @return string */ public function getReOpenid() { return $this->re_openid; } /** * @param string $re_openid * @return $this */ public function setReOpenid($re_openid) { $this->re_openid = $re_openid; return $this; } /** * @return int */ public function getTotalAmount() { return $this->total_amount; } /** * 紅包金額，單位 分 * @param int $total_amount * @return $this */ public function setTotalAmount($total_amount) { $this->total_amount = (int)$total_amount; return $this; } /** * 建立紅包 * @param $openid string * @param $amount int 紅包金額，單位分 * @return $this */ public function createHongbao($openid, $amount) { if (! $openid) { throw new \InvalidArgumentException('openid error'); } if ($amount <= 0) { throw new \InvalidArgumentException('amount error'); } $this->generate_nonce_str(); $this->generate_mch_billno(); $this->setReOpenid($openid); $this->setTotalAmount($amount); return $this; } /** * 傳送紅包 * @return bool */ public function send() { $this->generate_sign(); $data = $this->generate_xml_params(); $data_obj = $this->https_request($this->api_hb_single, $data); if ($data_obj->return_code === 'SUCCESS' && $data_obj->result_code === 'SUCCESS') { $log = json_encode((array)$data_obj); error_log(sprintf("[%s]\twx hongbao send success.\tmch_billno:%s\tret:%s", date("Y-m-d H:i:s"), $this->mch_billno, $log)); return true; } $log = json_encode((array)$data_obj); error_log(sprintf("[%s]\twx hongbao send failed.\tmch_billno:%s\tret:%s", date("Y-m-d H:i:s"), $this->mch_billno, $log)); return false; } private function generate_xml_params() { $xml = "<xml> <sign><![CDATA[{$this->sign}]]></sign> <mch_billno><![CDATA[{$this->mch_billno}]]></mch_billno> <mch_id><![CDATA[{$this->mch_id}]]></mch_id> <wxappid><![CDATA[{$this->wxappid}]]></wxappid> <send_name><![CDATA[{$this->send_name}]]></send_name> <re_openid><![CDATA[{$this->re_openid}]]></re_openid> <total_amount><![CDATA[{$this->total_amount}]]></total_amount> <total_num><![CDATA[{$this->total_num}]]></total_num> <wishing><![CDATA[{$this->wishing}]]></wishing> <client_ip><![CDATA[{$this->client_ip}]]></client_ip> <act_name><![CDATA[{$this->act_name}]]></act_name> <remark><![CDATA[{$this->remark}]]></remark> <nonce_str><![CDATA[{$this->nonce_str}]]></nonce_str>"; if ($this->scene_id) { $xml .= "<scene_id><![CDATA[{$this->scene_id}]]></scene_id>"; } if ($this->risk_info) { $rsk = http_build_query($this->risk_info); $rsk = urlencode($rsk); $xml .= "<risk_info>{$rsk}</risk_info>"; } $xml .= "</xml>"; return $xml; } // 生成簽名 private function generate_sign() { $params = array( 'nonce_str' => $this->nonce_str, 'mch_billno'=> $this->mch_billno, 'mch_id' => $this->mch_id, 'wxappid' => $this->wxappid, 'send_name' => $this->send_name, 're_openid' => $this->re_openid, 'total_amount' => $this->total_amount, 'total_num' => $this->total_num, 'wishing' => $this->wishing, 'client_ip' => $this->client_ip, 'act_name' => $this->act_name, 'remark' => $this->remark ); if ($this->scene_id) { $params['scene_id'] = $this->scene_id; } if ($this->risk_info) { $rsk = http_build_query($this->risk_info); $params['risk_info'] = urlencode($rsk); } ksort($params); $params['key'] = $this->apikey; $s = http_build_query($params); $this->sign = strtoupper(md5($s)); } // 隨機字串 private function generate_nonce_str($length = 16) { $chars = 'abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789'; $chars_len = strlen($chars); $str = ''; for ($i = 0; $i < $length; $i++) { $str .= $chars[mt_rand(0, $chars_len - 1)]; } $this->nonce_str = $str; } // 訂單號 private function generate_mch_billno() { $s = substr($this->getReOpenid(), -4); $this->mch_billno = date('YmdHis') . $s; } private function https_request($url, $data = null) { $curl = curl_init(); curl_setopt($curl, CURLOPT_URL, $url); curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1); // curl_setopt($curl, CURLOPT_TIMEOUT, 1); curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE); curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE); curl_setopt($curl, CURLOPT_SSLCERT, $this->apiclient_cert); curl_setopt($curl, CURLOPT_SSLKEY, $this->apiclient_key); curl_setopt($curl, CURLOPT_CAINFO, $this->apiclient_ca); if (!empty($data)){ curl_setopt($curl, CURLOPT_POST, 1); curl_setopt($curl, CURLOPT_POSTFIELDS, $data); } $data = curl_exec($curl); curl_close($curl); return simplexml_load_string($data, 'SimpleXMLElement', LIBXML_NOCDATA); } }
程式碼中引入這個類，需要配置一下商戶id$mch_id，關聯的公眾號$wxappid，伺服器的公網ip$client_ip，還有$apikey，然後在建構函式中配置下證書，就能直接用了：
$hongbao = new wxHongbao();
$hongbao->createHongbao('xxxx', 100)->send();
Happy Coding~