PHP實現微信提現（企業付款到零錢）

怎麼開通企業付款到零錢？

有的商戶號的產品中心是沒有這個功能的，不過，該功能的pid（product id）是5，只要隨便進去某一個產品，在地址欄把pid改為5。

即可進入該功能頁面，進行開通，不過要滿足條件。

用戶提現代碼：

 1 //用戶微信提現
 2 private function withdrawals_weixin($id){
 3 $falg = M('withdrawals')->where(['id'=>$id])->find();
 4 $openid = M('users')->where('user_id', $falg['user_id'])->value('openid');
 5 $data['openid'] = $openid;
 6 $data['pay_code'] = $falg['id'].$falg['user_id'];
 7 $data['desc'] = '提現ID'.$falg['id'];
 8 if($falg['taxfee'] >= $falg['money']){
 9 return array('status'=>1, 'msg'=>"提現額度必須大於手續費！" );
10 }else{
11 $data['money'] = bcsub($falg['money'], $falg['taxfee'], 2);
12 }
13 include_once PLUGIN_PATH . "payment/weixin/weixin.class.php";
14 $weixin_obj = new \weixin();
15 $result = $weixin_obj->transfer($data);
16 
17 return $result;
18 }

其中pay_code在商戶號的提現功能是唯一的，所以為了防重放攻擊，這個值千萬不能用隨機數，最好用ID，具有提現記錄唯一。

提現邏輯代碼：

 1 // 微信提現轉賬
 2 function transfer($data){
 3 
 4 header("Content-type: text/html; charset=utf-8");
 5 //CA證書及支付信息
 6 $wxchat['appid'] = WxPayConfig::$appid;
 7 $wxchat['mchid'] = WxPayConfig::$mchid;
 8 
 9 $wxchat['api_cert'] = PLUGIN_PATH.'/payment/weixin/cert/apiclient_cert.pem';
10 $wxchat['api_key'] = PLUGIN_PATH.'/payment/weixin/cert/apiclient_key.pem';
11 
12 // $wxchat['api_ca'] = '/plugins/payment/weixin/cert/rootca.pem';
13 $webdata = array(
14 'mch_appid' => $wxchat['appid'],
15 'mchid' => $wxchat['mchid'],
16 'nonce_str' => md5(time()),
17 //'device_info' => '1000',
18 'partner_trade_no'=> $data['pay_code'], //商戶訂單號，需要唯一
19 'openid' => $data['openid'],//轉賬用戶的openid
20 'check_name'=> 'NO_CHECK', //OPTION_CHECK不強制校驗真實姓名, FORCE_CHECK：強制 NO_CHECK：
21 //'re_user_name' => 'jorsh', //收款人用戶姓名
22 'amount' => $data['money'] * 100, //付款金額單位為分
23 'desc' => $data['desc'],
24 'spbill_create_ip' => request()->ip(),
25 );
26 
27 foreach ($webdata as $k => $v) {
28 $tarr[] =$k.'='.$v;
29 }
30 
31 sort($tarr);
32 $sign = implode($tarr, '&');
33 $sign .= '&key='.WxPayConfig::$key;
34 $webdata['sign']=strtoupper(md5($sign));
35 
36 $wget = $this->array2xml($webdata);
37 
38 $pay_url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers';
39 
40 $res = $this->http_post($pay_url, $wget, $wxchat);
41 
42 if(!$res){
43 return array('status'=>1, 'msg'=>"Can't connect the server" );
44 }
45 $content = simplexml_load_string($res, 'SimpleXMLElement', LIBXML_NOCDATA);
46 
47 if(strval($content->return_code) == 'FAIL'){
48 return array('status'=>1, 'msg'=>strval($content->return_msg));
49 }
50 if(strval($content->result_code) == 'FAIL'){
51 return array('status'=>1, 'msg'=>strval($content->err_code),':'.strval($content->err_code_des));
52 }
53 
54 $rdata = array(
55 'mch_appid' => strval($content->mch_appid),
56 'mchid' => strval($content->mchid),
57 'device_info' => strval($content->device_info),
58 'nonce_str' => strval($content->nonce_str),
59 'result_code' => strval($content->result_code),
60 'partner_trade_no' => strval($content->partner_trade_no),
61 'payment_no' => strval($content->payment_no),
62 'payment_time' => strval($content->payment_time),
63 );
64 return $rdata;
65 
66 }

其中 PLUGIN_PATH 是一個常量

 1 define('PLUGIN_PATH', __DIR__ . '/plugins/');
 2  定義插件目錄
 3 
 4 
 5 /**
 6 * 將一個數組轉換為 XML 結構的字元串
 7 * @param array $arr 要轉換的數組
 8 * @param int $level 節點層級, 1 為 Root.
 9 * @return string XML 結構的字元串
10 */
11 function array2xml($arr, $level = 1) {
12 $s = $level == 1 ? "<xml>" : '';
13 foreach($arr as $tagname => $value) {
14 if (is_numeric($tagname)) {
15 $tagname = $value['TagName'];
16 unset($value['TagName']);
17 }
18 if(!is_array($value)) {
19 $s .= "<{$tagname}>".(!is_numeric($value) ? '<![CDATA[' : '').$value.(!is_numeric($value) ? ']]>' : '')."</{$tagname}>";
20 } else {
21 $s .= "<{$tagname}>" . $this->array2xml($value, $level + 1)."</{$tagname}>";
22 }
23 }
24 $s = preg_replace("/([\x01-\x08\x0b-\x0c\x0e-\x1f])+/", ' ', $s);
25 return $level == 1 ? $s."</xml>" : $s;
26 }
27 
28 function http_post($url, $param, $wxchat) {
29 $oCurl = curl_init();
30 if (stripos($url, "https://") !== FALSE) {
31 curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);
32 curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);
33 }
34 if (is_string($param)) {
35 $strPOST = $param;
36 } else {
37 $aPOST = array();
38 foreach ($param as $key => $val) {
39 $aPOST[] = $key . "=" . urlencode($val);
40 }
41 $strPOST = join("&", $aPOST);
42 }
43 curl_setopt($oCurl, CURLOPT_URL, $url);
44 curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1);
45 curl_setopt($oCurl, CURLOPT_POST, true);
46 curl_setopt($oCurl, CURLOPT_POSTFIELDS, $strPOST);
47 if($wxchat){
48 curl_setopt($oCurl,CURLOPT_SSLCERT,$wxchat['api_cert']);
49 curl_setopt($oCurl,CURLOPT_SSLKEY,$wxchat['api_key']);
50 curl_setopt($oCurl,CURLOPT_CAINFO,$wxchat['api_ca']);
51 }
52 $sContent = curl_exec($oCurl);
53 $aStatus = curl_getinfo($oCurl);
54 curl_close($oCurl);
55 
56 if (intval($aStatus["http_code"]) == 200) {
57 return $sContent;
58 } else {
59 return false;
60 }
61 }