公衆番号の微信支払いはどのように実現しますか?

1.基本構成:

//    appid
 $data["mch_appid"] = 'appid';
//    
 $data["mchid"] = '';
//      
 $data["nonce_str"] = 'suiji'.mt_rand(100,999); 
//      
 $data["partner_trade_no"]=date('YmdHis').mt_rand(1000,9999); 
//                100  
 $data["amount"] = $money; 
//      
 $data["desc"] = '         '; 
//  openid   
 $data["openid"] = $openid; 
//         
 $data["check_name"] = 'NO_CHECK'; 
//  IP  
 $data['spbill_create_ip']=$_SERVER['SERVER_ADDR']; 
//     
 $data['key']='';
//          API      
 $data['apiclient_cert.pem']
 $data['apiclient_key.pem']

 public function userpay(){
 $money = ‘        ';
 $info['money'] = ‘    ';
 if ($this->openid && $money){
  if ($money>$info['money'] ){
  echo json_encode([
   'status' => 1,
   'message' => '    ，    ！',
   'code'=>'    ，    ！'
  ]);
  }elseif ($money<1){
  echo json_encode([
   'status' => 2,
   'message' => '        1 ',
   'code'=>'      '
  ]);
  }else{
 $openid = $this->openid;
 $trade_no = date('YmdHis').mt_rand(1000,9999);
 $res = $this->pay($openid,$trade_no,$money*100,'    ');

 //    
 if($res['result_code']=="SUCCESS"){

   echo json_encode([
   'status' => 3,
   'message' => '    ！',
   ]);
  }elseif ($res['err_code']=="SENDNUM_LIMIT"){
   echo json_encode([
   'status' => 4,
   'message' => '    ！',
   'code'=>'        ',
   ]);
  }else{
   echo json_encode([
   'status' => 5,
   'message' => '    ！',
   'code'=>$res['err_code'],
   ]);
  }
  }
 }else{
  echo json_encode([
  'status' => 5,
  'message' => '           ~',

  ]);
 }
 }


public function pay($openid,$trade_no,$money,$desc){
 $params["mch_appid"]=''; 
 $params["mchid"] = ''; 
 $params["nonce_str"]= 'suiji'.mt_rand(100,999); 
 $params["partner_trade_no"] = $trade_no;  
 $params["amount"]= $money;  
 $params["desc"]= $desc;  
 $params["openid"]= $openid;  
 $params["check_name"]= 'NO_CHECK'; 
 $params['spbill_create_ip'] = $_SERVER['SERVER_ADDR']; 

 $str = 'amount='.$params["amount"].'&check_name='.$params["check_name"].'&desc='.$params["desc"].'&mch_appid='.$params["mch_appid"].'&mchid='.$params["mchid"].'&nonce_str='.$params["nonce_str"].'&openid='.$params["openid"].'&partner_trade_no='.$params["partner_trade_no"].'&spbill_create_ip='.$params['spbill_create_ip'].'&key=    ';

 $sign = strtoupper(md5($str));
 //    
 $params['sign'] = $sign;

 //  XML  
 $xmldata = $this->array_to_xml($params); //   XML
 $url='https://api.mch.weixin.qq.com/mmpaymkttransfers/prom otion/transfers';

 //  post  
 $res = $this->curl_post_ssl($url, $xmldata); //curl   
 if(!$res){
 return array('status'=>1, 
   'msg'=>"       " );
 }

 //      
 $content = $this->xml_to_array($res); //xml   
 return $content;
 }


public function curl_post_ssl($url, $xmldata,  $second=30,$aHeader=array()){
 $ch = curl_init();
 //    
 curl_setopt($ch,CURLOPT_TIMEOUT,$second);
 curl_setopt($ch,CURLOPT_RETURNTRANSFER, 1);
 //      ，     
 //curl_setopt($ch,CURLOPT_PROXY, '10.206.30.98');
 //curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
 curl_setopt($ch,CURLOPT_URL,$url);
 curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,false);
 curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,false);

 //     PEM，    
 curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
//        dirname(__DIR__)  ，           58   
 curl_setopt($ch,CURLOPT_SSLCERT,'     /apiclient_cert.pem');
 curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
 curl_setopt($ch,CURLOPT_SSLKEY,'    /apiclient_key.pem');
 if( count($aHeader) >= 1 ){
  curl_setopt($ch, CURLOPT_HTTPHEADER, $aHeader);
 }
 curl_setopt($ch,CURLOPT_POST, 1);
 curl_setopt($ch,CURLOPT_POSTFIELDS,$xmldata);
 $data = curl_exec($ch);
 if($data){
 curl_close($ch);
 return $data;
 }
 else {
 $error = curl_errno($ch);
 echo "call faild, errorCode:$error
";
 die();
 curl_close($ch);
 return false;
 }
 }

/**
 * array   xml
 *       
*/
public function array_to_xml($arr){
 $xml = "";
 foreach ($arr as $key => $val) {
 if (is_numeric($val)) {
 $xml .= "".$val."".$key.">";
 } else
 $xml .= "".$key.">";
 }
 $xml .= "";
 return $xml;
 }

/**
* xml    array
*/
public function xml_to_array($xml){
 //      xml  
 libxml_disable_entity_loader(true);
 $values = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
 return $values;
 }