TP5 wechat withdrawal merchants transfer to change (copying is available)

At the beginning, the docking enterprise pays change , After docking, we found a prompt that the product permission is not opened .
After consulting the information, it was found that the original enterprise payment to change was changed to merchant withdrawal to change , Therefore, the following code is provided .

Applicable to ： Direct connection merchants
request URL：https://api.mch.weixin.qq.com/v3/transfer/batches
Request mode ：POST
Interface frequency limiting ： Single merchant 50QPS, If the frequency limit is exceeded , Will report a mistake FREQUENCY_LIMITED, Please reduce the frequency of requests .
Do you need a certificate ： yes

	public function myTixian()
	{
    
		$this->tixian($info);
	}

	// Withdrawal 
    public function tixian($info = [])
    {
    
        if (empty($info)){
    
            return false;
        }
        $url = 'https://api.mch.weixin.qq.com/v3/transfer/batches';
        $batch_name = ' User withdrawal ';
        $pars = [];
        $pars['appid'] = 'wx1xxxxx';// Directly connected merchants appid
        $pars['out_batch_no'] = 'sjzz'.date('Ymd').mt_rand(1000, 9999);// Merchant batch number in merchant system , It is required that this parameter can only be represented by numbers 、 Upper and lower case letters make up , Unique within the merchant system 
        $pars['batch_name']   = $batch_name;// Name of the batch transfer 
        $pars['batch_remark'] = $batch_name;// Transfer instructions ,UTF8 code , Most allow 32 Characters 
        $pars['total_amount'] = intval(strval($info['amount'] * 100));// Total transfer amount   Unit is “ branch ”
        $pars['total_num']    = 1;// Total number of transfers 
        $pars['transfer_detail_list'][0]  = [
            'out_detail_no'=> $info['orderno'],
            'transfer_amount'=>intval(strval($info['amount'] * 100)),
            'transfer_remark'=>$batch_name,
            'openid'=>$info['openid'],
        ];// Transfer details list 
        $token  = $this->getToken($pars);// obtain token
        $res    = $this->https_request($url,json_encode($pars),$token);// Send a request 
        $resArr = json_decode($res,true);
        dump($resArr);die();
    }

	public function getToken($pars)
    {
    
        $url = 'https://api.mch.weixin.qq.com/v3/transfer/batches';
        $http_method = 'POST';// Request method （GET,POST,PUT）
        $timestamp   = time();// Request timestamp 
        $url_parts   = parse_url($url);// Gets the absolute value of the request URL
        $nonce       = $timestamp.rand('10000','99999');// Request random string 
        $body        = json_encode((object)$pars);// Request message body 
        $stream_opts = [
            "ssl" => [
                "verify_peer"=>false,
                "verify_peer_name"=>false,
            ]
        ];
		// certificate 
        $apiclient_cert_path = '/www/wwwroot/xxxx/xxxx/key/apiclient_cert.pem';
        $apiclient_key_path  = '/www/wwwroot/xxxx/xxxx/key/apiclient_key.pem';

        $apiclient_cert_arr = openssl_x509_parse(file_get_contents($apiclient_cert_path,false, stream_context_create($stream_opts)));
        $serial_no          = $apiclient_cert_arr['serialNumberHex'];// Certificate serial number 
        $mch_private_key    = file_get_contents($apiclient_key_path,false, stream_context_create($stream_opts));// secret key 

        $merchant_id = 'xxxxx';// Merchant id
        $canonical_url = ($url_parts['path'] . (!empty($url_parts['query']) ? "?${url_parts['query']}" : ""));

        $message = $http_method."\n".
            $canonical_url."\n".
            $timestamp."\n".
            $nonce."\n".
            $body."\n";
        openssl_sign($message, $raw_sign, $mch_private_key, 'sha256WithRSAEncryption');
        $sign = base64_encode($raw_sign);// Signature 
        $schema = 'WECHATPAY2-SHA256-RSA2048';
        $token = sprintf('mchid="%s",nonce_str="%s",timestamp="%d",serial_no="%s",signature="%s"',
            $merchant_id, $nonce, $timestamp, $serial_no, $sign);// Wechat returns token
        return $token;
    }


	function https_request($url,$data = null,$token){
    
        $curl = curl_init();
        curl_setopt($curl, CURLOPT_URL, (string)$url);
        curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, FALSE);
        curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, FALSE);
        if (!empty($data)){
    
            curl_setopt($curl, CURLOPT_POST, 1);
            curl_setopt($curl, CURLOPT_POSTFIELDS, $data);
        }
        curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);
        // Add request header 
        $headers = [
            'Authorization:WECHATPAY2-SHA256-RSA2048 '.$token,
            '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',
        ];
        if(!empty($headers)){
    
            curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);
        }
        $output = curl_exec($curl);
        curl_close($curl);
        return $output;
    }