企業付款的應用情境： 公眾號向已關注用戶付款，例如處理退款、財務結算等，本文主要和大家分享php開發微信支付企業付款實例代碼，希望能幫助大家。
1.憑證需要用自己的商家裡面的憑證（注意：憑證路徑必須是絕對路徑，如果使用相對路徑會回報下面的錯誤。
unable to use client certificate (no key found or wrong pass phrase?)
2.appid，secret以及key填寫自己的即可。想法：
1.首先取得openid,具體方法見下面。
#參數參考： 企業付款API的文件1.取得CODE（index.php頁面）/** * API 参数 * @var array * ‘mch_appid’ # 公众号APPID * ‘mchid’ # 商户号 * ‘device_info’ # 设备号 * ‘nonce_str’ # 随机字符串 * ‘partner_trade_no’ # 商户订单号 * ‘openid’ # 收款用户openid * ‘check_name’ # 校验用户姓名选项 针对实名认证的用户 * ‘re_user_name’ # 收款用户姓名 * ‘amount’ # 付款金额 * ‘desc’ # 企业付款描述信息 * ‘spbill_create_ip’ # Ip地址 * ‘sign’ # 签名 */
3.產生簽章函數檔（api.php）<?php //信息回调文件所在的服务器位置$str="http://www.xxx.com/company_pay/getInfo.php";$str_url=urlencode($str);$appid = "xxxx3e5273505e";$url = 'https://open.weixin.qq.com/connect/oauth2/authorize?appid='.$appid.'&redirect_uri='.$str_url.'&response_type=code&scope=snsapi_userinfo&state=STATE#wechat_redirect'; header("Location:".$url);?>登入後複製
<?php$appid = "wxxxxx3505e";//你的微信公众平台的appid$secret = "fxxxxx71xxx4cda2a671";//你微信公众平台的secret$code = $_GET["code"];$get_token_url = 'https://api.weixin.qq.com/sns/oauth2/access_token?appid='.$appid.'&secret='.$secret.'&code='.$code.'&grant_type=authorization_code';$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$get_token_url);
curl_setopt($ch,CURLOPT_HEADER,0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);$res = curl_exec($ch);
curl_close($ch);$json_obj = json_decode($res,true);//根据openid和access_token查询用户信息$access_token = $json_obj['access_token'];$openid = $json_obj['openid'];$get_user_info_url = 'https://api.weixin.qq.com/sns/userinfo?access_token='.$access_token.'&openid='.$openid.'&lang=zh_CN';$ch = curl_init();
curl_setopt($ch,CURLOPT_URL,$get_user_info_url);
curl_setopt($ch,CURLOPT_HEADER,0);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1 );
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 10);$res = curl_exec($ch);
curl_close($ch);//解析json$user_obj = json_decode($res,true);//var_dump($user_obj);echo "<br/>"."-----".$openid."*****";$mch_appid=$appid;$mchid='10000401';//商户号$nonce_str='vhmake'.rand(100000, 999999);//随机数$partner_trade_no='VH'.time().rand(10000, 99999);//商户订单号$openid=$openid;//用户唯一标识$check_name='NO_CHECK';//校验用户姓名选项，NO_CHECK：不校验真实姓名 FORCE_CHECK：强校验真实姓名（未实名认证的用户会校验失败，无法转账）OPTION_CHECK：针对已实名认证的用户才校验真实姓名（未实名认证用户不校验，可以转账成功）$re_user_name='[北京微函工坊科技有限公司](http://www.vhmake.com)';//用户姓名$amount=100;//金额（以分为单位，必须大于100）$desc='[北京微函工坊科技有限公司](http://www.vhmake.com)';//描述$spbill_create_ip=$_SERVER["REMOTE_ADDR"];//请求ip//封装成数据$dataArr=array();$dataArr['amount']=$amount;$dataArr['check_name']=$check_name;$dataArr['desc']=$desc;$dataArr['mch_appid']=$mch_appid;$dataArr['mchid']=$mchid;$dataArr['nonce_str']=$nonce_str;$dataArr['openid']=$openid;$dataArr['partner_trade_no']=$partner_trade_no;$dataArr['re_user_name']=$re_user_name;$dataArr['spbill_create_ip']=$spbill_create_ip;require 'api.php';$sign=getSign($dataArr);echo "-----<br/>签名：".$sign."<br/>*****";//die;$data="<xml>
<mch_appid>".$mch_appid."</mch_appid>
<mchid>".$mchid."</mchid>
<nonce_str>".$nonce_str."</nonce_str>
<partner_trade_no>".$partner_trade_no."</partner_trade_no>
<openid>".$openid."</openid>
<check_name>".$check_name."</check_name>
<re_user_name>".$re_user_name."</re_user_name>
<amount>".$amount."</amount>
<desc>".$desc."</desc>
<spbill_create_ip>".$spbill_create_ip."</spbill_create_ip>
<sign>".$sign."</sign>
</xml>";//var_dump($data);$ch = curl_init ();$MENU_URL="https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers";
curl_setopt ( $ch, CURLOPT_URL, $MENU_URL );
curl_setopt ( $ch, CURLOPT_CUSTOMREQUEST, "POST" );
curl_setopt ( $ch, CURLOPT_SSL_VERIFYPEER, FALSE );
curl_setopt ( $ch, CURLOPT_SSL_VERIFYHOST, FALSE );$zs1="/xxxx/xxx/xxxxxx/apiclient_cert.pem";//注意：填写的路径必须为绝对路径，不可以填写相对路径$zs2="/xxxx/xxx/xxxxx/apiclient_key.pem";
curl_setopt($ch,CURLOPT_SSLCERT,$zs1);
curl_setopt($ch,CURLOPT_SSLKEY,$zs2);// curl_setopt($ch, CURLOPT_USERAGENT, 'Mozilla/5.0 (compatible; MSIE 5.01;// Windows NT 5.0)');curl_setopt ( $ch, CURLOPT_FOLLOWLOCATION, 1 );
curl_setopt ( $ch, CURLOPT_AUTOREFERER, 1 );
curl_setopt ( $ch, CURLOPT_POSTFIELDS, $data );
curl_setopt ( $ch, CURLOPT_RETURNTRANSFER, true );$info = curl_exec ( $ch );$infos=simplexml_load_string($info);if (curl_errno ( $ch )) { echo 'Errno:::' . curl_error ( $ch );
}
curl_close ( $ch );echo "-----<br/>请求返回值：";echo $infos->return_code;echo "<br/>*****";?><?php/**
* 作用：格式化参数，签名过程需要使用
*/function formatBizQueryParaMap($paraMap, $urlencode){
$buff = "";
ksort($paraMap); foreach ($paraMap as $k => $v)
{ if($urlencode)
{ $v = urlencode($v);
} $buff .= $k . "=" . $v . "&";
} if (strlen($buff) > 0)
{ $reqPar = substr($buff, 0, strlen($buff)-1);
} return $reqPar;
}/**
* 作用：生成签名
*/function getSign($Obj){
foreach ($Obj as $k => $v)
{ $Parameters[$k] = $v;
} //签名步骤一：按字典序排序参数
ksort($Parameters); $String = formatBizQueryParaMap($Parameters, false); //echo '【string1】'.$String.'</br>';
//签名步骤二：在string后加入KEY
$String = $String."&key=vhmake666vhmake666vhmake666vhmak"; //echo "【string2】".$String."</br>";
//签名步骤三：MD5加密
$String = md5($String); //echo "【string3】 ".$String."</br>";
//签名步骤四：所有字符转为大写
$result_ = strtoupper($String); //echo "【result】 ".$result_."</br>";
return $result_;
}App微信支付之php後台介面詳解
關於微信支付介面研究分享
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