class WeixinPayToUser
{/*** 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*/public $parameters = [];public $SSLROOTCA_PATH='';public $SSLCERT_PATH='';public $SSLKEY_PATH='';public $appid='';public $secret='';public $mchid='';public $key='';//商户密钥public function __construct(){$this->url = 'https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers';$this->curl_timeout = 10;$this->SSLROOTCA_PATH=dirname(__FILE__).'/weixin/cert/rootca.pem';$this->SSLCERT_PATH=dirname(__FILE__).'/weixin/cert/apiclient_cert.pem';$this->SSLKEY_PATH=dirname(__FILE__).'/weixin/cert/apiclient_key.pem';}public function setParameter($key,$value){$this->parameters[$key]=$value;}function arrayToXml($arr,$dom=0,$item=0){if (!$dom){$dom = new DOMDocument("1.0");}if(!$item){$item = $dom->createElement("xml");$dom->appendChild($item);}foreach ($arr as $key=>$val){$itemx = $dom->createElement(is_string($key)?$key:"item");$item->appendChild($itemx);if (!is_array($val)){$text = $dom->createTextNode($val);$itemx->appendChild($text);}else {$this->arrayToXml($val,$dom,$itemx);}}$dom->encoding = 'UTF-8'; // insert properreturn $dom->saveXML();}public function getSign($paramArr){//print_r($paramArr);ksort($paramArr);$paramStr = http_build_query($paramArr);$paramStr=urldecode($paramStr);$param_temp=$paramStr.'&key='.$this->key;//echo $param_temp.'<br>';$signValue=strtoupper(md5($param_temp));//echo $signValue.'<br>';return $signValue;}/*** 生成请求xml数据* @return string*/public function createXml(){$this->parameters['mch_appid'] = $this->appid;$this->parameters['mchid']     = $this->mchid;// $this->parameters['nonce_str'] = md5(time());$this->parameters['nonce_str'] = 'dddfff';$this->parameters['sign']      = $this->getSign($this->parameters);$a= $this->arrayToXml($this->parameters);//echo $a;return $a;}public function pay(){$xml=$this->createXml();$url=$this->url;return $this->postXmlSSLCurl($xml,$url,$second=30);}/***     作用：使用证书，以post方式提交xml到对应的接口url*/function postXmlSSLCurl($xml,$url,$second=30){$ch = curl_init();//超时时间curl_setopt($ch,CURLOPT_TIMEOUT,$second);//这里设置代理，如果有的话//curl_setopt($ch,CURLOPT_PROXY, '8.8.8.8');//curl_setopt($ch,CURLOPT_PROXYPORT, 8080);curl_setopt($ch,CURLOPT_URL, $url);curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,FALSE);//设置headercurl_setopt($ch,CURLOPT_HEADER,FALSE);//要求结果为字符串且输出到屏幕上curl_setopt($ch,CURLOPT_RETURNTRANSFER,TRUE);//设置证书//curl_setopt($ch,CURLOPT_CAINFO, $this->SSLROOTCA_PATH);//使用证书：cert 与 key 分别属于两个.pem文件//默认格式为PEM，可以注释curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');curl_setopt($ch,CURLOPT_SSLCERT, $this->SSLCERT_PATH);//默认格式为PEM，可以注释curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');curl_setopt($ch,CURLOPT_SSLKEY, $this->SSLKEY_PATH);//post提交方式curl_setopt($ch,CURLOPT_POST, true);curl_setopt($ch,CURLOPT_POSTFIELDS,$xml);$data = curl_exec($ch);//返回结果if($data){curl_close($ch);return $data;}else {$error = curl_errno($ch);echo "curl出错，错误码:$error"."<br>";echo "<a href='http://curl.haxx.se/libcurl/c/libcurl-errors.html'>错误原因查询</a></br>";curl_close($ch);return false;}}}
?>

 /*** 企业付款测试*/public function payToUser(){

        $mchPay = new WeiXinPayToUser();// 用户openid$mchPay->setParameter('openid', 'oy2lbszskklaslEKThrzqEziKEBzqU');// 商户订单号$mchPay->setParameter('partner_trade_no', 'test-'.time());// 校验用户姓名选项$mchPay->setParameter('check_name', 'NO_CHECK');// 企业付款金额  单位为分$mchPay->setParameter('amount', 100);// 企业付款描述信息$mchPay->setParameter('desc', '开发测试');// 调用接口的机器IP地址  自定义$mchPay->setParameter('spbill_create_ip', '127.0.0.1'); # getClientIp()// 收款用户姓名// $mchPay->setParameter('re_user_name', 'Max wen');// 设备信息// $mchPay->setParameter('device_info', 'dev_server');$response = $mchPay->postXmlSSL();if( !empty($response) ) {$data = simplexml_load_string($response, null, LIBXML_NOCDATA);echo json_encode($data);}else{echo json_encode( array('return_code' => 'FAIL', 'return_msg' => 'transfers_接口出错', 'return_ext' => array()) );}}
}