PHP支付宝当面付2.0代码

//支付宝条码支付，直接调用ali_tiaoma_pay方法，把条码和金额传进去就okfunction ali_tiaoma_pay($tiaoma,$price){   $data['scene'] = 'bar_code'; //支付场景  $data['out_trade_no'] = date("Ymd").rand(10000,99999); //订单号  $data['total_amount'] = $price; //支付金额  $data['auth_code'] = $tiaoma;  //支付授权码  $data['subject'] = '订单标题'; //订单标题  $data['body'] = '订单说明'; //订单说明  $data = json_encode($data);  $params['app_id'] = $alipay_account;  $params['method'] = 'alipay.trade.pay';  $params['charset'] = 'utf-8';  $params['sign_type'] = 'RSA2';  $params['timestamp'] = date("Y-m-d H:i:s");  $params['version'] = '1.0';  $params['notify_url'] = "";   $params['biz_content'] = $data;  ksort($params); //对将要签名的数组排序   $string = $this->toUrlParam($params); //将数组转换成字符串  $params['sign'] = $this->alipay_sign($string); //将字符串签名  $url = 'https://openapi.alipay.com/gateway.do?' . http_build_query($params);  $return = file_get_contents($url); //打开支付请求连接 获取二维码地址  $return = json_decode($return, true); //将返回的字符串转换为数组  return $return;}  //app支付宝签名function alipay_sign($data, $signType = "RSA2")   $res = "-----BEGIN RSA PRIVATE KEY-----/n" .    wordwrap('你的商户私钥，必须和公匙匹配', 64, "/n", true) .    "/n-----END RSA PRIVATE KEY-----";  ($res) or die('您使用的私钥格式错误，请检查RSA私钥配置');  if ("RSA2" == $signType) {    openssl_sign($data, $sign, $res, "SHA256");  } else {    openssl_sign($data, $sign, $res);  }  $sign = base64_encode($sign);  return $sign;} /* * 格式化参数格式化成url参数*/function toUrlParam($param){  $buff = "";  foreach($param as $k => $v)  {    if($k != "sign" && $v != "" && !is_array($v)){      $buff .= $k."=".$v."&";    }  }   $buff = trim($buff, "&");  return $buff;}