286 lines
6.7 KiB
PHP
286 lines
6.7 KiB
PHP
<?php
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//namespace Vendor\Wxpay;
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class UnifiedOrder
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{
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/**
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* 作用：设置请求参数
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*/
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function setParameter($parameter, $parameterValue)
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{
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$this->parameters[$this->trimString($parameter)] = $this->trimString($parameterValue);
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}
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/**
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* 作用：设置标配的请求参数，生成签名，生成接口参数xml
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*/
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function createXml()
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{
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$this->parameters["appid"] = APPID;//公众账号ID
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$this->parameters["mch_id"] = MCHID;//商户号
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$this->parameters["nonce_str"] = $this->createNoncestr();//随机字符串
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$this->parameters["sign"] = $this->getSign($this->parameters);//签名
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return $this->arrayToXml($this->parameters);
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}
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/**
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* 作用：post请求xml
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*/
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function postXml()
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{
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$xml = $this->createXml();
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$this->response = $this->postXmlCurl($xml,$this->url,$this->curl_timeout);
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return $this->response;
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}
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/**
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* 作用：使用证书post请求xml
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*/
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function postXmlSSL()
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{
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$xml = $this->createXml();
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$this->response = $this->postXmlSSLCurl($xml,$this->url,$this->curl_timeout);
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return $this->response;
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}
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/**
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* 作用：获取结果，默认不使用证书
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*/
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function getResult()
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{
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$this->postXml();
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$this->result = $this->xmlToArray($this->response);
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return $this->result;
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}
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function trimString($value)
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{
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$ret = null;
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if (null != $value)
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{
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$ret = $value;
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if (strlen($ret) == 0)
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{
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$ret = null;
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}
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}
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return $ret;
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}
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/**
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* 作用：产生随机字符串，不长于32位
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*/
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public function createNoncestr( $length = 32 )
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{
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$chars = "abcdefghijklmnopqrstuvwxyz0123456789";
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$str ="";
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for ( $i = 0; $i < $length; $i++ ) {
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$str.= substr($chars, mt_rand(0, strlen($chars)-1), 1);
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}
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return $str;
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}
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/**
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* 作用：格式化参数，签名过程需要使用
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*/
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function formatBizQueryParaMap($paraMap, $urlencode)
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{
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$buff = "";
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ksort($paraMap);
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foreach ($paraMap as $k => $v)
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{
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if($urlencode)
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{
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$v = urlencode($v);
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}
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//$buff .= strtolower($k) . "=" . $v . "&";
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$buff .= $k . "=" . $v . "&";
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}
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$reqPar;
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if (strlen($buff) > 0)
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{
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$reqPar = substr($buff, 0, strlen($buff)-1);
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}
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return $reqPar;
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}
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/**
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* 作用：生成签名
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*/
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public function getSign($Obj)
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{
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foreach ($Obj as $k => $v)
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{
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$Parameters[$k] = $v;
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}
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//签名步骤一：按字典序排序参数
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ksort($Parameters);
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$String = $this->formatBizQueryParaMap($Parameters, false);
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//echo '【string1】'.$String.'</br>';
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//签名步骤二：在string后加入KEY
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$String = $String."&key=".KEY;
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//echo "【string2】".$String."</br>";
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//签名步骤三：MD5加密
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$String = md5($String);
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//echo "【string3】 ".$String."</br>";
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//签名步骤四：所有字符转为大写
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$result_ = strtoupper($String);
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//echo "【result】 ".$result_."</br>";
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return $result_;
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}
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/**
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* 作用：array转xml
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*/
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function arrayToXml($arr)
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{
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$xml = "<xml>";
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foreach ($arr as $key=>$val)
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{
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if (is_numeric($val))
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{
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$xml.="<".$key.">".$val."</".$key.">";
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}
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else
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$xml.="<".$key."><![CDATA[".$val."]]></".$key.">";
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}
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$xml.="</xml>";
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return $xml;
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}
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/**
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* 作用：将xml转为array
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*/
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public function xmlToArray($xml)
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{
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//将XML转为array
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$array_data = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);
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return $array_data;
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}
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/**
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* 作用：以post方式提交xml到对应的接口url
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*/
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public function postXmlCurl($xml,$url,$second=30)
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{
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//初始化curl
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$ch = curl_init();
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//设置超时
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curl_setopt($ch, CURLOP_TIMEOUT, $second);
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//这里设置代理，如果有的话
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//curl_setopt($ch,CURLOPT_PROXY, '8.8.8.8');
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//curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
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curl_setopt($ch,CURLOPT_URL, $url);
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curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);
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curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,FALSE);
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//设置header
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curl_setopt($ch, CURLOPT_HEADER, FALSE);
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//要求结果为字符串且输出到屏幕上
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
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//post提交方式
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curl_setopt($ch, CURLOPT_POST, TRUE);
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curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
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//运行curl
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$data = curl_exec($ch);
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curl_close($ch);
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//返回结果
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if($data)
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{
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curl_close($ch);
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return $data;
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}
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else
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{
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$error = curl_errno($ch);
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echo "curl出错，错误码:$error"."<br>";
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echo "<a href='http://curl.haxx.se/libcurl/c/libcurl-errors.html'>错误原因查询</a></br>";
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curl_close($ch);
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return false;
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}
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}
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/**
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* 作用：使用证书，以post方式提交xml到对应的接口url
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*/
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function postXmlSSLCurl($xml,$url,$second=30)
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{
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$ch = curl_init();
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//超时时间
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curl_setopt($ch,CURLOPT_TIMEOUT,$second);
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//这里设置代理，如果有的话
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//curl_setopt($ch,CURLOPT_PROXY, '8.8.8.8');
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//curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
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curl_setopt($ch,CURLOPT_URL, $url);
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curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);
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curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,FALSE);
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//设置header
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curl_setopt($ch,CURLOPT_HEADER,FALSE);
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//要求结果为字符串且输出到屏幕上
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curl_setopt($ch,CURLOPT_RETURNTRANSFER,TRUE);
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//设置证书
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//使用证书：cert 与 key 分别属于两个.pem文件
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//默认格式为PEM，可以注释
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curl_setopt($ch,CURLOPT_SSLCERTTYPE,'PEM');
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curl_setopt($ch,CURLOPT_SSLCERT, SSLCERT_PATH);
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//默认格式为PEM，可以注释
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curl_setopt($ch,CURLOPT_SSLKEYTYPE,'PEM');
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curl_setopt($ch,CURLOPT_SSLKEY, SSLKEY_PATH);
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//post提交方式
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curl_setopt($ch,CURLOPT_POST, true);
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curl_setopt($ch,CURLOPT_POSTFIELDS,$xml);
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$data = curl_exec($ch);
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//返回结果
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if($data){
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curl_close($ch);
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return $data;
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}
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else {
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$error = curl_errno($ch);
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echo "curl出错，错误码:$error"."<br>";
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echo "<a href='http://curl.haxx.se/libcurl/c/libcurl-errors.html'>错误原因查询</a></br>";
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curl_close($ch);
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return false;
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}
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}
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/**
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* 作用：打印数组
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*/
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function printErr($wording='',$err='')
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{
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print_r('<pre>');
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echo $wording."</br>";
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var_dump($err);
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print_r('</pre>');
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}
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function __construct()
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{
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//设置接口链接
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$this->url = "https://api.mch.weixin.qq.com/pay/unifiedorder";
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//设置curl超时时间
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$this->curl_timeout = CURL_TIMEOUT;
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}
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/**
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* 获取prepay_id
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*/
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function getPrepayId()
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{
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$this->postXml();
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$this->result = $this->xmlToArray($this->response);
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//dump($this->result);
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$prepay_id = $this->result["prepay_id"];
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return $prepay_id;
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}
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}
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?>
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