php微信支付之APP支付方法.docx

1、php微信支付之APP支付方法WechatAppPay文件代码如下：复制代码代码如下:file = _DIR_ . /payAccessToken.txt; /* * 创建APP支付最终返回参数 * throws Exception * return multitype:string NULL */ public function createAppPayData() $this-generateConfig(); $prepayid = $this-getPrepayid(); try $array = appid = $this-appid, appkey = $this-paySignk

2、ey, noncestr = $this-getRandomStr(), package = Sign=WXPay, partnerid = $this-partnerId, prepayid = $prepayid, timestamp = (string)time(), ; $arraysign = $this-sha1Sign($array); unset($arrayappkey); catch(Exception $e) throw new Exception($e-getMessage(); return $array; /* * 验证支付成功后的通知参数 * * throws E

3、xception * return boolean */ public function verifyNotify() try $staySignStr = $this-notify; unset($staySignStrsign); $sign = $this-signData($staySignStr); return $this-notifysign = $sign; catch(Exception $e) throw new Exception($e-getMessage(); /* * 魔术方法，给添加支付参数进来 * * param string $name 参数名 * param

4、 string $value 参数值 */ public function _set($name, $value) $this-$name = $value; /* * 设置access token * param string $token * throws Exception * return boolean */ public function setAccessToken() try if(!file_exists($this-file) | !is_file($this-file) $f = fopen($this-file, a); fclose($f); $content = f

5、ile_get_contents($this-file); if(!empty($content) $info = $content, true); if( time() - $infogetTime accessToken = $infoaccessToken; return true; /文件内容为空或access token已失效，重新获取 $this-outputAccessTokenToFile(); catch(Exception $e) throw new Exception($e-getMessage(); return true; /* * 写入access token 到文

6、件 * throws Exception * return boolean */ protected function outputAccessTokenToFile() try $f = fopen($this-file, wb); $token = accessToken = $this-getAccessToken(), getTime = time(), ; flock($f, LOCK_EX); fwrite($f, $token); flock($f, LOCK_UN); fclose($f); $this-accessToken = $tokenaccessToken; catc

7、h(Exception $e) throw new Exception($e-getMessage(); return true; /* * 取access token * * throws Exception * return string */ protected function getAccessToken() $url = sprintf(self:ACCESS_TOKEN_URL, $this-appid, $this-appSecret); $result = $this-getUrl($url), true ); if(isset($resulterrcode) throw n

8、ew Exception(get access token failed:$resulterrmsg); return $resultaccess_token; /* * 取预支付会话标识 * * throws Exception * return string */ protected function getPrepayid() $data = $this-config); $url = sprintf(self:POST_ORDER_URL, $this-accessToken); $result = $this-postUrl($url, $data), true ); if( iss

9、et($resulterrcode) & $resulterrcode != 0 ) throw new Exception($resulterrmsg); if( !isset($resultprepayid) ) throw new Exception(get prepayid failed, url request error.); return $resultprepayid; /* * 组装预支付参数 * * throws Exception */ protected function generateConfig() try $this-config = appid = $this

10、-appid, traceid = $this-traceid, noncestr = $this-getRandomStr(), timestamp = time(), package = $this-generatePackage(), sign_method = $this-sign_method, ; $this-configapp_signature = $this-generateSign(); catch(Exception $e) throw new Exception($e-getMessage(); /* * 生成package字段 * * 生成规则: * 1、生成sign

11、的值signValue * 2、对package参数再次拼接成查询字符串，值需要进行urlencode * 3、将sign=signValue拼接到2生成的字符串后面得到最终的package字符串 * * 第2步urlencode空格需要编码成%20而不是+ * * RFC 1738会把 空格编码成+ * RFC 3986会把空格编码成%20 * * return string */ protected function generatePackage() $this-packagesign = $this-signData($this-package); return http_build_

12、query($this-package, , &, PHP_QUERY_RFC3986); /* * 生成签名 * * return string */ protected function generateSign() $signArray = appid = $this-appid, appkey = $this-paySignkey, noncestr = $this-confignoncestr, package = $this-configpackage, timestamp = $this-configtimestamp, traceid = $this-traceid, ; re

13、turn $this-sha1Sign($signArray); /* * 签名数据 * * 生成规则: * 1、字典排序，拼接成查询字符串格式，不需要urlencode * 2、上一步得到的字符串最后拼接上key=paternerKey * 3、MD5哈希字符串并转换成大写得到sign的值signValue * * param array $data 待签名数据 * return string 最终签名结果 */ protected function signData($data) ksort($data); $str = $this-arrayToString($data); $str .= &key=$this-partnerKey; return strtoupper( $this-signMd5($str) ); /* * sha1签名 * 签名规则 * 1、字典排序 * 2、拼接查询字符串 * 3、sha1运算 * * param array $arr * return string */ protected function sha1Sign($arr) ksort($arr); return sha1( $this-arrayToString($arr) );