小程序支付 PHP
小程序支付完整demo 拿去直接可以用 須準備好小程序appid 和商戶mch_id 回調地址你們隨意,想用的話就用不想用填個業務域名就行了
/****小程序支付/
public function wxpay() {// $param = input('param.');// if(!$param['user_id']){// return json_encode(array('error_code'=>10001,'msg'=>'請求失敗'));// }$config = C('wxxcx');$data['appid'] = $config['appid'];$data['body'] = '商品支付';$data['mch_id'] = $config['mch_id'];$data['nonce_str'] = $this->createNoncestr();$data['notify_url'] = 'www.donglongshangcheng.com';$data['out_trade_no'] = rand(100000,999999);$data['openid'] = 'o-0S-4ldkCKhdwqcspBejBwd8-Uo';$data['spbill_create_ip'] = $_SERVER['SERVER_ADDR'];$data['total_fee'] = 1;$data['trade_type'] = 'JSAPI';$data['sign'] = $this->getSign($data);$xml = $this->arrayToXml($data);$url = 'https://api.mch.weixin.qq.com/pay/unifiedorder';$response = $this->postXmlCurl($xml,$url);$response = $this->xmlToArray($response);if($response['return_code'] == 'FAIL' || $response['result_code'] == 'FAIL'){return json_encode(array('error_code'=>10001,'msg'=>'支付失敗'));}//調起支付數據簽名字段$timeStamp = time();$nonce_pay = $this->createNoncestr();$package = $response['prepay_id'];$signType = "MD5";$stringPay = "appId=".$config['appid']."&nonceStr=".$nonce_pay."&package=prepay_id=".$package."&signType=".$signType."&timeStamp=".$timeStamp."&key=".$config['mch_secrect'];$paySign = strtoupper(md5($stringPay));$rpay['timeStamp'] = (string)$timeStamp;$rpay['nonceStr'] = $nonce_pay;$rpay['package'] = "prepay_id=".$package;$rpay['signType'] = $signType;$rpay['paySign'] = $paySign;return json_encode(array('error_code'=>10000,'msg'=>'請求成功','data'=>$rpay)); }/** 生成隨機字符串方法*/ protected function createNoncestr($length = 32 ){$chars = "abcdefghijklmnopqrstuvwxyz0123456789";$str ="";for ( $i = 0; $i < $length; $i++ ) {$str.= substr($chars, mt_rand(0, strlen($chars)-1), 1);}return $str; }/**排序并格式化參數方法，簽名時需要使用*/ protected function formatBizQueryParaMap($paraMap, $urlencode) {$buff = "";ksort($paraMap);foreach ($paraMap as $k => $v){if($urlencode){$v = urlencode($v);}//$buff .= strtolower($k) . "=" . $v . "&";$buff .= $k . "=" . $v . "&";}$reqPar = "";if (strlen($buff) > 0){$reqPar = substr($buff, 0, strlen($buff)-1);}return $reqPar; }/* * 對要發送到微信統一下單接口的數據進行簽名 */ protected function getSign($Obj){foreach ($Obj as $k => $v){$param[$k] = $v;}//簽名步驟一：按字典序排序參數ksort($param);$String = $this->formatBizQueryParaMap($param, false);//簽名步驟二：在string后加入KEY$String = $String."&key=".C('wxxcx.mch_secrect');//簽名步驟三：MD5加密$String = md5($String);//簽名步驟四：所有字符轉為大寫$result_ = strtoupper($String);return $result_; }//發送xml請求方法 private static function postXmlCurl($xml, $url, $second = 30) {$ch = curl_init();//設置超時curl_setopt($ch, CURLOPT_TIMEOUT, $second);curl_setopt($ch, CURLOPT_URL, $url);curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, FALSE);curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, FALSE); //嚴格校驗//設置headercurl_setopt($ch, CURLOPT_HEADER, FALSE);//要求結果為字符串且輸出到屏幕上curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);//post提交方式curl_setopt($ch, CURLOPT_POST, TRUE);curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 20);curl_setopt($ch, CURLOPT_TIMEOUT, 40);set_time_limit(0);//運行curl$data = curl_exec($ch);//返回結果if ($data) {curl_close($ch);return $data;} else {$error = curl_errno($ch);curl_close($ch);throw new WxPayException("curl出錯，錯誤碼:$error");} }//數組轉字符串方法 protected function arrayToXml($arr){$xml = "<xml>";foreach ($arr as $key=>$val){if (is_numeric($val)){$xml.="<".$key.">".$val."</".$key.">";}else{$xml.="<".$key."><![CDATA[".$val."]]></".$key.">";}}$xml.="</xml>";return $xml;}//將xml字符串轉換為數組protected static function xmlToArray($xml){$array_data = json_decode(json_encode(simplexml_load_string($xml, 'SimpleXMLElement', LIBXML_NOCDATA)), true);return $array_data;}總結
