PHP微信掃碼支付接入也不是很復雜，前期需要先配置與引入文件，這里首先先分兩步和大家講解一下
生成二維碼掃碼圖片，這里需要配置商戶ID，appid和秘鑰，再調用wxpay類，生成二維碼
header(Content-type:text/html;?Charset=utf-8);
$mchid?=?xxxxx;?????//微信支付商戶號?PartnerID?通過微信支付商戶資料審核后郵件發送
$appid?=?xxxxx;?//公眾號APPID?通過微信支付商戶資料審核后郵件發送
$apiKey?=?xxxxx;??//https://pay.weixin.qq.com?帳戶設置-安全設置-API安全-API密鑰-設置API密鑰
$wxPay?=?new?WxpayService($mchid,$appid,$apiKey);
$outTradeNo?=?uniqid();???//你自己的商品訂單號
$payAmount?=?0.01;?????//付款金額，單位:元
$orderName?=?支付測試;??//訂單標題
$notifyUrl?=?https://www.xxx.com/wx/;???//付款成功后的回調地址(不要有問號)
$payTime?=?time();???//付款時間
$arr?=?$wxPay->createJsBizPackage($payAmount,$outTradeNo,$orderName,$notifyUrl,$payTime);
//生成二維碼
$url?=?http://qr.liantu.com/api.php?text=.$arr[code_url];
echo?"<img?src={$url}?style=width:300px;>";
以下是wxpay類，和回調函數都整合在一起了，notify方法是回調地址調用的方法，比如：http://www.xxx.com/wx/notify.php，付款成功后，微信服務器會將付款結果通知到該頁面。
class?WxpayService
{
??protected?$mchid;
??protected?$appid;
??protected?$apiKey;
??public?function?__construct($mchid,?$appid,?$key)
??{
????$this->mchid?=?$mchid;
????$this->appid?=?$appid;
????$this->apiKey?=?$key;
??}
??/**
???*?發起訂單
???*?@param?float?$totalFee?收款總費用?單位元
???*?@param?string?$outTradeNo?唯一的訂單號
???*?@param?string?$orderName?訂單名稱
???*?@param?string?$notifyUrl?支付結果通知url?不要有問號
???*?@param?string?$timestamp?訂單發起時間
???*?@return?array
???*/
??public?function?createJsBizPackage($totalFee,?$outTradeNo,?$orderName,?$notifyUrl,?$timestamp)
??{
????$config?=?array(
??????mch_id?=>?$this->mchid,
??????appid?=>?$this->appid,
??????key?=>?$this->apiKey,
????);
????$orderName?=?iconv(GBK,UTF-8,$orderName);
????$unified?=?array(
??????appid?=>?$config[appid],
??????attach?=>?pay,???????//商家數據包，原樣返回，如果填寫中文，請注意轉換為utf-8
??????body?=>?$orderName,
??????mch_id?=>?$config[mch_id],
??????nonce_str?=>?self::createNonceStr(),
??????notify_url?=>?$notifyUrl,
??????out_trade_no?=>?$outTradeNo,
??????spbill_create_ip?=>?127.0.0.1,
??????total_fee?=>?intval($totalFee?*?100),????//單位?轉為分
??????trade_type?=>?NATIVE,
????);
????$unified[sign]?=?self::getSign($unified,?$config[key]);
????$responseXml?=?self::curlPost(https://api.mch.weixin.qq.com/pay/unifiedorder,?self::arrayToXml($unified));
????$unifiedOrder?=?simplexml_load_string($responseXml,?SimpleXMLElement,?LIBXML_NOCDATA);
????if?($unifiedOrder?===?false)?{
??????die(parse?xml?error);
????}
????if?($unifiedOrder->return_code?!=?SUCCESS)?{
??????die($unifiedOrder->return_msg);
????}
????if?($unifiedOrder->result_code?!=?SUCCESS)?{
??????die($unifiedOrder->err_code);
????}
????$codeUrl?=?(array)($unifiedOrder->code_url);
????if(!$codeUrl[0])?exit(get?code_url?error);
????$arr?=?array(
??????"appId"?=>?$config[appid],
??????"timeStamp"?=>?$timestamp,
??????"nonceStr"?=>?self::createNonceStr(),
??????"package"?=>?"prepay_id="?.?$unifiedOrder->prepay_id,
??????"signType"?=>?MD5,
??????"code_url"?=>?$codeUrl[0],
????);
????$arr[paySign]?=?self::getSign($arr,?$config[key]);
????return?$arr;
??}
??public?function?notify()
??{
????$config?=?array(
??????mch_id?=>?$this->mchid,
??????appid?=>?$this->appid,
??????key?=>?$this->apiKey,
????);
????$postStr?=?$GLOBALS["HTTP_RAW_POST_DATA"];
????$postObj?=?simplexml_load_string($postStr,?SimpleXMLElement,?LIBXML_NOCDATA);
????if?($postObj?===?false)?{
??????die(parse?xml?error);
????}
????if?($postObj->return_code?!=?SUCCESS)?{
??????die($postObj->return_msg);
????}
????if?($postObj->result_code?!=?SUCCESS)?{
??????die($postObj->err_code);
????}
????$arr?=?(array)$postObj;
????unset($arr[sign]);
????if?(self::getSign($arr,?$config[key])?==?$postObj->sign)?{
??????echo?<xml><return_code><![CDATA[SUCCESS]]></return_code><return_msg><![CDATA[OK]]></return_msg></xml>;
??????return?$postObj;
????}
??}
??/**
???*?curl?get
???*
???*?@param?string?$url
???*?@param?array?$options
???*?@return?mixed
???*/
??public?static?function?curlGet($url?=?,?$options?=?array())
??{
????$ch?=?curl_init($url);
????curl_setopt($ch,?CURLOPT_RETURNTRANSFER,?1);
????curl_setopt($ch,?CURLOPT_TIMEOUT,?30);
????if?(!empty($options))?{
??????curl_setopt_array($ch,?$options);
????}
????//https請求?不驗證證書和host
????curl_setopt($ch,?CURLOPT_SSL_VERIFYPEER,?false);
????curl_setopt($ch,?CURLOPT_SSL_VERIFYHOST,?false);
????$data?=?curl_exec($ch);
????curl_close($ch);
????return?$data;
??}
??public?static?function?curlPost($url?=?,?$postData?=?,?$options?=?array())
??{
????if?(is_array($postData))?{
??????$postData?=?http_build_query($postData);
????}
????$ch?=?curl_init();
????curl_setopt($ch,?CURLOPT_URL,?$url);
????curl_setopt($ch,?CURLOPT_RETURNTRANSFER,?1);
????curl_setopt($ch,?CURLOPT_POST,?1);
????curl_setopt($ch,?CURLOPT_POSTFIELDS,?$postData);
????curl_setopt($ch,?CURLOPT_TIMEOUT,?30);?//設置cURL允許執行的最長秒數
????if?(!empty($options))?{
??????curl_setopt_array($ch,?$options);
????}
????//https請求?不驗證證書和host
????curl_setopt($ch,?CURLOPT_SSL_VERIFYPEER,?false);
????curl_setopt($ch,?CURLOPT_SSL_VERIFYHOST,?false);
????$data?=?curl_exec($ch);
????curl_close($ch);
????return?$data;
??}
??public?static?function?createNonceStr($length?=?16)
??{
????$chars?=?abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789;
????$str?=?;
????for?($i?=?0;?$i?<?$length;?$i++)?{
??????$str?.=?substr($chars,?mt_rand(0,?strlen($chars)?-?1),?1);
????}
????return?$str;
??}
??public?static?function?arrayToXml($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?$xml;
??}
??/**
???*?獲取簽名
???*/
??public?static?function?getSign($params,?$key)
??{
????ksort($params,?SORT_STRING);
????$unSignParaString?=?self::formatQueryParaMap($params,?false);
????$signStr?=?strtoupper(md5($unSignParaString?.?"&key="?.?$key));
????return?$signStr;
??}
??protected?static?function?formatQueryParaMap($paraMap,?$urlEncode?=?false)
??{
????$buff?=?"";
????ksort($paraMap);
????foreach?($paraMap?as?$k?=>?$v)?{
??????if?(null?!=?$v?&&?"null"?!=?$v)?{
????????if?($urlEncode)?{
??????????$v?=?urlencode($v);
????????}
????????$buff?.=?$k?.?"="?.?$v?.?"&";
??????}
????}
????$reqPar?=?;
????if?(strlen($buff)?>?0)?{
??????$reqPar?=?substr($buff,?0,?strlen($buff)?-?1);
????}
????return?$reqPar;
??}
}
學習? |? 交流? |? 分享? | ?文章?