網上的很多PHP微信支付接入教程都頗為複雜，且需要配置和引入較多的檔案，本人通過整理後給出一個單檔案版的，希望可以給各位想接入微信支付的帶來些許幫助和借鑑意義。
直接執行該檔案即可給指定的微信使用者轉賬。
需要注意的事項：
-
1.微信企業付款到零錢要求必傳證照，需要到https://pay.weixin.qq.com 賬戶中心->賬戶設定->API安全->下載證照，然後修改程式碼中的證照路徑
-
2.該檔案需放到支付授權目錄下，可以在微信支付商戶平臺->產品中心->開發配置中設定。
-
3.如提示簽名錯誤可以通過微信支付簽名驗證工具進行驗證：https://pay.weixin.qq.com/wik…
-
4.錯誤碼參照 ：https://pay.weixin.qq.com/wik…
程式碼如下：
<?php
/**
* 關於微信企業付款的說明
* 1.微信企業付款要求必傳證照，需要到https://pay.weixin.qq.com 賬戶中心->賬戶設定->API安全->下載證照，證照路徑在第207行和210行修改
* 2.錯誤碼參照 ：https://pay.weixin.qq.com/wiki/doc/api/tools/mch_pay.php?chapter=14_2
*/
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稽核後郵件傳送
$appid = `xxxxx`; //微信支付申請對應的公眾號的APPID
$appKey = `xxxxx`; //微信支付申請對應的公眾號的APP Key
$apiKey = `xxxxx`; //https://pay.weixin.qq.com 帳戶設定-安全設定-API安全-API金鑰-設定API金鑰
//①、獲取當前訪問頁面的使用者openid（如果給指定使用者轉賬，則直接填寫指定使用者的openid)
$wxPay = new WxpayService($mchid,$appid,$appKey,$apiKey);
$openId = $wxPay->GetOpenid(); //獲取openid
if(!$openId) exit(`獲取openid失敗`);
//②、付款
$outTradeNo = uniqid(); //訂單號
$payAmount = 1; //轉賬金額，單位:元。轉賬最小金額為1元
$trueName = `張三`; //收款人真實姓名
$result = $wxPay->createJsBizPackage($openId,$payAmount,$outTradeNo,$trueName);
echo `success`;
class WxpayService
{
protected $mchid;
protected $appid;
protected $appKey;
protected $apiKey;
public $data = null;
public function __construct($mchid, $appid, $appKey,$key)
{
$this->mchid = $mchid;
$this->appid = $appid;
$this->appKey = $appKey;
$this->apiKey = $key;
}
/**
* 通過跳轉獲取使用者的openid，跳轉流程如下：
* 1、設定自己需要調回的url及其其他引數，跳轉到微信伺服器https://open.weixin.qq.com/connect/oauth2/authorize
* 2、微信服務處理完成之後會跳轉回使用者redirect_uri地址，此時會帶上一些引數，如：code
* @return 使用者的openid
*/
public function GetOpenid()
{
//通過code獲得openid
if (!isset($_GET[`code`])){
//觸發微信返回code碼
$scheme = $_SERVER[`HTTPS`]==`on` ? `https://` : `http://`;
$baseUrl = urlencode($scheme.$_SERVER[`HTTP_HOST`].$_SERVER[`PHP_SELF`].$_SERVER[`QUERY_STRING`]);
$url = $this->__CreateOauthUrlForCode($baseUrl);
Header("Location: $url");
exit();
} else {
//獲取code碼，以獲取openid
$code = $_GET[`code`];
$openid = $this->getOpenidFromMp($code);
return $openid;
}
}
/**
* 通過code從工作平臺獲取openid機器access_token
* @param string $code 微信跳轉回來帶上的code
* @return openid
*/
public function GetOpenidFromMp($code)
{
$url = $this->__CreateOauthUrlForOpenid($code);
$res = self::curlGet($url);
//取出openid
$data = json_decode($res,true);
$this->data = $data;
$openid = $data[`openid`];
return $openid;
}
/**
* 構造獲取open和access_toke的url地址
* @param string $code，微信跳轉帶回的code
* @return 請求的url
*/
private function __CreateOauthUrlForOpenid($code)
{
$urlObj["appid"] = $this->appid;
$urlObj["secret"] = $this->appKey;
$urlObj["code"] = $code;
$urlObj["grant_type"] = "authorization_code";
$bizString = $this->ToUrlParams($urlObj);
return "https://api.weixin.qq.com/sns/oauth2/access_token?".$bizString;
}
/**
* 構造獲取code的url連線
* @param string $redirectUrl 微信伺服器回跳的url，需要url編碼
* @return 返回構造好的url
*/
private function __CreateOauthUrlForCode($redirectUrl)
{
$urlObj["appid"] = $this->appid;
$urlObj["redirect_uri"] = "$redirectUrl";
$urlObj["response_type"] = "code";
$urlObj["scope"] = "snsapi_base";
$urlObj["state"] = "STATE"."#wechat_redirect";
$bizString = $this->ToUrlParams($urlObj);
return "https://open.weixin.qq.com/connect/oauth2/authorize?".$bizString;
}
/**
* 拼接簽名字串
* @param array $urlObj
* @return 返回已經拼接好的字串
*/
private function ToUrlParams($urlObj)
{
$buff = "";
foreach ($urlObj as $k => $v)
{
if($k != "sign") $buff .= $k . "=" . $v . "&";
}
$buff = trim($buff, "&");
return $buff;
}
/**
* 企業付款
* @param string $openid 呼叫【網頁授權獲取使用者資訊】介面獲取到使用者在該公眾號下的Openid
* @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 $timestamp 支付時間
* @return string
*/
public function createJsBizPackage($openid, $totalFee, $outTradeNo,$trueName)
{
$config = array(
`mch_id` => $this->mchid,
`appid` => $this->appid,
`key` => $this->apiKey,
);
$unified = array(
`mch_appid` => $config[`appid`],
`mchid` => $config[`mch_id`],
`nonce_str` => self::createNonceStr(),
`openid` => $openid,
`check_name`=>`FORCE_CHECK`, //校驗使用者姓名選項。NO_CHECK：不校驗真實姓名，FORCE_CHECK：強校驗真實姓名
`re_user_name`=>$trueName, //收款使用者真實姓名（不支援給非實名使用者打款）
`partner_trade_no` => $outTradeNo,
`spbill_create_ip` => `127.0.0.1`,
`amount` => intval($totalFee * 100), //單位 轉為分
`desc`=>`付款`, //企業付款操作說明資訊
);
$unified[`sign`] = self::getSign($unified, $config[`key`]);
$responseXml = $this->curlPost(`https://api.mch.weixin.qq.com/mmpaymkttransfers/promotion/transfers`, self::arrayToXml($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($unifiedOrder->err_code);
}
return true;
}
public static function curlGet($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, $options);
}
//https請求 不驗證證照和host
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
$data = curl_exec($ch);
curl_close($ch);
return $data;
}
public function curlPost($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); //設定cURL允許執行的最長秒數
if (!empty($options)) {
curl_setopt_array($ch, $options);
}
//https請求 不驗證證照和host
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_SSL_VERIFYHOST, false);
//第一種方法，cert 與 key 分別屬於兩個.pem檔案
//預設格式為PEM，可以註釋
curl_setopt($ch,CURLOPT_SSLCERTTYPE,`PEM`);
curl_setopt($ch,CURLOPT_SSLCERT,getcwd().`/cert/apiclient_cert.pem`);
//預設格式為PEM，可以註釋
curl_setopt($ch,CURLOPT_SSLKEYTYPE,`PEM`);
curl_setopt($ch,CURLOPT_SSLKEY,getcwd().`/cert/apiclient_key.pem`);
//第二種方式，兩個檔案合成一個.pem檔案
// curl_setopt($ch,CURLOPT_SSLCERT,getcwd().`/all.pem`);
$data = curl_exec($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 $xml;
}
public static function getSign($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;
}
}
?>github下載地址：https://github.com/dedemao/we…