微信支付（转载)

这篇文章主要为大家详细介绍了PHP微信支付开发过程，具有一定的参考价值，感兴趣的小伙伴们可以参考一下

1.开发环境
Thinkphp 3.2.3
微信：服务号，已认证
开发域名：http://test.paywechat.com (自定义的域名，外网不可访问)

2.需要相关文件和权限
微信支付需申请开通
微信公众平台开发者文档：http://mp.weixin.qq.com/wiki/home/index.html
微信支付开发者文档：https://pay.weixin.qq.com/wiki/doc/api/index.html
微信支付SDK下载地址：https://pay.weixin.qq.com/wiki/doc/api/jsapi.php?chapter=11_1

3.开发
下载好微信支付PHP版本的SDK，文件目录为下图：

现在介绍微信支付授权目录问题，首先是微信支付开发配置里面的支付授权目录填写，

然后填写JS接口安全域。

这些设置完，基本完成一半,注意设置的目录和我thinkphp里面的目录。

4.微信支付配置

现在开始贴出代码：

namespace Wechat\Controller;

use Think\Controller;

class ParentController extends Controller {

protected $options = array (

'token' => '', // 填写你设定的key

'encodingaeskey' => '', // 填写加密用的EncodingAESKey

'appid' => '', // 填写高级调用功能的app id

'appsecret' => '', // 填写高级调用功能的密钥

'debug' => false,

'logcallback' => ''

);

public $errCode = 40001;

public $errMsg = "no access";

/**

* 获取access_token

* @return mixed|boolean|unknown

*/

public function getToken(){

$cache_token = S('exp_wechat_pay_token');

if(!empty($cache_token)){

return $cache_token;

}

$url = 'https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=%s&secret=%s';

$url = sprintf($url,$this->options['appid'],$this->options['appsecret']);

$result = $this->http_get($url);

$result = json_decode($result,true);

if(empty($result)){

return false;

}

S('exp_wechat_pay_token',$result['access_token'],array('type'=>'file','expire'=>3600));

return $result['access_token'];

}

/**

* 发送客服消息

* @param array $data 消息结构{"touser":"OPENID","msgtype":"news","news":{...}}

*/

public function sendCustomMessage($data){

$token = $this->getToken();

if (empty($token)) return false;

$url = 'https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=%s';

$url = sprintf($url,$token);

$result = $this->http_post($url,self::json_encode($data));

if ($result)

{

$json = json_decode($result,true);

if (!$json || !empty($json['errcode'])) {

$this->errCode = $json['errcode'];

$this->errMsg = $json['errmsg'];

return false;

}

return $json;

}

return false;

}

/**

* 发送模板消息

* @param unknown $data

* @return boolean|unknown

*/

public function sendTemplateMessage($data){

$token = $this->getToken();

if (empty($token)) return false;

$url = "https://api.weixin.qq.com/cgi-bin/message/template/send?access_token=%s";

$url = sprintf($url,$token);

$result = $this->http_post($url,self::json_encode($data));

if ($result)

{

$json = json_decode($result,true);

if (!$json || !empty($json['errcode'])) {

$this->errCode = $json['errcode'];

$this->errMsg = $json['errmsg'];

return false;

}

return $json;

}

return false;

}

public function getFileCache($name){

return S($name);

}

/**

* 微信api不支持中文转义的json结构

* @param array $arr

*/

static function json_encode($arr) {

$parts = array ();

$is_list = false;

//Find out if the given array is a numerical array

$keys = array_keys ( $arr );

$max_length = count ( $arr ) - 1;

if (($keys [0] === 0) && ($keys [$max_length] === $max_length )) { //See if the first key is 0 and last key is length - 1

$is_list = true;

for($i = 0; $i < count ( $keys ); $i ++) { //See if each key correspondes to its position

if ($i != $keys [$i]) { //A key fails at position check.

$is_list = false; //It is an associative array.

break;

}

foreach ( $arr as $key => $value ) {

if (is_array ( $value )) { //Custom handling for arrays

if ($is_list)

$parts [] = self::json_encode ( $value ); /* :RECURSION: */

else

$parts [] = '"' . $key . '":' . self::json_encode ( $value ); /* :RECURSION: */

} else {

$str = '';

if (! $is_list)

$str = '"' . $key . '":';

//Custom handling for multiple data types

if (!is_string ( $value ) && is_numeric ( $value ) && $value<2000000000)

$str .= $value; //Numbers

elseif ($value === false)

$str .= 'false'; //The booleans

elseif ($value === true)

$str .= 'true';

else

$str .= '"' . addslashes ( $value ) . '"'; //All other things

// :TODO: Is there any more datatype we should be in the lookout for? (Object?)

$parts [] = $str;

}

$json = implode ( ',', $parts );

if ($is_list)

return '[' . $json . ']'; //Return numerical JSON

return '{' . $json . '}'; //Return associative JSON

}

/**

+----------------------------------------------------------

* 生成随机字符串

+----------------------------------------------------------

* @param int $length 要生成的随机字符串长度

* @param string $type 随机码类型：0，数字+大小写字母；1，数字；2，小写字母；3，大写字母；4，特殊字符；-1，数字+大小写字母+特殊字符

+----------------------------------------------------------

* @return string

+----------------------------------------------------------

*/

static public function randCode($length = 5, $type = 2){

$arr = array(1 => "0123456789", 2 => "abcdefghijklmnopqrstuvwxyz", 3 => "ABCDEFGHIJKLMNOPQRSTUVWXYZ", 4 => "~@#$%^&*(){}[]|");

if ($type == 0) {

array_pop($arr);

$string = implode("", $arr);

} elseif ($type == "-1") {

$string = implode("", $arr);

} else {

$string = $arr[$type];

}

$count = strlen($string) - 1;

$code = '';

for ($i = 0; $i < $length; $i++) {

$code .= $string[rand(0, $count)];

}

return $code;

}

/**

* GET 请求

* @param string $url

*/

private function http_get($url){

$oCurl = curl_init();

if(stripos($url,"https://")!==FALSE){

curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);

curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, FALSE);

curl_setopt($oCurl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1

}

curl_setopt($oCurl, CURLOPT_URL, $url);

curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );

$sContent = curl_exec($oCurl);

$aStatus = curl_getinfo($oCurl);

curl_close($oCurl);

if(intval($aStatus["http_code"])==200){

return $sContent;

}else{

return false;

}

/**

* POST 请求

* @param string $url

* @param array $param

* @param boolean $post_file 是否文件上传

* @return string content

*/

private function http_post($url,$param,$post_file=false){

$oCurl = curl_init();

if(stripos($url,"https://")!==FALSE){

curl_setopt($oCurl, CURLOPT_SSL_VERIFYPEER, FALSE);

curl_setopt($oCurl, CURLOPT_SSL_VERIFYHOST, false);

curl_setopt($oCurl, CURLOPT_SSLVERSION, 1); //CURL_SSLVERSION_TLSv1

}

if (is_string($param) || $post_file) {

$strPOST = $param;

} else {

$aPOST = array();

foreach($param as $key=>$val){

$aPOST[] = $key."=".urlencode($val);

}

$strPOST = join("&", $aPOST);

}

curl_setopt($oCurl, CURLOPT_URL, $url);

curl_setopt($oCurl, CURLOPT_RETURNTRANSFER, 1 );

curl_setopt($oCurl, CURLOPT_POST,true);

curl_setopt($oCurl, CURLOPT_POSTFIELDS,$strPOST);

$sContent = curl_exec($oCurl);

$aStatus = curl_getinfo($oCurl);

curl_close($oCurl);

if(intval($aStatus["http_code"])==200){

return $sContent;

}else{

return false;

}

namespace Wechat\Controller;

use Wechat\Controller\ParentController;

/**

* 微信支付测试控制器

* @file TestController.class.php

* @author Gary <lizhiyong2204@sina.com>

* @date 2015年8月4日

* @todu

*/

class TestController extends ParentController {

private $_order_body = 'xxx';

private $_order_goods_tag = 'xxx';

public function __construct(){

parent::__construct();

require_once ROOT_PATH."Api/lib/WxPay.Api.php";

require_once ROOT_PATH."Api/lib/WxPay.JsApiPay.php";

}

public function index(){

//①、获取用户openid

$tools = new \JsApiPay();

$openId = $tools->GetOpenid();

//②、统一下单

$input = new \WxPayUnifiedOrder();

//商品描述

$input->SetBody($this->_order_body);

//附加数据，可以添加自己需要的数据，微信回异步回调时会附加这个数据

$input->SetAttach('xxx');

//商户订单号

$out_trade_no = \WxPayConfig::MCHID.date("YmdHis");

$input->SetOut_trade_no($out_trade_no);

//总金额,订单总金额，只能为整数,单位为分

$input->SetTotal_fee(1);

//交易起始时间

$input->SetTime_start(date("YmdHis"));

//交易结束时间

$input->SetTime_expire(date("YmdHis", time() + 600));

//商品标记

$input->SetGoods_tag($this->_order_goods_tag);

//通知地址,接收微信支付异步通知回调地址 SITE_URL=http://test.paywechat.com/Charge

$notify_url = SITE_URL.'/index.php/Test/notify.html';

$input->SetNotify_url($notify_url);

//交易类型

$input->SetTrade_type("JSAPI");

$input->SetOpenid($openId);

$order = \WxPayApi::unifiedOrder($input);

$jsApiParameters = $tools->GetJsApiParameters($order);

//获取共享收货地址js函数参数

$editAddress = $tools->GetEditAddressParameters();

$this->assign('openId',$openId);

$this->assign('jsApiParameters',$jsApiParameters);

$this->assign('editAddress',$editAddress);

$this->display();

}

/**

* 异步通知回调方法

*/

public function notify(){

require_once ROOT_PATH."Api/lib/notify.php";

$notify = new \PayNotifyCallBack();

$notify->Handle(false);

//这里的IsSuccess是我自定义的一个方法，后面我会贴出这个文件的代码，供参考。

$is_success = $notify->IsSuccess();

$bdata = $is_success['data'];

//支付成功

if($is_success['code'] == 1){

$news = array(

'touser' => $bdata['openid'],

'msgtype' => 'news',

'news' => array (

'articles'=> array (

array(

'title' => '订单支付成功',

'description' => "支付金额：{$bdata['total_fee']}\n".

"微信订单号：{$bdata['transaction_id']}\n"

'picurl' => '',

'url' => ''

)

);

//发送微信支付通知

$this->sendCustomMessage($news);

}else{//支付失败

}

/**

* 支付成功页面

* 不可靠的回调

*/

public function ajax_PaySuccess(){

//订单号

$out_trade_no = I('post.out_trade_no');

//支付金额

$total_fee = I('post.total_fee');

/*相关逻辑处理*/

贴上模板HTML

<html>

<head>

<meta http-equiv="content-type" content="text/html;charset=utf-8"/>

<meta name="viewport" content="width=device-width, initial-scale=1"/>

<title>微信支付样例-支付</title>

<script type="text/javascript">

//调用微信JS api 支付

function jsApiCall()

{

WeixinJSBridge.invoke(

'getBrandWCPayRequest',

{$jsApiParameters},

function(res){

WeixinJSBridge.log(res.err_msg);

//取消支付

if(res.err_msg == 'get_brand_wcpay_request:cancel'){

//处理取消支付的事件逻辑

}else if(res.err_msg == "get_brand_wcpay_request：ok"){

/*使用以上方式判断前端返回,微信团队郑重提示：

res.err_msg将在用户支付成功后返回 ok，但并不保证它绝对可靠。

这里可以使用Ajax提交到后台，处理一些日志，如Test控制器里面的ajax_PaySuccess方法。

*/

}

alert(res.err_code+res.err_desc+res.err_msg);

}

);

}

function callpay()

{

if (typeof WeixinJSBridge == "undefined"){

if( document.addEventListener ){

document.addEventListener('WeixinJSBridgeReady', jsApiCall, false);

}else if (document.attachEvent){

document.attachEvent('WeixinJSBridgeReady', jsApiCall);

document.attachEvent('onWeixinJSBridgeReady', jsApiCall);

}

}else{

jsApiCall();

}

//获取共享地址

function editAddress()

{

WeixinJSBridge.invoke(

'editAddress',

{$editAddress},

function(res){

var value1 = res.proviceFirstStageName;

var value2 = res.addressCitySecondStageName;

var value3 = res.addressCountiesThirdStageName;

var value4 = res.addressDetailInfo;

var tel = res.telNumber;

alert(value1 + value2 + value3 + value4 + ":" + tel);

}

);

}

window.onload = function(){

if (typeof WeixinJSBridge == "undefined"){

if( document.addEventListener ){

document.addEventListener('WeixinJSBridgeReady', editAddress, false);

}else if (document.attachEvent){

document.attachEvent('WeixinJSBridgeReady', editAddress);

document.attachEvent('onWeixinJSBridgeReady', editAddress);

}

}else{

editAddress();

}

};

</script>

</head>

<body>

<br/>

<font color="#9ACD32"><b>该笔订单支付金额为<span style="color:#f00;font-size:50px">1分</span>钱</b></font><br/><br/>

<div align="center">

<button style=

"width:210px; height:50px; border-radius: 15px;background-color:#FE6714; border:0px #FE6714 solid; cursor: pointer; color:white; font-size:16px;"

type="button" onclick="callpay()" >立即支付</button>

</div>

</body>

</html

notify.php文件代码，这里有在官方文件里新添加的一个自定义方法。

require_once ROOT_PATH."Api/lib/WxPay.Api.php";

require_once ROOT_PATH.'Api/lib/WxPay.Notify.php';

require_once ROOT_PATH.'Api/lib/log.php';

//初始化日志

$logHandler= new \CLogFileHandler(ROOT_PATH."/logs/".date('Y-m-d').'.log');

$log = \Log::Init($logHandler, 15);

class PayNotifyCallBack extends WxPayNotify

{

protected $para = array('code'=>0,'data'=>'');

//查询订单

public function Queryorder($transaction_id)

{

$input = new \WxPayOrderQuery();

$input->SetTransaction_id($transaction_id);

$result = \WxPayApi::orderQuery($input);

\Log::DEBUG("query:" . json_encode($result));

if(array_key_exists("return_code", $result)

&& array_key_exists("result_code", $result)

&& $result["return_code"] == "SUCCESS"

&& $result["result_code"] == "SUCCESS")

{

return true;

}

$this->para['code'] = 0;

$this->para['data'] = '';

return false;

}

//重写回调处理函数

public function NotifyProcess($data, &$msg)

{

\Log::DEBUG("call back:" . json_encode($data));

$notfiyOutput = array();

if(!array_key_exists("transaction_id", $data)){

$msg = "输入参数不正确";

$this->para['code'] = 0;

$this->para['data'] = '';

return false;

}

//查询订单，判断订单真实性

if(!$this->Queryorder($data["transaction_id"])){

$msg = "订单查询失败";

$this->para['code'] = 0;

$this->para['data'] = '';

return false;

}

$this->para['code'] = 1;

$this->para['data'] = $data;

return true;

}

/**

* 自定义方法检测微信端是否回调成功方法

* @return multitype:number string

*/

public function IsSuccess(){

return $this->para;

}

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