释放双眼,带上耳机,听听看~!
微信支付的步骤大致和支付宝支付的步骤差不多,这里我讲的详细一点。
第一步:建立一个支付控制器pay.php,是由上个页面选择好支付方式之后确认支付后需要经过的控制器(这里选择的是微信支付),代码 如下:
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namespace app\mobile\controller;
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use think\Controller;
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class Pay extends Controller
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{
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public function pay_order()
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{
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$res = new OrderGoods();
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//获取订单号
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$where[‘id’] = input(‘post.order_sn’);
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$reoderSn = input(‘post.order_sn’);
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//查询订单信息
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$order_info = $res->where($where)->find();
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//获取支付方式
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$pay_type = input(‘post.pay_type’);//微信支付 或者支付宝支付
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//获取支付金额
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$money = input(‘post.totle_sum’);
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//判断支付方式
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switch ($pay_type) {
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case ‘ali’;//如果支付方式为支付宝支付
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break;
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case ‘wx’;
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$type[‘pay_type’] = ‘wx’;//更新支付方式为微信
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$res->where($where)->update($type);
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$wx = new Wxpay();//实例化微信支付控制器
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$body = ‘订单号’ . $order_info;//支付说明
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$out_trade_no = $reoderSn;//订单号
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$total_fee = $money * 100;//支付金额(乘以100)
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$notify_url = ”;//回调地址
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$order = $wx->getPrePayOrder($body, $out_trade_no, $total_fee, $notify_url);//调用微信支付的方法
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if ($order[‘prepay_id’]){//判断返回参数中是否有prepay_id
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$order1 = $wx->getOrder($order[‘prepay_id’]);//执行二次签名返回参数
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echo json_encode(array(‘status’ => 1, ‘prepay_order’ => no_null($order1)));
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} else {
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echo json_encode(array(‘status’ => 0, ‘msg’ => $order[‘err_code_des’]));
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}
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break;
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}
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}
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}
然后创建微信支付控制器了。命名为wx.php,用于执行微信支付,代码如下:
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namespace app\mobile\controller;
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use think\Controller;
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use think\Db;
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class WxPay extends Controller{
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/*
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配置参数
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*/
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private $config = array(
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‘appid’ => “”,//”wxcf1dded808489e2c”, /*微信开放平台上的应用id*/
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‘mch_id’ => “”,//”1440493402″, /*微信申请成功之后邮件中的商户id*/
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‘api_key’ => “” /*在微信商户平台上自己设定的api密钥 32位*/
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);
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//获取预支付订单
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public function getPrePayOrder($body, $out_trade_no, $total_fee, $notify_url){
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$url = “https://api.mch.weixin.qq.com/pay/unifiedorder”;
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$onoce_str = $this->getRandChar(32);
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$data[“appid”] = $this->config[“appid”];
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$data[“body”] = $body;
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$data[“mch_id”] = $this->config[‘mch_id’];
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$data[“nonce_str”] = $onoce_str;
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$data[“notify_url”] = $notify_url;
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$data[“out_trade_no”] = $out_trade_no;
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$data[“spbill_create_ip”] = $this->get_client_ip();
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$data[“total_fee”] = $total_fee;
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$data[“trade_type”] = “APP”;
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$s = $this->getSign($data, false);
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$data[“sign”] = $s;
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$xml = $this->arrayToXml($data);
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$response = $this->postXmlCurl($xml, $url);
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//将微信返回的结果xml转成数组
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// return $this->xmlstr_to_array($response);
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return xmlToArray($response);
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}
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//执行第二次签名,才能返回给客户端使用
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public function getOrder($prepayId){
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$data[“appid”] = $this->config[“appid”];
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$data[“noncestr”] = $this->getRandChar(32);;
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$data[“package”] = “Sign=WXPay”;
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$data[“partnerid”] = $this->config[‘mch_id’];
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$data[“prepayid”] = $prepayId;
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$data[“timestamp”] = time();
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$s = $this->getSign($data, false);
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$data[“sign”] = $s;
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return $data;
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}
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/*
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生成签名
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*/
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function getSign($Obj)
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{
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foreach ($Obj as $k => $v)
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{
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$Parameters[strtolower($k)] = $v;
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}
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//签名步骤一:按字典序排序参数
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ksort($Parameters);
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$String = $this->formatBizQueryParaMap($Parameters, false);
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//echo “【string】 =”.$String.”</br>”;
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//签名步骤二:在string后加入KEY
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$String = $String.“&key=”.$this->config[‘api_key’];
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// echo “<textarea style=’width: 50%; height: 150px;’>$String</textarea> <br />”;
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//签名步骤三:MD5加密
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$result_ = strtoupper(md5($String));
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return $result_;
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}
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//获取指定长度的随机字符串
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function getRandChar($length){
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$str = null;
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$strPol = “ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789abcdefghijklmnopqrstuvwxyz”;
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$max = strlen($strPol)-1;
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for($i=0;$i<$length;$i++){
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$str.=$strPol[rand(0,$max)];//rand($min,$max)生成介于min和max两个数之间的一个随机整数
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}
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return $str;
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}
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//数组转xml
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function arrayToXml($arr)
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{
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$xml = “<xml>”;
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foreach ($arr as $key=>$val)
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{
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if (is_numeric($val))
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{
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$xml.=“<“.$key.“>”.$val.“</”.$key.“>”;
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}
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else
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$xml.=“<“.$key.“><![CDATA[“.$val.“]]></”.$key.“>”;
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}
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$xml.=“</xml>”;
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return $xml;
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}
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//post https请求,CURLOPT_POSTFIELDS xml格式
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function postXmlCurl($xml,$url,$second=30)
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{
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//初始化curl
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$ch = curl_init();
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//超时时间
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curl_setopt($ch,CURLOPT_TIMEOUT,$second);
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//这里设置代理,如果有的话
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//curl_setopt($ch,CURLOPT_PROXY, ‘8.8.8.8’);
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//curl_setopt($ch,CURLOPT_PROXYPORT, 8080);
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curl_setopt($ch,CURLOPT_URL, $url);
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curl_setopt($ch,CURLOPT_SSL_VERIFYPEER,FALSE);
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curl_setopt($ch,CURLOPT_SSL_VERIFYHOST,FALSE);
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//设置header
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curl_setopt($ch, CURLOPT_HEADER, FALSE);
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//要求结果为字符串且输出到屏幕上
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curl_setopt($ch, CURLOPT_RETURNTRANSFER, TRUE);
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//post提交方式
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curl_setopt($ch, CURLOPT_POST, TRUE);
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curl_setopt($ch, CURLOPT_POSTFIELDS, $xml);
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//运行curl
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$data = curl_exec($ch);
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//返回结果
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if($data)
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{
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curl_close($ch);
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return $data;
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}
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else
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{
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$error = curl_errno($ch);
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echo “curl出错,错误码:$error”.“<br>”;
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echo “<a href=’http://curl.haxx.se/libcurl/c/libcurl-errors.html’>错误原因查询</a></br>”;
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curl_close($ch);
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return false;
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}
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}
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/*
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获取当前服务器的IP
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*/
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function get_client_ip()
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{
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if ($_SERVER[‘REMOTE_ADDR’]) {
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$cip = $_SERVER[‘REMOTE_ADDR’];
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} elseif (getenv(“REMOTE_ADDR”)) {
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$cip = getenv(“REMOTE_ADDR”);
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} elseif (getenv(“HTTP_CLIENT_IP”)) {
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$cip = getenv(“HTTP_CLIENT_IP”);
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} else {
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$cip = “unknown”;
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}
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return $cip;
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}
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//将数组转成uri字符串
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function formatBizQueryParaMap($paraMap, $urlencode)
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{
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$buff = “”;
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ksort($paraMap);
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foreach ($paraMap as $k => $v)
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{
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if($urlencode)
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{
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$v = urlencode($v);
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}
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$buff .= strtolower($k) . “=” . $v . “&”;
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}
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$reqPar;
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if (strlen($buff) > 0)
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{
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$reqPar = substr($buff, 0, strlen($buff)-1);
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}
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return $reqPar;
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}
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/**
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xml转成数组
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*/
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// function xmlstr_to_array($xmlstr) {
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// $doc = new DOMDocument();
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// $doc->loadXML($xmlstr);
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// return $this->domnode_to_array($doc->documentElement);
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// }
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function domnode_to_array($node) {
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$output = array();
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switch ($node->nodeType) {
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case XML_CDATA_SECTION_NODE:
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case XML_TEXT_NODE:
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$output = trim($node->textContent);
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break;
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case XML_ELEMENT_NODE:
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for ($i=0, $m=$node->childNodes->length; $i<$m; $i++) {
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$child = $node->childNodes->item($i);
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$v = $this->domnode_to_array($child);
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if(isset($child->tagName)) {
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$t = $child->tagName;
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if(!isset($output[$t])) {
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$output[$t] = array();
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}
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$output[$t][] = $v;
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}
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elseif($v) {
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$output = (string) $v;
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}
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}
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if(is_array($output)) {
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if($node->attributes->length) {
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$a = array();
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foreach($node->attributes as $attrName => $attrNode) {
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$a[$attrName] = (string) $attrNode->value;
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}
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$output[‘@attributes’] = $a;
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}
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foreach ($output as $t => $v) {
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if(is_array($v) && count($v)==1 && $t!=‘@attributes’) {
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$output[$t] = $v[0];
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}
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}
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}
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break;
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}
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return $output;
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}
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}
微信支付控制器里面基本不用动,只需要改几个参数就行了。很简单。
回调控制器和方法我这里就不写了,很简单的,不懂得可以私信。
流程已经没了,执行一下程序,看一下返回给前端的参数示例:
把这些参数通过和前端交互给到前端就行了,接下来就是前端拿着参数去进行支付,支付成功系统会自动调用你写的回调地址改写你所需要的代码逻辑。
版权声明:本文为博主原创文章,遵循 CC 4.0 BY-SA 版权协议,转载请附上原文出处链接和本声明。
本文链接:https://blog.csdn.net/weixin_42677083/article/details/85221104