TP5调用微信JSSDK 教程 - 测试成功案例

前提：必需了解TP5的全局配置，扩展目录，composer，依赖注入的概念；

第一步：首先配置加载官方JSSDK类

    "autoload": {
        "files": [],
        "classmap": [],
        "psr-4": {
            "Extend\\jssdk\\": "jssdk/"
        }
    }

执行：conposer update (注意保留锁文件，以免更新不要的更新）

第二步：修改类如下：

 <?php
 namespace jssdk;

 class Jssdk {
   private $appId;
   private $appSecret;

   public function __construct($appId, $appSecret) {
     $this->appId = $appId;
     $this->appSecret = $appSecret;
   }

   public function getSignPackage() {
     $jsapiTicket = $this->getJsApiTicket();

     // 注意 URL 一定要动态获取，不能 hardcode.
     $protocol = (!empty($_SERVER['HTTPS']) && $_SERVER['HTTPS'] !== 'off' || $_SERVER['SERVER_PORT'] == 443) ? "https://" : "http://";
     $url = "$protocol$_SERVER[SERVER_NAME]$_SERVER[REQUEST_URI]";

     $timestamp = time();
     $nonceStr = $this->createNonceStr();

     // 这里参数的顺序要按照 key 值 ASCII 码升序排序
     $string = "jsapi_ticket=$jsapiTicket&noncestr=$nonceStr&timestamp=$timestamp&url=$url";

     $signature = sha1($string);

     $signPackage = array(
       "appId"     => $this->appId,
       "nonceStr"  => $nonceStr,
       "timestamp" => $timestamp,
       "url"       => $url,
       "signature" => $signature,
       "rawString" => $string
     );
     return $signPackage;
   }

   private 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;
   }

   private function getJsApiTicket() {
     // jsapi_ticket 应该全局存储与更新，以下代码以写入到文件中做示例
     $data = json_decode($this->get_php_file(EXTEND_PATH .'jssdk'. DS ."jsapi_ticket.php"));
     if ($data->expire_time < time()) {
       $accessToken = $this->getAccessToken();
       // 如果是企业号用以下 URL 获取 ticket
       // $url = "https://qyapi.weixin.qq.com/cgi-bin/get_jsapi_ticket?access_token=$accessToken";
       $url = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?type=jsapi&access_token=$accessToken";
       $res = json_decode($this->httpGet($url));
       $ticket = $res->ticket;
       if ($ticket) {
         $data->expire_time = time() + 7000;
         $data->jsapi_ticket = $ticket;
         $this->set_php_file("jsapi_ticket.php", json_encode($data));
       }
     } else {
       $ticket = $data->jsapi_ticket;
     }

     return $ticket;
   }

   private function getAccessToken() {
     // access_token 应该全局存储与更新，以下代码以写入到文件中做示例
     $data = json_decode($this->get_php_file(EXTEND_PATH .'jssdk'. DS ."access_token.php"));
     if ($data->expire_time < time()) {
       // 如果是企业号用以下URL获取access_token
       // $url = "https://qyapi.weixin.qq.com/cgi-bin/gettoken?corpid=$this->appId&corpsecret=$this->appSecret";
       $url = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=$this->appId&secret=$this->appSecret";
       $res = json_decode($this->httpGet($url));
       $access_token = $res->access_token;
       if ($access_token) {
         $data->expire_time = time() + 7000;
         $data->access_token = $access_token;
         $this->set_php_file("access_token.php", json_encode($data));
       }
     } else {
       $access_token = $data->access_token;
     }
     return $access_token;
   }

   private function httpGet($url) {
     $curl = curl_init();
     curl_setopt($curl, CURLOPT_RETURNTRANSFER, true);
     curl_setopt($curl, CURLOPT_TIMEOUT, 500);
     curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);
     curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, false);
     curl_setopt($curl, CURLOPT_URL, $url);

     $res = curl_exec($curl);
     curl_close($curl);

     return $res;
   }

   private function get_php_file($filename) {
     return trim(substr(file_get_contents($filename), 15));
   }
   private function set_php_file($filename, $content) {
     $fp = fopen($filename, "w");
     fwrite($fp, "<?php exit();?>" . $content);
     fclose($fp);
   }
 }

第三步：调用：

　　全局配置config.php;写入APPID & APPSECRET

'wxConfig'=>[
    'id'=>'',
    'secret'=>'',
]

1. 异步调用：请使用参考（TP5调用微信JSSDK 教程 —— 之异步使用）提供的代码配置，参考本文步骤使用：
2. 同步调用：

   use jssdk\Jssdk;

        public function index()
        {
            $config = config('wxConfig');
            $jssdk = new Jssdk($config['id'], $config['secret']);
            $signPackage = $jssdk->GetSignPackage();
            return $this->fetch('',[
                'signPackage'=>$signPackage
            ]);
        }

第四步：完成；

资料下载包：链接：https://pan.baidu.com/s/1i49hovr 密码：19ux
微信细节配置参考：http://laichuanfeng.com/work/website-wechat-share/