csapi/application/expand/controller/WechatJs.php

<?php
namespace app\expand\controller;
use app\common\service\HelperService;
use think\Cache;
use think\Config;

/**
 * 微信js接口
 * Class WeChat
 * @package app\expand\controller
 */
class WechatJs extends BaseAuth
{
    private $_Account = null;

    public function __construct(){
        parent::__construct();

        $this->_Account = $this->getKey($this->_apiCode);
        //验证是否具有访问这个接口的权限
        if(!isset($this->_Account['Wechat_js_appId'])
            || !isset($this->_Account['Wechat_js_appsecret'])){
            HelperService::returnJson(['code'=>400,'msg'=>'WECHAT js interface unauthorized access','data'=>[]]);
        }

        Config::set('WECHAT_APPID',$this->_Account['Wechat_js_appId']);
        Config::set('WECHAT_APPSECRET',$this->_Account['Wechat_js_appsecret']);
    }

    /**
     * 获取微信js-config
     */
    public function getConfigJs(){

        $cacheTicket = Cache::get('jsapi_'.$this->_apiCode);
        if(!empty($cacheTicket)){
            HelperService::returnJson(['code'=>200,'msg'=>'cache','data'=>"$cacheTicket"]);
        }
        
        $token = $this->_getWxToken();
        
        $requestTicketUrl = "https://api.weixin.qq.com/cgi-bin/ticket/getticket?access_token=$token&type=jsapi";
        $ticketJson = HelperService::httpPost($requestTicketUrl,'',true);
        $ticketArr = @json_decode($ticketJson,true);
        
        if(!isset($ticketArr['ticket'])){
            HelperService::returnJson(['code'=>'400','msg'=>'ticket json is error','data'=>$ticketJson]);
        }
        
        $ticket = $ticketArr['ticket'];

        Cache::set('jsapi_'.$this->_apiCode,$ticket,7200);

        HelperService::returnJson(['code'=>200,'msg'=>'curl','data'=>"$ticket"]);
    }


    /**
     * 获取token
     */
    public function getToken(){

        $cacheToken = Cache::get('access_token_'.$this->_apiCode);
        if(!empty($cacheToken)){
            HelperService::returnJson(['code'=>200,'msg'=>'cache','data'=>"$cacheToken"]);
        }
        
        $token = $this->_getWxToken();
        Cache::set('access_token_'.$this->_apiCode,$token,7200);

        HelperService::returnJson(['code'=>200,'msg'=>'curl','data'=>"$token"]);
    }
    
    /**
     * 获取微信的token
     * @return type
     */
    private function _getWxToken(){
        
        $requestTokenUrl = "https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=".Config::get('WECHAT_APPID')."&secret=".Config::get('WECHAT_APPSECRET');
        $tokenJson = HelperService::httpPost($requestTokenUrl,'',true);

        $tokenArr = @json_decode($tokenJson,true);
        
        if(!isset($tokenArr['access_token'])){
            HelperService::returnJson(['code'=>'400','msg'=>'access_token error','data'=>$tokenJson]);
        }
        
        $token = $tokenArr['access_token'];
        return $token;
    }
    
    /**
     * 获取用户是否获取某卡券
     */
    public function getUserCardInfo(){
        
        $params = $this->_params;
        $rule = [
           'openid|公众号id'=>'require|max:100',
           'card_id|卡券id'=>'require|max:100',
        ];

        $validate = new Validate($rule);
        if(!$validate->check($params)){
            HelperService::returnJson(['code'=>400,'msg'=>$validate->getError(),'data'=>[]]);
        }
        
        $token = $this->_getWxToken();
        $url = "https://api.weixin.qq.com/card/user/getcardlist?access_token=$token";
        $data = [
            "openid"=>$params['openid'],
            "card_id"=>$params['card_id'],
        ];
        $cardListJson = HelperService::httpPost($url, $data, true);
        $cardListArr = @json_encode($cardListJson,true);
        if($cardListArr['errcode']==0 && $cardListArr['errmsg']=='ok'){
            HelperService::returnJson(['code'=>200,'msg'=>'success','data'=>$cardListArr['card_list']]);
        }
        
        HelperService::returnJson(['code'=>400,'msg'=>'error','data'=>$cardListJson]);
    }
}