use thinkAction; //自己封装的curl方法，详情看附录define("TOKEN", "你设置的token");class Customer extends Controller{//校验服务器地址URLpublic function checkServer(){if (isset($_GET[‘echostr‘])) {$this->valid();}else{$this->responseMsg();}}public function valid(){$echoStr = $_GET["echostr"];if($this->checkSignature()){header(‘content-type:text‘);echo $echoStr;exit;}else{echo $echoStr.‘+++‘.TOKEN;exit;}}private function checkSignature(){$signature = $_GET["signature"];$timestamp = $_GET["timestamp"];$nonce = $_GET["nonce"];$token = TOKEN;$tmpArr = array($token, $timestamp, $nonce);sort($tmpArr, SORT_STRING);$tmpStr = implode( $tmpArr );$tmpStr = sha1( $tmpStr );if( $tmpStr == $signature ){return true;}else{return false;}}public function responseMsg(){//此处推荐使用file_get_contents(‘php://input‘)获取后台post过来的数据$postStr = file_get_contents(‘php://input‘);if (!empty($postStr) && is_string($postStr)){$postArr = json_decode($postStr,true);if(!empty($postArr[‘MsgType‘]) && $postArr[‘MsgType‘] == ‘text‘){//用户给客服发送文本消息if($postArr[‘Content‘] == 7){//接收到指定的文本消息，触发事件$fromUsername = $postArr[‘FromUserName‘]; //发送者openid$media_id = ‘上传到微信服务器的图片id，看第三部分‘; //输入想要回复的图片消息的media_id$this->requestIMAGE($fromUsername,$media_id);}}else if(!empty($postArr[‘MsgType‘]) && $postArr[‘MsgType‘] == ‘image‘){//用户给客服发送图片消息，按需求设置}else if($postArr[‘MsgType‘] == ‘event‘ && $postArr[‘Event‘]==‘user_enter_tempsession‘){//用户进入客服事件$fromUsername = $postArr[‘FromUserName‘]; //发送者openid$content = ‘你好,欢迎来到***客服，有什么能帮助您的么‘;$this->requestTXT($fromUsername,$content);}else{exit(‘error‘);}}else{echo "empty";exit;}}//文本回复public function requestTXT($fromUsername,$content){$data=array("touser"=>$fromUsername,"msgtype"=>"text","text"=>array("content"=>$content));$json = json_encode($data,JSON_UNESCAPED_UNICODE);$this->requestAPI($json);}//图片回复public function requestIMAGE($fromUsername,$media_id){$data=array("touser"=>$fromUsername,"msgtype"=>"image","image"=>array("media_id"=>$media_id));$json = json_encode($data,JSON_UNESCAPED_UNICODE);$this->requestAPI($json);}public function requestAPI($json){$access_token = $this->get_accessToken();$action = new Action(); //自己封装的curl方法，详情看附录$url = "https://api.weixin.qq.com/cgi-bin/message/custom/send?access_token=".$access_token;$output = $action->curl_post($url,$json);if($output == 0){echo ‘success‘;exit;}}//调用微信api，获取access_token，有效期7200spublic function get_accessToken(){$url = ‘https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=你的appid&secret=你的秘钥‘; //替换成自己的小程序id和secret$res = file_get_contents($url);$data = json_decode($res,true);$token = $data[‘access_token‘];return $token;}}

public function uploadWxMedia(){$token = $this->get_accessToken();$type = "image";$filepath = Env::get(‘root_path‘).‘public\assets\imageName.png‘; //文件在服务器的绝对路径，按自己存放位置修改$data = array("media"=>new CURLFile($filepath)); //php5.6以上必须用这种方法上传文件$url = "https://api.weixin.qq.com/cgi-bin/media/upload?access_token=".$token."&type=".$type;$action = new Action(); //封装的curl方法，看附录$result = $action->curl_post($url,$data);print_r($result);}//调用微信api，获取access_token，有效期7200spublic function get_accessToken(){$url = ‘https://api.weixin.qq.com/cgi-bin/token?grant_type=client_credential&appid=你的appid&secret=你的秘钥‘; //替换成自己的小程序id和secret$res = file_get_contents($url);$data = json_decode($res,true);$token = $data[‘access_token‘];return $token;}

namespace think;class Action{//get方式请求接口public function get_json($url){$data = file_get_contents($url);//转换成数组$data = json_decode($data,true);//输出return $data;}//post方式请求接口public function curl_post($url,$data,$headers = null){//$data 是一个 array() 数组；未编码$curl = curl_init(); // 启动一个CURL会话if(substr($url,0,5)==‘https‘){// 跳过证书检查curl_setopt($curl, CURLOPT_SSL_VERIFYPEER, false);//只有在CURL低于7.28.1时CURLOPT_SSL_VERIFYHOST才支持使用1表示true，高于这个版本就需要使用2表示了（true也不行）。curl_setopt($curl, CURLOPT_SSL_VERIFYHOST, 2);}curl_setopt($curl, CURLOPT_URL, $url);curl_setopt($curl, CURLOPT_HEADER, 0);curl_setopt($curl, CURLOPT_RETURNTRANSFER, 1);curl_setopt($curl, CURLOPT_CUSTOMREQUEST, "POST");curl_setopt($curl, CURLOPT_POSTFIELDS, $data);if($headers != null){//post请求中携带header参数curl_setopt($curl, CURLOPT_HTTPHEADER, $headers);}//返回api的json对象$response = curl_exec($curl);//关闭URL请求curl_close($curl);//返回json对象return $response;}}