tp5利用钉钉进行工作流审批

 /**
 * 钉钉access_token获取
 * @param 
 * @return access_token
 */
 public static function getAccessToken(){
 if(empty(cache('dd_access_token'))){
 $AppKey = config('ding_app_key');
 $AppSecret = config('ding_app_secret');
 $url = "https://oapi.dingtalk.com/gettoken?appkey=".$AppKey."&appsecret=".$AppSecret;
 $re = file_get_contents($url);
 $obj=json_decode($re);
 //dump($obj);
 $access_token = $obj->access_token;
 cache('dd_access_token', $access_token,7200);
 }else{
 $access_token = cache('dd_access_token');
 }
 return $access_token;
 }

 public function index()
 {
 $access_token = ApiService::getAccessToken();
 //通过审批创建的url获得
 $data['process_code'] = 'PROC-VFYJYF2V-84X3UYTT455XP7KENI603-0EWMMGTJ-I';
 $data['originator_user_id'] = '093208556229304103';
 //部门id
 $data['dept_id'] = '105672100';
 $form_component_values=array();
 $form_component_values[]=['name'=>'单行输入框','value'=>'123']
 $form_component_values[]=['name'=>['开始时间','结束时间'],'value'=>['2019-02-19','2019-02-25']];
 $form_component_values[]=['name'=>'图片','value'=>['http://pic.58pic.com/58pic/15/68/59/71X58PICNjx_1024.jpg','http://img.juimg.com/tuku/yulantu/140218/330598-14021R23A410.jpg']];
 $data['form_component_values'] = $form_component_values;
 $data= json_encode($data);
 $timeout = 5000;
 $http_header = [
 'Content-Type: application/json;'
 ];
 $ch = curl_init();
 curl_setopt ($ch, CURLOPT_URL, $token);
 curl_setopt ($ch, CURLOPT_POST, 1);
 curl_setopt ($ch, CURLOPT_POSTFIELDS, $data);
 curl_setopt ($ch, CURLOPT_HEADER, false);
 curl_setopt ($ch, CURLOPT_HTTPHEADER,$http_header);
 curl_setopt ($ch, CURLOPT_SSL_VERIFYPEER,false);
 curl_setopt ($ch, CURLOPT_CONNECTTIMEOUT, $timeout);
 curl_setopt ($ch, CURLOPT_RETURNTRANSFER, 1);
 $result = curl_exec($ch);
 if (false === $result) {
 $result = curl_errno($ch);
 }
 curl_close($ch);
 return $result;
 }

 /**
 * 注册回调
 * 
 * @param 
 * @return 
 */
 public static function register_call_back(){
 $token = config('ding_token');
 $aes_key = config('ding_aes_key');
 //获取access_token
 $token = self::getAccessToken();
 //注册url
 $url = "https://oapi.dingtalk.com/call_back/register_call_back?access_token=".$token;
 // call_back_tag:需要注册的内容
 // token：加解密需要用到的token，自定义
 // aes_key：数据加密密钥。用于回调数据的加密，长度固定为43个字符，从a-z, A-Z, 0-9共62个字符中选取,您可以随机生成
 // url：你本地的回调地址，必须是可以外网访问
 $data = array('call_back_tag'=>['bpms_task_change','bpms_instance_change'],'token'=> $token,'aes_key'=> $aes_key,'url'=>config('ding_callback'));
 return self::curl_post($url,$data);
 } 
类似的，你还可以进行回调地址注册的查询和内容
 /**
 * 查询回调
 * 
 * @param 
 * @return 
 */
 public static function get_call_back(){
 $token = self::getAccessToken();
 $url = "https://oapi.dingtalk.com/call_back/get_call_back?access_token=".$token;
 $re = file_get_contents($url);
 return $re;
 } 
 /**
 * 更新回调
 * 
 * @param 
 * @return 
 */
 public static function update_call_back(){
 $token = self::getAccessToken();
 $url = "https://oapi.dingtalk.com/call_back/update_call_back?access_token=".$token;
 $data = array('call_back_tag'=>['bpms_instance_change'],'token'=>'123456','aes_key'=>'lfqrojwt31jnvdb5li2arj0f1qz4g8g6eqw45swgyak','url'=>config('ding_callback'));
 return self::curl_post($url,$data);
 }

 public function callback(){
 //token和aes_key就是你注册地址的时填写的内容
 $token = config('ding_token');
 $aes_key = config('ding_aes_key');
 //suite_key在内部应用使用CorpId即可，官方文档没有明确说明
 $suite_key = config('ding_suite_key');
 $signature = $_GET["signature"];
 $timeStamp = $_GET["timestamp"];
 $nonce = $_GET["nonce"];
 $postdata = file_get_contents("php://input");
 $postList = json_decode($postdata,true);
 $encrypt = $postList['encrypt'];
 //使用官方提供的加解密
 $crypt = new DingtalkCrypt();
 $crypt->DingtalkCrypt($token, $aes_key, $suite_key);
 $msg = "";
 $errCode = $crypt->DecryptMsg($signature, $timeStamp, $nonce, $encrypt, $msg);
 if ($errCode != 0){
 }else{
 /**
 * 创建成功后的回调推送
 */
 $eventMsg = json_decode($msg);
 $eventType = $eventMsg->EventType;
 /**
 * 工作流变动
 */
 if("bpms_instance_change" === $eventType){
 /**
 * 编写你需要的内容
 */ 
 } 
 $res = "success";
 $encryptMsg = "";
 $errCode = $crypt->EncryptMsg($res, $timeStamp, $nonce, $encryptMsg);
 if ($errCode == 0){
 echo $encryptMsg;
 } 
 }
 }