预约完成通知，whatsapp新模版

application/admin/controller/Lessonslot.php

@@ -134,7 +134,7 @@ class Lessonslot extends Backend
             if($paytype == 4){
                 $number = 1; //试课只能选一个人
             }
-            if(empty($package_order) && empty($trylessonorder_id)){
+            if(empty($packageorder_id) && empty($trylessonorder_id)){
                 $this->error('请选择任意一种支付方式');
             }
 
@@ -681,4 +681,44 @@ class Lessonslot extends Backend
         $this->result('',1,'修改完成','json');
     }
 
+    //发送whatapp消息的方法
+    private function whatapp($receive_mobile,$template,$code,$parameters){
+        if(empty($receive_mobile)){return true;}
+
+        $token = config('site.whatsapp_token');
+
+        //发送者
+        $mobile_id = '337736419413019'; //Elin Dance Stuido 2:+65 8015 4154  ,  WhatsApp Business Account ID: 336509229537586
+
+        //发送
+        $url = 'https://graph.facebook.com/v19.0/'.$mobile_id.'/messages';
+        $header = [
+            'Authorization: Bearer ' . $token,
+            'Content-Type: application/json',
+        ];
+        $body = [
+            'messaging_product' => 'whatsapp',
+            'recipient_type' => 'individual',
+            'to' => $receive_mobile,
+            'type' => 'template',
+            'template' => [
+                'name' => $template,
+                'language' => [
+                    'code' => $code
+                ],
+                'components' => [
+                    [
+                        'type' => 'body',
+                        'parameters' => $parameters
+                    ]
+
+                ],
+            ],
+        ];
+        $body = json_encode($body);
+
+        $rs = curl_post($url,$body,$header);
+        return true;
+    }
+
 }