api chat, send summary, health sertificate, callback duitku

app/Helpers/Helper.php

@@ -490,4 +490,13 @@ class Helper
         return $umur . ' years old';
     }
 
+    public static function calculateDateDifference($startDate, $endDate)
+    {
+        $start = Carbon::parse($startDate);
+        $end = Carbon::parse($endDate);
+
+        return $start->diffInDays($end) + 1;
+    }
+
+
 }