added function to get ip address

BackEnd/src/classes/Request.class.php

@@ -139,4 +139,17 @@ class Request
         }
         return $arrayResult;
     }
+
+    function getIpAddr()
+    { 
+        if(!empty($_SERVER['HTTP_CLIENT_IP'])){ 
+            $ip = $_SERVER['HTTP_CLIENT_IP'];
+        }elseif(!empty($_SERVER['HTTP_X_FORWARDED_FOR'])){ 
+            $ip = $_SERVER['HTTP_X_FORWARDED_FOR']; 
+        }else{ 
+            $ip = $_SERVER['REMOTE_ADDR']; 
+        }
+
+        return $ip; 
+    } 
 }