add new function esc() to replace htmlspecialchars(), add DotEnv on Helper.php

Author: vgalvoso

app/Libraries/Helper.php

@@ -1,4 +1,6 @@
 <?php
+    use App\Libraries\DotEnv;
+    (new DotEnv(BASE_DIR . '/.env'))->load();
     /**
      * Generate output in JSON format and terminate the script
      *
@@ -62,7 +64,7 @@ function view($fileName,$data = null){
     if(! function_exists('route')){
         function route($route){
             if($route == "")
-                return header("Location: http://localhost/hris");
+                return header("Location: ".getenv('APP_URL'));
             header("Location: $route");
             exit();
         }
@@ -88,3 +90,7 @@ function notFound(){
         header("HTTP/1.1 404 Not Found");
         exit("URL not found");
     }
+
+    function esc($string){
+        return htmlspecialchars($string);
+    }