Aiutatemi a cambiare qusta riga - upload?

[king size slim]

If(!in_array($ext, $allow_types)) {
                            
                $error.= "Invalid extension for your file: ".$_FILES['file']['name'][$i].", only ".$types." are allowed.
Your file(s) were [b]not[/b] uploaded.
";
                            
                //Check the size of each file
                            
            } Elseif($size > $max_bytes) {
                
                $error.= "Your file: ".$_FILES['file']['name'][$i]." is to big. Max file size is ".$max_file_size."kb.
Your file(s) were [b]not[/b] uploaded.
";
            }
                        
        } // If Files
    
    } 

ho tolto il controllo vedi se sovrascrive oppure posta tutto lo script