I have Created following class in flie `index.class.php` :-

```
<?php
class index{
        public function loadTitle() {
            $title = "Welcome to My Website";
            return $title;
        }
    }
?>

```

And now, I am using it like below in my `index.php` file

```
    <?php
        require_once("index.class.php");
        $obj = new index();
        echo $obj->loadTitle();
    ?>

```

My question because the Page will become heavy with lots of article and images, and I will expect 1500-2500 user every day in it.

Do I need to also unset memory, I know PHP has its own garbage collector, but following URL scares me out :- [www.google.com/search?q=php+memory+leak+with+new](http://www.google.com/search?q=php%20memory%20leak%20with%20new)

and I saw a few questions in StackOverflow saying it does consumes memory, and certain people have suggested to use the `unset` function, but I am not sure how to do it..

This is my attempt:

Do I need to only call 

```
<?php
    unset($obj); // At the end of the page, or where i will no more be using this object.
?>

```

Or I have to set NULL value too.

```
<?php
    $obj = NULL;
    unset($obj);
?>

```

Is the above code fine for releasing memory, or do I need to do something else too? Please suggest and teach me!