Posted by howachen on 05/14/06 21:10

how about PHP4? need explictly use reference?



Ryan Lange wrote:
> howachen@gmail.com wrote:
> > if this instance use a lot of memory, would it be better if i use
> > reference?
> >
> > e.g.
> >
> > //*********************
> > public static function &singleton()
> > {
> > if (!isset(self::$instance)) {
> > $c = __CLASS__;
> > self::$instance = new $c;
> > }
> >
> > return self::$instance;
> > }
> > //*********************
>
> By default, objects in PHP5 are passed/returned by reference, so
> this is unnecessary.
>
> Ryan

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