Re: [Phpwebsite-developers] Use of var references in fallout modules

[Matthew M. <ma...@tu...>]

On Thu, 2006-03-09 at 17:54 -0500, Verdon Vaillancourt wrote:
> 1)
> $search = & new Search($this->key_id);

Been so long doing this I forgot why I did it. I believe it is because
you just want a reference pointing to the class and not a copy.

> 2)
> function &cpanel()
> {
>      do something;
> }

This means you are returning a reference point. 
function &getit()
{
    $a = 1;
    return $a;
}

$b = getit();

So instead of creating a new variable ($b) with new memory addresses I
just point to the result of the function.

> 3)
>   function _loadCategory(&$cat_item, &$blog, $version=NULL)
> {
>      do something;
> }

This one is very useful. I can send in a variable, work on it in the
function and then return something different. For example, I could parse
cat_item, alter the variable, and return TRUE. Also in the example
above, I could alter cat_item and blog at the same time.


-- 
Matthew McNaney
Electronic Student Services
Appalachian State University
http://phpwebsite.appstate.edu