Posted by noone on 03/18/06 01:12

frizzle wrote:
> Hi there,
>
> Recently i noticed a few times an ampersand in front of a variable in a
> function.
> Like so:
>
> function foo( &$bar )
> {
> // do something
> };
>
> What is it for? I can't figure it out ...
>
> Frizzle.
>


from:
http://www.softwareprojects.org/php-functions-12.htm

Another way to access the data outside the function, without using an
argument is by using a reference to a variable as an argument. You can
do this by placing an ampersand “&” in front of the argument, when you
define the function. This way, the function will directly access the
variable thru the reference, and the variable can be assigned and read
at the same time.

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