From: corey konrad <0011@...>
Date: 2006-05-15T10:37:15+09:00
Subject: Re: begining programmer questions

oh ok i remember reading that in the book about pointers the = method or 
operator whatever it is, makes something point to something else. So the 
only way to truly change the variable is to change what it points too. 
So i should remmeber that any time i use the = method i am causing 
something to point to something else otherwise i might run into trouble, 
that kind of makes sense. The pointer graphic -----------> helps, lol.




Daniel Baird wrote:
> On 5/15/06, corey konrad <0011@hush.com> wrote:
>>
>> yeah a friend of mine said that PHP would be a good language to learn as
>> a beginner.
> 
> 
> 
> Aargh!  I mean, erm, no, I definitely think you're on the right track 
> with
> Ruby.  I know it doesn't feel like it, but you seems quite close to
> "getting" it.  You're just missing the idea that variable names kinda
> "point" at objects.
> 
> The object pointed at might be an array, or a string, or whatever.. with 
> a
> whiteboard it's quite easy to illustrate the idea, but let's try this:
> 
> when you say:
>   info = "hello there"
> 
> ..that makes a pointer from the variable "info" to the string "hello
> there".  Here's a picture:
> 
>   info ----------> String "hello there"
> 
> When you say:
> 
>   info = []
> 
> ..that makes a pointer from the variable "info" to a new, empty array.
> Doesn't matter what info used to "point" to.. it's now pointing at an
> array.  Like this:
> 
>   info ----------> Array []
> 
> 
> Hope that helps a bit!
> 
> ;D


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