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Posted by Vince Morgan on 04/15/07 07:26
"J.O. Aho" <user@example.net> wrote in message
news:58dq4bF2gg80nU1@mid.individual.net...
> It's mainly used to tell what is a variable in a string, say you have a
> variable called $hell and you have the following
>
> echo "$hellohm's";
>
> this would try to use the variable $hellohm, which most likely would be an
> empty variable and result in a string: 's
>
> echo "{$hell}ohm's";
>
> this would use the value of $hell and add ohm's after the value.
>
> The brackets works outside string too, even if it's not that nice looking
IMHO.
>
> In the last line ${$val} is the same as $$val, which makes that the value
of
> $val is used as a variable name, say you
>
> $hello=5;
> $val="hello";
> echo $$val; //will echo the $hello value
>
>
> --
>
> //Aho
Thank you very much indeed.
I think your IMHO is a very valid HO ;)
The revs have reduced a little, but my head is still spinning.
Regards,
Vince
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