| Re: Why Can't I "define" a Value for a Subscript? PS [message #175236 is a reply to message #175235] |
Sun, 28 August 2011 19:36   |
eBob.com
Messages: 11
Registered: August 2011
Karma:
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Junior Member |
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I did a simple experiment that I thought might shed some light on this. But
instead I just increased my confusion.
I tried the following ...
define('SS1SITE',0);
echo 'ss1site is: '. "SS1SITE\n";
and the output is ...
ss1site is: SS1SITE
My book says that variable substitution happens within double quotes and in
my limited experience that is true.
Why isn't the variable substitution happening in this case?
Thanks, Bob
"eBob.com" <eBob(dot)com(at)totallybogus(dot)com> wrote in message
news:Cvw6q(dot)176718$k33(dot)110045(at)en-nntp-13(dot)dc1(dot)easynews(dot)com...
> I am working with some csv files. To make the program more maintainable
> and more self-documenting I "define" values to use as subscripts; e.g. ...
>
> define('SS2KEY',0);
>
> BUT, whereas this produces what I expected ...
>
> echo "we have a match - key: $file2cols[0]\n";
>
> ... this does not ...
>
> echo "we have a match - key: $file2cols[SS2KEY]\n";
>
> I see the other text but no value is substitited for $file2cols[SS2KEY]
>
> I've wasted so much time on this. Why can't I define constants to use as
> subscripts?
>
> Thanks, Bob
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