On Apr 30, David Gray said:
>> Hi all - should be simple - but I cannot figure it out
>>
>> basically i want to name an array with a subscript ie
>> world0[0] and world1[0] the 0/1 being a variable, i have tried to
>> produce a simple example....
>>
>> For any help - thanks..
>> ----------------------------------------------------------
>> @fred = "one,two,three,four";
>>
>> $a=0;
>>
>> @array$a=split(/,/, @fred)
>>
>> for ($b=0;$b<4;$b++) {
>> print @array$a[$b];
>> }
>
>Just FYI, it is possible to do that, like so:
NO! Don't teach how to do this, please. It can lead to security problems
in your program; it also leads to having an unknown number of variables,
and possibly, variables with names you don't know.
Mark-Jason Dominus has an article about why using a variable as a name for
a variable is a bad idea. Symbolic references are a left-over artifact
from The Land Before Perl 5. They are wizardry, and should be avoided
99.9% of the time. There's about ONE place where you should use them, and
even then, you probably don't need to.
http://perl.plover.com/varvarname.html
--
Jeff "japhy" Pinyan [EMAIL PROTECTED] http://www.pobox.com/~japhy/
RPI Acacia brother #734 http://www.perlmonks.org/ http://www.cpan.org/
** Look for "Regular Expressions in Perl" published by Manning, in 2002 **
<stu> what does y/// stand for? <tenderpuss> why, yansliterate of course.
[ I'm looking for programming work. If you like my work, let me know. ]
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