Arrays inside arrays.

Perl seems to hate these...

[adni18]

Hi. I need to make an array of arrays in perl, but for some reason it doesn't want to access the individual parts of the array as individual arrays. Example:

@servers=(
(0,5)
(1,6)
(2,7)
);

what I want to be able to do is call $servers[0][1] and have it return 5. But for whatever reason, $servers[1] returns 5, and $servers[0][1] returns nothing. Any idea how to fix this? Thanks!

[perl_diver]

you just have the syntax wrong:

@servers=(
[0,5],
[1,6],
[2,7]
);

anonymous arrays are created with square brackets, not parenthesis. You may want to read up on perl data structures:

[perldoc.perl.org...]

and maybe references:

[perldoc.perl.org...]

[zCat]

@servers=(
(0,5)
(1,6)
(2,7)
);

as an addendum to perl_diver's reply: what is happening in the original code is that Perl is "flattening out" the bracketed numbers inside the outer parentheses, so effectively you are writing

@servers=(0,5,1,6,2,7);

[adni18]

Thanks guys!

[perl_diver]

zCat has a good point, but actually this code isn't valid and will not compile:

@servers=(
(0,5)
(1,6)
(2,7)
);

the below code will create a flattend list and is what I assumed you must be using since your code did seem to run:

@servers=(
(0,5),
(1,6),
(2,7)
);