what is difference of decalation and and defination in perl ?

I am assuming in
my $x = 5;

$x is declared with my
and $x is defined with value 5.

Am i getting it right? Thanks! :-)
beer9Asked:
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Kim RyanIT ConsultantCommented:
It is just the same as saying
my $x;
$x = 5;

But if you just did
use strict;
$x = 5;

You would get an error saying undeclared variable $x
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gelonidaCommented:
my $x; # x is declared
$x = 5; # x is assigned and has now a defined value
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mankowitzCommented:
For subroutines:
declaration is saying "this is the name of my routine and these are its inputs"
definition is saying "this is the code to be executed when my routine is called"

so, this is a declaration:
sub count_people(@people);

and this is a definition
sub count_people(@people) { return $#people; }

For variables:
declaration is saying "I am going to use this variable"
assignment is saying "this variable now contains this value"
definition really doesn't apply to variables.
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beer9Author Commented:
Thank you :-)
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