Hi all,
On Sat, 9 Nov 2013 08:45:42 -0500
Shawn H Corey <shawnhco...@gmail.com> wrote:
> On Sat, 9 Nov 2013 19:03:00 +0530
> Unknown User <knowsuperunkn...@gmail.com> wrote:
>
> > Hi,
> >
> > I have a variable that has a function in it, eg: my $newtime =
> > "time() + 30";
> > How can i use it in code so that it always returns time() + 30 when
> > it is called?
>
> See `perldoc -f eval`
>
> Note that using strings with eval could leave your code open to code
> injection, a big security risk. Use with caution. Or better yet, don't
> use it at all.
>
>
an alternative that is often better would be to use subroutine references:
[SHELL]
shlomif@lap:~$ cat sub_ref.pl
#!/usr/bin/perl
use strict;
use warnings;
my $sub_ref = sub { return time() + 30 };
print "Sub-ref call is: ", scalar( $sub_ref->() ), "\n";
shlomif@lap:~$ perl sub_ref.pl
Sub-ref call is: 1384007216
[/SHELL]
Regards,
Shlomi Fish
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