Re: array references in DBI

I just read the Adv Perl Prog 1st edition and so am trying to use references more. Conceptually it seems straight-forward, but in practice can be a little tricky. So in the same vain, I'm wondering why I can't seem to do:

$temp = pop @$arrayref
[download]

Comment on Re: array references in DBI Download Code

Replies are listed 'Best First'.
Re^2: array references in DBI by CountZero (Bishop) on May 13, 2006 at 18:04 UTC
It works as expected on my computer (Activestate Perl 5.8.7) `# perl v5.8.7 [MSWin32-x86-multi-thread] > my @array= qw/een twee drie vier/; > my $arrayref = \@array; > print $arrayref; ARRAY(0x2089584) > pop @$arrayref; vier > my $temp = pop @$arrayref; > print $temp; drie` [download] CountZero "If you have four groups working on a compiler, you'll get a 4-pass compiler." - Conway's Law	[reply] [d/l]
Re^3: array references in DBI by BrianC (Acolyte) on May 13, 2006 at 18:56 UTC
Sorry, I should have been much more specific, as it's probably also my confusion as to how DBI works. If I do something like: `my $ratest = $dbh->selectrow_arrayref($sql); my $testorder = pop @$ratest;` [download] I get an error: Modification of a read-only value attempted	[reply] [d/l]
Re^4: array references in DBI by ruzam (Curate) on May 14, 2006 at 15:23 UTC
Did selectrow_arrayref() actually return an array ref? If the $sql failed, $ratest will be 0 (a literal).	[reply]
Re^5: array references in DBI by Anonymous Monk on May 14, 2006 at 16:47 UTC


We don't bite newbies here... much
	PerlMonks