Rod Jenkins <[EMAIL PROTECTED]> wrote:
:
: First of all I just started using cgi last week.
: So, if you see something strange in my code it
: would be lack of knowledge.
: Here is the
: question:
:
: I have some lines that display stuff, then do
: more code, then display more stuff. Is there
: a way to get the first stuff displayed before
: the other code runs? here is an example:
Your running into a problem with the buffer.
Perl's buffer is controlled by the special perl
variable '$|'. You can read more about it in
'perlvar'.
Block buffered output is the default. To
set STDOUT to line buffer output change '$|' to
a non-zero value.
: #!/usr/bin/perl
: use strict;
: use warnings;
: use diagnostics;
Wow, you read the right books!
Add:
$|++;
Or:
$| = 1;
: use CGI qw(:standard); #I really do not understand the qw
: use CGI::Carp qw(fatalsToBrowser);# or the qw here
'qw' is described in 'perlop' under the Quote and
Quote-like Operators section. I think of it as the
"quote word" function because it puts single quotes
around each word it finds.
The list following a 'use Module' call is sent to
a subroutine of the module called 'import'. import
usually imports something into the scripts namespace.
use CGI qw(:standard);
Imports a large group of functions. You can import
individual functions by not preceding them with ':'.
Take a look at the CGI.pm documentation to get all the
details. In your program the line is not needed. You
are not using CGI.pm functions.
use CGI::Carp qw(fatalsToBrowser);
This line will send your errors to the browser.
Normally they go to your logs and you get a 500
server error in the browser. This line is considered
insecure once your script goes into production.
Welcome to perl,
Charles K. Clarkson
--
Head Bottle Washer,
Clarkson Energy Homes, Inc.
Mobile Home Specialists
254 968-8328
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