Gossamer Forum: General: Perl Programming: cannot use param and other stuff

Jun 24, 2008, 9:36 AM

junshi

New User (1 post)

Jun 24, 2008, 9:36 AM

Post #1 of 3

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cannot use param and other stuff - Internal Server Error

I got a server here at a company. I can run the following codes in any other server, but not in this particular one.
Anyone know how to configure the server to let it work?

500 Internal Server Error

If I marked out the param lines, it works fine.

Code:


#!/usr/bin/perl -w 
use CGI qw/:standard/; 
use CGI::Carp qw(warningsToBrowser fatalsToBrowser); 
use strict; 
print header, 
        start_html('A Simple Example'), 
        start_form, 
        p('Your name?'), 
        textfield('name'), 
        p, 
        submit, 
        end_form, 
        hr; 
if (param()) { 
 print "Your name is", param('name'), hr; 
} 
print end_html;

Jun 24, 2008, 10:12 AM

Andy

Veteran / Moderator (14935 posts)

Jun 24, 2008, 10:12 AM

Post #2 of 3

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Re: [junshi] cannot use param and other stuff - Internal Server Error In reply to

Hi,

Erm, what exactly is:

Code:
if (param()) {

..mean't to be doing?

Looks like you need:

Code:
if (param('name')) {

Also,to make your scripts easier (in terms of including extra modules) - I would tend to go for something more like this:

Code:
#!/usr/bin/perl -w 
use CGI qw/:standard/; 
use CGI::Carp qw(warningsToBrowser fatalsToBrowser); 
use strict; 
my $cgi = new CGI; 
print $cgi->header, 
  $cgi->start_html('A Simple Example'); 
  $cgi->start_form, 
  $cgi->p('Your name?'), 
  $cgi->textfield('name'), 
  $cgi->p, 
  $cgi->submit, 
  $cgi->end_form, 
  $cgi->hr; 

  if (param('name')) { 
     print "Your name is", param('name'); 
     $cgi->hr; 
  } 

print $cgi->end_html;

(or at least, something like that Tongue

- didn't test it)

Cheers

Andy (mod)
andy@ultranerds.com

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Jun 24, 2008, 4:42 PM

Wychwood

User (145 posts)

Jun 24, 2008, 4:42 PM

Post #3 of 3

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Re: [Andy] cannot use param and other stuff - Internal Server Error In reply to

Code:
if (param()) {

...is perfectly acceptable, although param('name') is more logical.

Last edited by:

Wychwood: Jun 24, 2008, 4:43 PM