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From "tony@clearfox.com" <t...@clearfox.com>
Subject Re: mod_perl variables
Date Wed, 10 Aug 2005 17:41:56 GMT

Ok,

I went to google and did some more searching, this time just about the
my var.

I wrote this for an example of BAD use of $variable based on the
article I found.

I believe this demonstrates the coding in my website currently online.
lol, which is failing periodically.

---------------------------------------------------------------
my $i = 1;
my $variable;

if($i > 0)
{
   $variable = "Hello World!";
   print_it();
}

sub print_it()
{
   print "$variable<br>";
   $variable=1;
}


{
   my $variable = "True";
   print "$variable<br>";
}

print "$variable<br>";
---------------------------------------------------------------

When I run it for the first time I get

Hello World!
True
1

Every time after that I get

1
True
Hello World!

Until the process dies and it runs in a new thread.

I believe this is the demonstration of my problem right? I'm pretty
sure I understand now.

Thanks for the tips mate! I'll post this as my fix in the forum.
Tony

tony@clearfox.com wrote:

>
> Thank you for the response.
>
> I am sure going to start using strict.
>
> But one thing, why doesn't my example of NOT using strict, my, our, or 
> local ever fail.
>
> Shouldn't it confuse the $html var with the value of the $html var in 
> the parent file.
>
> Any ideas on what kind of an example will demonstrate to me the 
> variable problem I'm having in a small test program. I'm trying to 
> make a program that will show the effects of not using strict and 
> declaring the $vars. I want to be able to get it to mess up, and then 
> declare the $vars and see it work differently.
>
> I am trying to do this because I do not understand how the $vars are 
> treated differently when not declared.
>
> Thanks a lot!
> Tony
>
> Boysenberry Payne wrote:
>
>> It might be that your variable aren't scoped properly.
>> Try:
>>
>> use strict;
>>
>> my $variable
>> or
>> our $variable
>> to keep the variable scoped to the packages they're in.
>>
>>
>> Boysenberry
>>
>> This message contains information that is confidential
>> and proprietary to Humaniteque and / or its affiliates.
>> It is intended only for the recipient named and for
>> the express purpose(s) described therein.
>> Any other use is prohibited.
>>
>> http://www.habitatlife.com
>> The World's Best Site Builder
>> On Aug 10, 2005, at 11:57 AM, tony@clearfox.com wrote:
>>
>>>
>>> Hello Everyone,
>>>
>>> I have an issue that I am working on. I always ask questions that I 
>>> have to a forum before writing the list just in case someone in the 
>>> forum knows the answer. Usually I don't get any responses.
>>>
>>> I started this thread,
>>>
>>> http://www.tek-tips.com/viewthread.cfm?qid=1104388&page=1
>>>
>>> Will someone take a look and see if my last question can be 
>>> answered. The first two posts will provide context for my situation. 
>>> My handle is perl21
>>>
>>> I was following some advice from a fellow named Fish.
>>>
>>> In my last post in that thread I ask how to make my mod_perl script 
>>> mess up the variable assignment of $html without using my or local
>>>
>>> Thank you,
>>> Tony
>>>
>>>
>>>
>>
>
>




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