> -----Original Message-----
> From: Damien Delhomme [mailto:[EMAIL PROTECTED]]
> Sent: Monday, September 30, 2002 11:45 AM
> To: [EMAIL PROTECTED]
> Subject: Has Perl extra memory!?
>
>
> Hi everybody!
>
> One of my program generates a HTML formulary whose number of
> checkboxes fluctuates (they are named mod_0, mod_1, mod_2,
> mod_3...etc).
> Therefore I need a loop in my other program which has to read
> the formulary :
>
> my $count ;
> for ($count=0; $count <= $num; $count++)
> {
> my $mod = $cgi->param("mod_".$count) ?
> $cgi->param("mod_".$count) : "" ;
>
> if ($mod ne "")
> .....................etc
>
> ($num is the number (-1) of checkboxes and it is stocked in a
> hidden inputin the Web page)
>
> Unfortunately it seems that Perl memorises the values of
> these "$mod_i" and doesn't always execute the script with the
> values that are given to it!!
> I have tried differents ways of declaring these parameters
> (our, my, local, outside or inside the loop...etc) and there
> has always been the same problem.
> Basically the first formulary you fill is well executed, and
> after that there is no way to tell when it'll start to bug!
> Sometimes it executes the formulary you have filled three or
> four times before!
>
> I hope someone could help me with this, this problem is
> poisoning my programs!
Read here:
<http://perl.apache.org/docs/1.0/guide/porting.html#Exposing_Apache__Registr
y_secrets>
Short rule of thumb I have devised to avoid this problem:
Anywhere you have a file-scoped lexical in your script, like
my $foo;
Change that declaration to:
our $foo;
local $foo;
This only applies to file-scoped lexicals. "my" variables declared inside
subs or blocks are fine. For details on why this happens and why changing it
to a global fixes the problem, read the mod_perl guide.
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