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Perl in a Nutshell, 2nd Edition
book

Perl in a Nutshell, 2nd Edition

by Nathan Patwardhan, Ellen Siever, Stephen Spainhour
June 2002
Beginner content levelBeginner
759 pages
80h 42m
English
O'Reilly Media, Inc.
Content preview from Perl in a Nutshell, 2nd Edition

<Perl> Sections

With mod_perl, you can use Perl in Apache configuration files. What this means is that you can make your Apache configuration much more flexible by using conditionals.

Any Perl code in Apache configuration files should be placed between <Perl> and </Perl> directives. This code can define variables and lists used by mod_perl to assign the associated Apache configuration directives; for example, assigning the $ServerAdmin variable will redefine the ServerAdmin Apache configuration directive.

Suppose you share the same Apache configuration files across multiple servers, and you want to allow personal directories on only one of them. You can use Perl directives like this:

<Perl>
if ('hostname' =~ /public/) {
        $UserDir = "public.html";
} else {
        $UserDir = "DISABLED";
}
1;
</Perl>

Directive blocks (such as <Location>...</Location>) can be represented as a hash. For example:

<Perl>
$Location{"/design_dept/"} = {
        DefaultType   => 'image/gif',
        FancyIndexing => 'On'
}
</Perl>
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Publisher Resources

ISBN: 0596002416Errata Page