He said (and I think he meant) 5 to 10 FIVE digit zip codes. And I think he was just going to hard code those zip codes in the script. So perhaps something like:
#!/usr/local/bin/perl -l -w

use strict;
use CGI;

my @zips = qw(
    92714
    92715
    92716
);

my %zips;
@zips{@zips} = ();

my $q = CGI->new;

print $q->header;
print $q->start_html;

if (my $zip = $q->param('zip')) {
 print "<br>You entered $zip";
 my $valid = (exists $zips{$zip}) ? 'valid' : 'invalid';
 print "<br>It is $valid";
} else {
 print $q->start_form;
 print $q->textfield(-name=>"zip");
 print $q->submit("Go");
 print $q->end_form;
}

print $q->end_html;

[download]
Update: Ok, so you can get rid of the hash and replace 'exists $zip{$zips}' with 'grep { $_ eq $zip } @zips' (see my benchmarks further down this thread), although if you were to port this to mod_perl or the like I'd stick with a hash (though it'd be defined differently) :-)

In reply to Re: Re: Zip Code Script by runrig
in thread Zip Code Script by WebSmart

Title:
Use:  <p> text here (a paragraph) </p>
and:  <code> code here </code>
to format your post, it's "PerlMonks-approved HTML":


  • Posts are HTML formatted. Put <p> </p> tags around your paragraphs. Put <code> </code> tags around your code and data!
  • Titles consisting of a single word are discouraged, and in most cases are disallowed outright.
  • Read Where should I post X? if you're not absolutely sure you're posting in the right place.
  • Please read these before you post! —
  • Posts may use any of the Perl Monks Approved HTML tags:
    a, abbr, b, big, blockquote, br, caption, center, col, colgroup, dd, del, details, div, dl, dt, em, font, h1, h2, h3, h4, h5, h6, hr, i, ins, li, ol, p, pre, readmore, small, span, spoiler, strike, strong, sub, summary, sup, table, tbody, td, tfoot, th, thead, tr, tt, u, ul, wbr
  • You may need to use entities for some characters, as follows. (Exception: Within code tags, you can put the characters literally.)
            For:     Use:
    & &amp;
    < &lt;
    > &gt;
    [ &#91;
    ] &#93;
  • Link using PerlMonks shortcuts! What shortcuts can I use for linking?
  • See Writeup Formatting Tips and other pages linked from there for more info.