hi guys, newbie question. how do read a flat file sequentially? not randomly. ex. i have this flat file.
1|/images/banners/internal/g.gif|http://www.g.com 2|/images/banners/internal/ad.gif|http://www.ad.com/privicard 3|/images/banners/promos/banner.gif|http://www.blah.com 4|/images/banners/promos/banner_o.gif|http://www.b.com
as you can see i want to create a script that would rotate banner ads. i don't wanna randomly diplay images bec. it sometimes displays 2 images that are the same. i want to be able to display images without diplaying 2 or 3 similar images. here's my code that randomly displays images see if you guys can fix this one.
if(!open DAT, "ads.dat") { print "Error: cannot open data file!\n"; exit 1; } else { @imgdata=<DAT>; close DAT; foreach $c (@imgdata) { ($id,$image,$url)=split(/\|/,$c); if ($type=~/^internal|partner$/) { push (@imgs,$image); push (@urls,$url); push (@des,$desc); } } $index = int(rand($#imgs+1)); $img = $imgs[$index]; $link = $urls[$index]; print qq|Set-Cookie: URL=$link\n|; print qq|Location: $img\n\n|; }
thanks in advance.

In reply to Reading files sequentially by damian

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.