homepage Welcome to WebmasterWorld Guest from 23.20.63.27
register, free tools, login, search, pro membership, help, library, announcements, recent posts, open posts,
Become a Pro Member

Visit PubCon.com
Home / Forums Index / Code, Content, and Presentation / HTML
Forum Library, Charter, Moderators: incrediBILL

HTML Forum

    
How to change an image and text every time the page is refreshed
LABachlr




msg:587153
 12:42 am on Nov 5, 2003 (gmt 0)

I assume that this is going to involve using a database, which I will need to school myself on as well (so please point me in the right direction for that as well), but I would like to set up a page that would change an image and text every time the page is refreshed. And I would like to have the ability to have it access a database with up to 1000 different images and text.

What would be the HTML coding that I would use?

Is there a certain type of database that I should use?

Also, would the text have to be a gif/jpeg file vs. plain HTML text?

And would the files be shown in a random order, or would they be shown sequentially?

If they would be shown randomly, would the page still not repeat an image until after it has shown all of the images in the database?

 

divaone




msg:587154
 1:50 am on Nov 5, 2003 (gmt 0)

this can be done any (many) number of ways.. js, perl, php, flatfile, mysql, etc etc. search 'cgi resource index' and 'php resource index' for the category 'random'. items can be displayed randomly or sequentially without repeats as specified by each script.

Shannon Moore




msg:587155
 2:12 am on Nov 5, 2003 (gmt 0)

There was an article last week or so on A List Apart (web design & usability reference) called "Random Image Rotation". It offers up a slick way to do this with a simple PHP script and a directory that contains all files you want rotated.

Some limitations of the script as posted were lack of support for ALT and TITLE tag attributes among other things, so surf around the web for alternatives. There are lots out there in every programming language available.

LABachlr




msg:587156
 2:14 am on Nov 5, 2003 (gmt 0)

OK. Thanks. I'll check them both out.

jomaxx




msg:587157
 5:52 am on Nov 5, 2003 (gmt 0)

If you do it in Javascript, then in my experience the content will be randomized every time you display the page, even via the BACK arrow.

With server-side solutions, I would think that the page would frequently remain cached. In that case either the browser would not query the server at all, or the server would return a 304 code. You'd have to test it out to see exactly how the script behaves. Anyway you could override the cacheing by using a meta tag to expire the page.

mikegram




msg:587158
 11:07 pm on Nov 5, 2003 (gmt 0)

I have 2 points.

There really are a lot of ways to go about that, but before jumping into research mode on a particular one, I would take a look at what your hosting provider has loaded on the server. Perl, PHP, or what?

Secondly, on the question of the image, a random image can be loaded with the following bit of JavaScript:

<script language='JavaScript'>
document.write("<img src='graphics/" + Math.floor(Math.random() * 4) + ".jpg'>");
</script>

I have 4 images named 0.jpg, 1.jpg, 2.jpg and 3.jpg all in a directory called graphics/. Need a 1000 images instead of 4? Just change the 4 to 1000 and name your images 0.jpg - 999.jpg.

LABachlr




msg:587159
 12:46 am on Nov 6, 2003 (gmt 0)

Cool. Thanks for the tips.

A poster hooked me up with a free program called HTML Rotate. It works great. You can "rotate" both text and/or HTML. Only thing is, you can't rotate them randomly. At least not that I saw.

NOTE: My server has both PHP and Perl.

Global Options:
 top home search open messages active posts  
 

Home / Forums Index / Code, Content, and Presentation / HTML
rss feed

All trademarks and copyrights held by respective owners. Member comments are owned by the poster.
Home ¦ Free Tools ¦ Terms of Service ¦ Privacy Policy ¦ Report Problem ¦ About ¦ Library ¦ Newsletter
WebmasterWorld is a Developer Shed Community owned by Jim Boykin.
© Webmaster World 1996-2014 all rights reserved