Refresh Page Once On Load

**opus74** · May 5, 2007

I read dallara's question in the forum, and I have a similar ??.

I acccess a radar image on my site, what I would like to do is:

1. user clicks on "view radar"

2. radar page & image loads

3. page immediately reloads

4. page displays & just sits there.

5. There is a <meta http-equiv="refresh" content="420"> in the radar page code

to refresh the image after 7 minutes when the radar updates.

The problem is, currently, a visitor gets an old image and then has to wait 7 minutes for current.

I really don't want to deal with a whole lot of caching/non-caching if I can avoid it. Just a "simple" reload??

Your thoughts & suggestions are appreciated.

**carbonize** · May 5, 2007

I would say either the meta refresh and PHP or Javascript.

At the VERY start of the page you'd put

><?php
$metaTag = '';
if (empty($_COOKIE['refreshed']))
{
  $metaTag = '<meta http-equiv="refresh" content="0">';
  setcookie('refreshed', 1);
}
?>

Then where the meta refresh tag goes put

><?php
echo $metaTag;
?>

This way the meta refresh tag should only appear the first time the page is loaded. I'd recommend this method over the javascript as a few may have javascript turned off.

Edited May 5, 2007 by carbonize

**opus74** · May 8, 2007

Hmm, I must be doing this wrong, it is displaying :

'setcookie('refreshed', 1);

at the top of the page ......

Edited May 8, 2007 by opus74

**carbonize** · May 8, 2007

Did you copy my code exactly ?

**opus74** · May 10, 2007

Did you copy my code exactly ?

Yes, just after <head>.

Here's a shot....GIF killed the graphics ......

sorry, I don't have upload permission here ... but it puts the 'setcookie('refreshed', 1); at the top of the page.

**carbonize** · May 10, 2007

No

><?php
$metaTag = '';
if (empty($_COOKIE['refreshed']))
{
  $metaTag = '<meta http-equiv="refresh" content="0">';
  setcookie('refreshed', 1);
}
?>

That needs to be the very first thing on the page. Nothing before it. No white space, no HTML, nothing.

**Bob Crabb** · May 10, 2007

Opus -- I think that the problem might be that you put php code in a page that has an .html or .htm extension. If you rename the page to a .php extension then the code that Carbonize gave you will work fine.

Please note: If the page has been indexed by the search engines, or saved by users, then you will also want to put in a redirect for the "whatever_the_name_is.html" to "whatever_the_name_is.php".

**TCH-Thomas** · May 10, 2007

Sidenote...

Images can not be uploaded into the posts (as attachments). They must be linked/inserted into the posts from your own server space etc.

**carbonize** · May 10, 2007

Personally I'd recommend something like imageshack.us for times like this where you want to post a picture on a forum that has attachments disabled.

**TCH-Don** · May 11, 2007

Opus -- I think that the problem might be that you put php code in a page that has an .html or .htm extension. If you rename the page to a .php extension then the code that Carbonize gave you will work fine.

Please note: If the page has been indexed by the search engines, or saved by users, then you will also want to put in a redirect for the "whatever_the_name_is.html" to "whatever_the_name_is.php".

If the page does have an .html extension

put this in your .htaccess flie to make it work without changing the extension.

>AddHandler application/x-httpd-php .htm .html

And search engines indexing won't matter.

**Bob Crabb** · May 11, 2007

If the page does have an .html extension
put this in your .htaccess flie to make it work without changing the extension.
>AddHandler application/x-httpd-php .htm .html
And search engines indexing won't matter.

Don, I learn something new every time I read this forum.

**opus74** · May 16, 2007

Thanks everyone, I'm still working on this as time permits.

Sign In

Refresh Page Once On Load

Recommended Posts

opus74

carbonize

opus74

carbonize

opus74

carbonize

Bob Crabb

TCH-Thomas

carbonize

TCH-Don

Bob Crabb

opus74

Join the conversation

Hosting