ScreenResolution

Anon

Can I track Screen Resolution with PHP, if not how can I get the Information from JavaScript to PHP.The Background: I want to check how many people on our pages use 800x600 Res. I wish to get this Information on the start page and put it in a MySql database. I tried a hidden form and a <BODY onload> JavaScript function, which filled in the screen.width value, but was not able to access the field later on with php.
It was structured something like that.

Any help? Thanks!
Soenke

Anon

Simple methood, just create a starter page with the following content in it...

Where index2.html is the first file you wish the user to see. All this does is submit the values xres and yres to the next page, so all you need to do is simply handle the values in index2.php and do what you will with them.

Example:
<?php
if(isset($xres) && isset($yres))
//save xres & yres values

?>

Anon

PHP is "rendered" before JavaScript!
You can't use echo in PHP after you have executed a JavaScript.

You probably knew that.

Here's one solution.

This is going to be very very slow, but will work.

Anon

Embed a php file in your page as an image.

on screen_res.php you can redirect to a transparent gif or just set the content-type to "image/gif" and print out the code for a transparent gif. this is the code that I use.

<?php
// output of 1 pixel transparent gif
// for counters etc.
// Ulrich Babiak, Koeln 1999/11/30

// some Headers to prevent caching

Header("Content-type: image/gif");
Header("Expires: Wed, 11 Nov 1998 11:11:11 GMT");
Header("Cache-Control: no-cache");
Header("Cache-Control: must-revalidate");

// This prints the raw 1 pixel gif to the browser
// make sure this is one long line!

printf ("%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%c%
c%c%c%c%c%c%c%c",71,73,70,56,57,97,1,0,1,0,128,255,0,192,192,192,0,0,0,33,249,4,
1,0,0,0,0,44,0,0,0,0,1,0,1,0,0,2,2,68,1,0,59);
?>
// the gif is done,

Anon

This might be easier/simpler... especially if you are trying to tie everything into a single form and still make the URLs manageable. You could use GET or POST... doesn't matter.

This will simply submit a variable $resolution (to whatever page the form is submitted to) with the user's screen resolution in string form. So, you would get "800 x 600" or "1024 x 768", etc.

Hope this helps,

Chris

Anon

sir,

i am preparing webpages for site. and i want javascript function to put screen resolution
for html script.Please send me mail as soon
as possible

regards,
manjari.

Anon

What is screen.width?
Is this the measure of the monitor resolution or the webbrowser resolution?

What ever the result of this PHPBuilder thread is, you shouldn't care about the screen resolution. Let the website you're building be fit-to-size.
Read a book about web usability.

Anon

Peter,

What I think some of the posters here are trying to do is capture the screen (actual monitor) resolution for logging etc. (at least that is one of the things that I do with this...)

I agree that the HTML itself should be as "automatic" as possible... using percentages instead of absolute values, but there are times when it is useful to determine the demographics of the visitors of the site so as to better model what/who your site should be developed for.

Chris

Peter Bengtsson wrote:

What is screen.width?
Is this the measure of the monitor resolution or the webbrowser resolution?

What ever the result of this PHPBuilder thread is, you shouldn't care about the screen resolution. Let the website you're building be fit-to-size.
Read a book about web usability.

Anon

Chris,

My first question was technical. Instead of having to go to javascript.internet.com or open my books, I thought I could ask here. Thank you for your response.

Secondly, all I wanted to do was to remind people that a website is more successful when web designers are unaware of screen res.