Boring old question...

[Yue]

Yeah.. Good day everyone. I'm very new to PHP, so please deal with a very newbie question.

It's regarding Javascript values...

Well, I read several old posts saying it wasn't possible. However, I would like to have my code analyzed by anyone of you.

<?
$resolution = "<script type=\"text/javascript\">document.write(screen.width)</script>";
include("header.php");
if (($resolution > 0) && ($resolution <= 799)) {
echo "This is 640x480 Resolution";
} else if (($resolution >= 800) && ($resolution <= 1023)) {
echo "This is 800x600 Resolution";
} else {
echo "This is 1024x768 Resolution";
}
include("footer.php");
echo $resolution;
?>

As you can see, I designed this script to load different code depending on the resolution.

Now... I would be 100% satisfied with the PHP-JS thing if $resolution would return a weird value.

But:

1.) My script apparently has no errors.
2.) When I do echo $resolution, I get a value! And that value is correct.

The problem is that when I change resolutions, then the script seems to follow the else case regardless of the resolution.

... But that does not happen when I use echo $resolution.

Which makes me assume perfect that there is a value in resolution! But why isn't that value working on the actual script?

Thanks!

[bad76]

Originally posted by Yue

<?
$resolution = "<script type=\"text/javascript\">document.write(screen.width)</script>";
...
?>

Hi.
This is the point

This line is parsed on the SERVER, and it say to interpret to put a string in $resolution. When you echo $resolution, you get 800 or other right number because you transfer from SERVER to CLIENT the string in $result. This string now is parsed from explorer (netscape, mozilla, opera, linx, voyager, konqueror etc etc) on the CLIENT and it execute the javascript. But there is not way to put this value directly in $result and test on SERVER machine before to execute it on CLIENT machine.

If you want do this, just reload the script passing it $result:

<?
if(!isset($resolution))
{
?>
<script type="text/javascript">
document.location.replace(document.location+"?resolution="+document.write(screen.width))
</script>
<?
}
...
?>

[/SIZE]

see you

ps: if a lot of post saying this not possible, is not possible.