I have been using PHP that someone from this list provided in order to
provide a CSS switcher to my site (below).
I noticed today that it isn't working (it was working previously).
As far as I can tell, the problem is that cookies are not being sent. I
tested this by setting Opera to 'display received cookies' and nothing
happens when I load the page or change the CSS.
Here is the relevant (I think) PHP:
((from the file that starts the page))
session_start();
// new session? set default value
if (!session_is_registered("CSS")) {
session_register("CSS");
$CSS = "default";
}
// setting changed by form? update session value
if (isset($newCSS))
$CSS = $newCSS;
((And then in the file that creates the footer))
// BEGIN choose CSS section
echo <<< EOD
<div id="changecss" class="shownoprint" style="margin-left: auto;
margin-right: auto; text-align:center;">
<form action="$PHP_SELF" method="post">
<p>Change CSS:
<select name="newCSS">
<option value="default" selected="selected">Default</option>
<option value="smaller">Smaller</option>
<option value="larger">Larger</option>
<option value="highcontrast">High Contrast</option>
<option value="print">Print (under construction)</option>
</select>
<input alt="Set" type="submit" name="Set" value="Set" />
(Current: <strong>$CSS</strong>)
</p>
</form>
</div>
EOD;
// END choose CSS section
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