On Thu, June 15, 2006 8:11 am, Ross wrote:
> I want to set a page number of a page
>
> if(!isset($_REQUEST['page'])) {
> $page =$_REQUEST['page'] + 1;
These two together make no sense at all...
If the $_REQUEST['page'] is NOT set, then why use it? It's NOT THERE.
> echo "page is ".$page; // this echos out page is 1
> }
Here is a more sensible approach:
//use page requested, or default to page 1:
$page = isset($_REQUEST['page']) ? $_REQUEST['page'] : 1;
You can write that as a 6-line if statement if you like:
if (isset($_REQUEST['page']){
$page = $_REQUEST['page'];
}
else{
$page = 1;
}
> The problem is when I try and use $page further down in the body $page
> is 0
In that case, you are on ?page=2 in your script, and you didn't do
ANYTHING about $page in the original version.
> Question <?=$page; ?> <BR />
> <? echo "page is".$page; ?>
> <?=$question[($page-1)]; ?>
>
>
> I also get an undefined index notice
>
> Notice: Undefined index: page in
> c:\Inetpub\wwwroot\lss\module_one\evaluation.php on line 8
> page is 1
>
> but I though if I do a if(!isset($_REQUEST['page'])) this is the way
> to set
> a previously undefined index?
No.
isset() CHECKS if a variable/index is set. It does not alter anything
at all. It just tests.
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