On Thu, Oct 08, 2009 at 06:08:48PM -0700, Daevid Vincent wrote:
> I feel like a total newb asking this, but I'm just having a brain fart or
> something...
>
> I'm writing a page where I can either get back a list of items:
>
> Array {
> [1233] => "apple",
> [6342] => "apricot",
> [2345] => "banana",
> ...
> }
>
> where the user then refines it by choosing one single item and a single
> element array is returned like this:
>
> Array {
> [8575] => "peach",
> }
>
> How can I get this $item so I can print it like so:
>
> echo "The ID is $id and the name is $name";
>
> Normally with an array of items, I do a:
>
> foreach ($item as $id => $name) echo...
>
> But that seems overkill for this scenario.
>
> The rub is that I don't know the "id", so I can't use $item[0], and I also
> don't have something like $item['name'] to use either.
>
> There's got to be an easy way to extract those.
>
> list($id, $name) = $operator;
>
> Felt like it would work for a minute (wishful thinking).
If you don't know the index, then you really have no choice but to
iterate through the POST array (if I understand you correctly). One
problem I see is that you're using an integer for your index. The way I
normally do things like this is to provide a prefix for the index. Like
this:
$items = array('fruit_1233' => 'apple',
'fruit_6342' => 'apricot',
'fruit_2345' => 'banana',
'fruit_8575' => 'peach');
Then, out of all the POST members returned, I can pick out the ones
pertaining to fruit by simply looking for ones which have the 'fruit_'
prefix as their index. It tends to be clunky, but it's the only way I've
found to make it work:
$fruits = get_fruits_from_table();
foreach ($fruits as $key => $value) {
$index = 'fruit_' . $key;
if (isset($_POST[$index])) {
echo "The user wants fruit #$key, $value.";
}
}
Paul
--
Paul M. Foster
--
PHP General Mailing List (http://www.php.net/)
To unsubscribe, visit: http://www.php.net/unsub.php
