I'm not sure what is meant in this thread but arrays
are pretty simple. PHP allows both numerical and
associative arrays (although in all reality they all
are associative) but anyway:
$arr1 = array('a','b','c', 42 => 'yep');
print $arr1[0]; // a
print $arr1[1]; // b
print $arr1[2]; // c
print $arr1[42]; // yep
$arr1[] = 'd';
print $arr1[43]; // d
$arr2 = array('a' => 'apple', 'blah');
print $arr2['a']; // apple
print $arr2[0]; // blah
Anyway the best way to see what values an array
actually has is with print_r() or var_dump()
print_r($arr2);
That code quoted from "PHP Bible" has many issues,
it isn't generic at all. Please ignore it or at
least keep in mind the context of it. A more
generic form of it:
function print_keys_and_values($arr) {
foreach ($arr as $key => $value) {
print "Key: $key - Value: $value<br>\n";
}
}
Please read the following manual entries on arrays:
http://www.php.net/types.array
http://www.php.net/foreach
Play around with them for awhile and they'll
eventually make sense. Regarding the original
question of this thread, see print_r() as I
blame a typo or something... or maybe it's a
variable scope issue. Your example looks fine.
Regards,
Philip Olson
P.s: Essentially
numerical == numbered keys
associative == worded keys
On Mon, 16 Dec 2002, Andy Turegano wrote:
> I see. Well, in that case I don't really know what to do. Sorry.
>
>
> On Tue, 17 Dec 2002, Quentin Bennett wrote:
>
> > Hi,
> >
> > No I don't think that is right.
> >
> > $monthschedule["Jun"] is not what is being looked for, but
>$monthschedule[something]="Jun";
> >
> > Try doing a loop to see what is in the array.
> >
> > Example, from PHP Bible,
> >
> > function print_keys_and_values_each($arr)
> > {
> > reset($arr);
> > while ($cell = each($arr))
> > {
> > $c = $cell['value'];
> > $k = $cell['key'];
> > print ("Key: $k; Value: $c<BR>");
> > }
> > }
> >
> >
> > Quentin
> >
> > -----Original Message-----
> > From: Andy Turegano [mailto:[EMAIL PROTECTED]]
> > Sent: Tuesday, 17 December 2002 10:25 a.m.
> > To: Mako Shark
> > Cc: [EMAIL PROTECTED]
> > Subject: Re: [PHP] Array
> >
> >
> > What you have to do, at least I think, is you have to type:
> > $r = $monthschedule["Jun"];
> >
> > That is what I think you have to do. The other way you did it was when you
> > have a value-only array.
> >
> >
> > On Mon, 16 Dec 2002, Mako Shark wrote:
> >
> > > I have an array I set up like this:
> > >
> > > $monthschedule = array(1 => "Jan", 2 => "Feb", 3 =>
> > > "Mar", 6 => "Jun");
> > >
> > > When I try to access them, doing this:
> > > $r = $monthschedule[6];
> > >
> > > nothing comes up ($r is blank). Any thoughts? There
> > > are missing elements (4,5,7-12) in $monthschedule.
> > >
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