Re: Help with arrays?

In article <de047$44ed9dc3$8259c69c$5289@xxxxxxxxxxxxxxxx>,
"Rik" <luiheidsgoeroe@xxxxxxxxxxx> wrote:

Flaming Corncob wrote:
In article <9c30f$44ed965b$8259c69c$3516@xxxxxxxxxxxxxxxx>,
"Rik" <luiheidsgoeroe@xxxxxxxxxxx> wrote:

Flaming Corncob wrote:
Is there any way to add to an already existing array?

Several, for instance:

1. $array[] = $value;
Will add a numerically indexed value on the end of the array
2. array_push($array, $foo, $bar,...);
Will add an arbitrary amount of variables to the end of the array
3. array_unshift($arraym$foo,$bar,....);
Same as array_push, only to the beginning

And many, many more possibilities, read up on it:
http://www.php.net/manual/en/ref.array.php
http://www.php.net/manual/en/language.types.array.php

Cool. Already stumbled on array_push() but $array is easier. Next I
need to be able to find something in an array and if it's there erase
it. I've tried unset() but that destroys part of the array and when
you add to it after that it doesn't fill in the hole created by
unset..

Is there any reason why you want a continuous numerically indexed array?
Often there is no need.

You could set an empty variable: $array[$key] = '', or use
array_values($array) to return a freshly indexed array.

Looking for a way to store email addresses. I've coded a forum which is
nearing completion.. one of the things I'd like it to be able to do is
allow users to "subscribe" to something and if a new post is made that
they'd be interested in it would notify them. The only way I see of
doing it is for a group or topic to have it's own simple single array to
hold email addresses.
.

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