What is a while(list()/each() combo?

Anon

Hi.

I recently downloaded phpIRC and need to use one of it's function's, irc_get_nick_list(). HEre is the documentation for that function:

array irc_get_nick_list($channel) - Retrieve a channel nick list

This function returns the nick list of the specified channel. This function
will only produce meaningful results when phpIRC is handling the channel
(and returns 0 on error). Note that the returned array is NOT filled
consecutively, thus it HAS to be read using a while(list()/each()) combo.

I need to know, what is a while(list()/each()) combo, and how can I use it for this function?

Anon

I think it means that the array that's returned doesn't nec. start at zero and count up. It can miss numbers. So you can't count($array), find out how many there are, and use a for loop...you'd use a list()/each() method...something like this:

$array = irc_get_nick_list($channel);
while(list($nick) = each($array))
{
echo $nick;
}

See if that works...

---John Holmes...

Anon

For these situations, rather than a "while(list()/each()) combo" I've always found "foreach" easier to use and read:

foreach(array_expression as $key => $value)

see http://www.php.net/manual/control-structures.foreach.php for details.

Anon

Nope, this doesn't work.

Any other suggestions?

Anon

Why do you say that? What errors are you getting? show the code your using...

"doesn't work" does not help anyone solve any problem...

---John Holmes...

Anon

function show_seen($nick, $trignick)
{
global $wanted_channel, $wanted_nick, $db_host, $db_user, $db_name, $db_pass;

if ($nick == $wanted_nick) {
	irc_privmsg($wanted_channel, "Quit wasting my time you moron");
	return;
}
if ($nick == $trignick) {
	irc_privmsg($wanted_channel, "You can't find yourself. God you are fux0rd.");
	return;
}
$nicklist = irc_get_nick_list($wanted_channel);
while (list(, $ircnick) = each($nicklist)) {
$string = "Test: " . $ircnick;
irc_privmsg($wanted_channel, $string);
if ($ircnick == $nick) {
	irc_privmsg($wanted_channel, "Too stupid to look at the nicklist?!");
	return;
}
}

...
}

There's all the code you need to see. It does not execute the while code, and I know this for a fact because it doesn't display the little test message I have in there.

Anon

$nicklist = irc_get_nick_list($wanted_channel);
while(list($ircnick) = each($nicklist))
{
$string = "Test: $ircnick";
irc_privmsg($wanted_channel,$string);
if($ircnick == $nick)
{
irc_privmsg($wanted_channel,"Too stupid to look at the nicklist?!");
}
}

You had a random comma in there and a 'return'...don't know why.

---John Holmes...

Anon

Unfortunately, that still does not work. It doesn't put the test string in there which means that the while loop was not executed at all. Any other suggestions?

Anon

What about using the following?

$nicklist = irc_get_nick_list($wanted_channel);
while (list($key, $val) = each($nicklist)) {
$string = "Test: " . $val;
irc_privmsg($wanted_channel, $string);
if ($val == $nick) {
irc_privmsg($wanted_channel, "Too stupid to look at the nicklist?!");
return;
}
}

I'm not sure if that'll work, but that's how the manual shows it.