vb.org Archive - Why would this code not work...

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- - Why would this code not work... (https://vborg.vbsupport.ru/showthread.php?t=65349)

dstruct2k

05-21-2004 04:10 AM

Why would this code not work...

PHP Code:


		
			
$users = explode(" ",$event['users']);
foreach ($users AS $reggeduser) {
if ($reggeduser = $bbuserinfo['userid']) {
$registered = 1;
}
}

Why wouldn't this work?

$event['users'] is populated with a space-delimited field from the database, full of userids.

dstruct2k

05-21-2004 04:45 AM

Nevermind, must be late... (12:45 AM :))

PHP Code:


		
			
        $users = explode(" ",$event['users']);

        foreach ($users AS $index => $value) {

            if ($value == $bbuserinfo['userid']) {

                $registered = 1;

            }

        }

dstruct2k

05-26-2004 05:05 PM

Similar idea now, but now I want to join "$users" with the `user` table to get the username of every registered user. :) Ideas?

I could do it where 1 query is executed for every userid registered, but that's very.... excessive. :)

dstruct2k

05-26-2004 05:11 PM

How's this?

PHP Code:


		
			
        $userids = explode(" ",$event['users']);
        foreach ($userids AS $index => $value) {
            if ($firstdone = 0) {
                $querystuff = "$value";
                $firstdone = 1;
            } else {
                $querystuff .= "OR WHERE userid = $value";
            }
        }
 
        $names = DB_site->query_first("SELECT * FROM " . TABLE_PREFIX . "user WHERE userid = $querystuff");

It's just kinda random thoughts put into code, but would it do what I want?

Xenon

05-27-2004 12:31 PM

that's bad, and not working at all ;)

better way:

PHP Code:


		
			
$userids = explode(' ', $event['users']);



// make sure to have at least one id

$userids[] = 0;



//now get users and their names:

$users = $DB_site->query("

    SELECT userid, username

    FROM " . TABLE_PREFIX . "user

    WHERE userid IN (" . implode(', ', $userids) . ")

");



//and now loop through the event users.

while($user = $DB_site->fetch_array($users))

{

    // do your stuff in here.

}

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