[SOLVED] Variable not passing to included class

[devknob]

Please excuse my ignorance as this is day 6 on learning php, and this is the first time I ever use "function" and "classes"

Ive spent like 4 hours ??? trying to figure out why my variable $uid is not passed from profile.php to my usersOnline.class.php (see where the SQL insert refers to $this->un

 

My end-goal is to basically have the "This user is online" on a users profile like myspace, so if there is a better solution, please post it.

 

PHP version 5.1.6

MySQL version 5.0.27-standard-log

 

it goes something like this

$uid = $_SESSION['uid']

include('classUsers.class.php')

 

class usersOnline {

 

var $timeout = 600;

var $count = 0;

var $error;

var $i = 0;

 

function usersOnline () {

 

$this->un = $uid;

$this->timestamp = time();

$this->ip = $this->ipCheck();

$this->new_user();

$this->delete_user();

$this->count_users();

}

 

function ipCheck() {

 

if (getenv('HTTP_CLIENT_IP')) {

$ip = getenv('HTTP_CLIENT_IP');

}

elseif (getenv('HTTP_X_FORWARDED_FOR')) {

$ip = getenv('HTTP_X_FORWARDED_FOR');

}

elseif (getenv('HTTP_X_FORWARDED')) {

$ip = getenv('HTTP_X_FORWARDED');

}

elseif (getenv('HTTP_FORWARDED_FOR')) {

$ip = getenv('HTTP_FORWARDED_FOR');

}

elseif (getenv('HTTP_FORWARDED')) {

$ip = getenv('HTTP_FORWARDED');

}

else {

$ip = $_SERVER['REMOTE_ADDR'];

}

return $ip;

}

 

function new_user() {

$insert = mysql_query ("INSERT INTO useronline(timestamp, ip, un) VALUES ('$this->timestamp', '$this->ip', '$this->un')");

if (!$insert) {

$this->error[$this->i] = "Unable to record new visitor\r\n";

$this->i ++;

}

}

 

function delete_user() {

$delete = mysql_query ("DELETE FROM useronline WHERE timestamp < ($this->timestamp - $this->timeout)");

if (!$delete) {

$this->error[$this->i] = "Unable to delete visitors";

$this->i ++;

}

}

 

function count_users() {

if (count($this->error) == 0) {

$count = mysql_num_rows ( mysql_query("SELECT DISTINCT ip FROM useronline"));

return $count;

}

}

 

}

 

[devknob]

btw, everything below the include IS the include

[per1os]

Did you put session_start() at the top of each page you are trying to access or set the session variable?

[devknob]

Diddnt think I needed that on an include, I tried it anyways and it still didnt work.

 

If I put a print $uid; directly before the class usersOnline{ it will print out the correct value, but anything within the class does not work.

[per1os]

   $this->un = $_SESSION['uid'];

 

If you assign $_SESSION['uid'] to $uid, $uid is not a global variable, where as $_SESSION is. Meaning that you cannot use $uid outside of the scope, where the class would be outside of the scope. Change the line above and it should work.

[devknob]

thank you 1,000,000 times buddy