TalkPHP - View Single Post

xenon · 06-06-2009, 05:10 PM

PHP Code:


			
class OnlineNowTable extends TableWriter {

    public function writeTable() {
        $query = "select username from login where (loggedin > 0) AND (username != '$this->username')";

        $result = mysql_query($query) OR die('Cannot perform OnlineNowTable query!');

        $str = "<table><tr><th>Online Now</th></tr>";

        if (mysql_num_rows($result) == 0) {        
            $str .= "<tr><td>nobody online</td></tr>";
        }
        else {
            while($row = mysql_fetch_array($result))
            {
            $str .= '<tr><td>'.$row['username'].'</tr></td>';
            }
        }

        $str .= "</table>";
        
        print $str;
    
    }
}

You don't have $username = 'something' somewhere in the writeTable method, therefore $username is out of scope (meaning it doesn't exist in that method -- function). You want to use the class property $username, which is available through $this->username.

06-06-2009, 05:10 PM	#6 (permalink)
xenon The Frequenter Join Date: Dec 2007 Location: Bucharest, Romania Posts: 438 Thanks: 3	PHP Code: class OnlineNowTable extends TableWriter { public function writeTable() { $query = "select username from login where (loggedin > 0) AND (username != '$this->username')"; $result = mysql_query($query) OR die('Cannot perform OnlineNowTable query!'); $str = "<table><tr><th>Online Now</th></tr>"; if (mysql_num_rows($result) == 0) { $str .= "<tr><td>nobody online</td></tr>"; } else { while($row = mysql_fetch_array($result)) { $str .= '<tr><td>'.$row['username'].'</tr></td>'; } } $str .= "</table>"; print $str; } } You don't have $username = 'something' somewhere in the writeTable method, therefore $username is out of scope (meaning it doesn't exist in that method -- function). You want to use the class property $username, which is available through $this->username. __________________ I have optimistic thoughts, even though sometimes (if not always) life's a bitch.