acuh wenn du (hoffentlich) schon am korrigieren bist:
Verwende nirgends $username sonder imme rnur $_SESSION['username']
					Verwende nirgends $username sonder imme rnur $_SESSION['username']
..     $db = mysql_connect("localhost","","");
    $res = mysql_db_query("", "select * from users order by userid DESC");
    $num = mysql_num_rows($res);
    for ($i=0; $i<$num; $i++)
    {
        $userid = mysql_result($res, $i, "userid");
        $username = mysql_result($res, $i, "username");
        $usermail = mysql_result($res, $i, "usermail"); .. 
<table width="488" height="50">
    <tr>
        <td></td>
    </tr>
</table>
<table width="488">
    <tr>
        <td width="18%"></td>
        <td width="36%"><font size="2">Nick</font></td>
        <td width="10%"></td>
        <td width="36%"><font size="2">E-mail</font></td>
    </tr>
</table>
<table width="488">
    <tr>
        <td width="20%"></td>
        <td width="60%"><img src="img/balken.jpg"></td>
        <td width="20%"></td>
    </tr>
</table>
<?
    $db = mysql_connect("localhost","","");
    $res = mysql_db_query("", "select * from users order by userid DESC");
    $num = mysql_num_rows($res);
    for ($i=0; $i<$num; $i++)
    {
        $userid = mysql_result($res, $i, "userid");
        $username = mysql_result($res, $i, "username");
        $usermail = mysql_result($res, $i, "usermail");
        $usersession = mysql_result($res, $i, "usersession");
        $useron = mysql_result($res, $i, "useron");
        $usericq = mysql_result($res, $i, "usericq");
        $userland = mysql_result($res, $i, "userland");
        $lf = $i + 1;   
if (!logged_in()) {
        echo"            <table width=\"488\">";
        echo"                <tr>";
        echo"                    <td width=\"18%\"></td>";
        echo"                    <td width=\"15%\"><font size=\"2\">$username</font></td>";
        echo"                    <td width=\"3%\"><img src=\"img/$userland.gif\"> 
<img src=\"http://web.icq.com/whitepages/online?icq=$usericq&img=5\">   <img src=\"img/$useron.jpg\"></td>";
        echo"                    <td width=\"10%\"></td>";
        echo"                    <td width=\"47%\"><a href=\"mailto:$usermail\">$usermail</a></td>";
        echo"                </tr>";
        echo"            </table>";
}
else {
        echo"            <table width=\"488\">";
        echo"                <tr>";
        echo"                    <td width=\"18%\"></td>";
        echo"                    <td width=\"15%\"><font size=\"2\"><a href=\"front.php?nav=pmsg\">
$username</a></font></td>";
        echo"                    <td width=\"3%\"><img src=\"img/$userland.gif\"> 
<img src=\"http://web.icq.com/whitepages/online?icq=$usericq&img=5\">   <img src=\"img/$useron.jpg\"></td>";
        echo"                    <td width=\"10%\"></td>";
        echo"                    <td width=\"47%\"><a href=\"mailto:$usermail\">$usermail</a></td>";
        echo"                </tr>";
        echo"            </table>";
}
}
?>
<?
    $db = mysql_connect("localhost","","");
    $res = mysql_db_query("", "select * from users order by userid DESC");
    $num = mysql_num_rows($res);
<?
    $db = mysql_connect("localhost","","");
    $res = mysql_db_query("", "select * from users");
    $num = mysql_num_rows($res);
<?
    $db = mysql_connect("localhost","","");
     $res="";
     $num="";
    $res = mysql_db_query("", "select * from users");
    $num = mysql_num_rows($res);
<?
    $db = mysql_connect("localhost","","");
    $res = mysql_query("", "select * from users");
    $num = mysql_num_rows($res);
Warning: mysql_query(): supplied argument is not a valid MySQL-Link resource in /www/htdocs/energize/v1/user/userlist.php on line 24 Warning: mysql_num_rows(): supplied argument is not a valid MySQL result resource in /www/htdocs/energize/v1/user/userlist.php on line 25
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