[php] mysql error

[Yony]

i get this error:
Fatal error: Call to a member function query() on a non-object in D:\Program Files\Xampp\htdocs\exphist.php on line 21

<?PHP
$limit = 300;
$type = $_REQUEST['type'];
function coloured_value($valuein)
{
	$value2 = $valuein;
	while(strlen($value2) > 3)
	{
		$value .= '.'.substr($value2, -3, 3);
		$value2 = substr($value2, 0, strlen($value2)-3);
	}
	$value = $value2.$value;
	if($valuein > 0)
		return '<font color="green">+'.$value.'</font>';
	elseif($valuein < 0)
		return '<font color="red">'.$value.'</font>';
	else
		return '<font color="black">'.$value.'</font>';
}
if(empty($type))
	$players = $SQL->query(' SELECT * FROM players ORDER BY `players`.`experience`-`players`.`exphist_lastexp` DESC LIMIT '.$limit)->fetchAll();
elseif($type == "sum")
	$players = $SQL->query(' SELECT * FROM players ORDER BY `players`.`exphist1`+`players`.`exphist2`+`players`.`exphist3`+`players`.`exphist4`+`players`.`exphist5`+`players`.`exphist6`+`players`.`exphist7`+`players`.`experience`-`players`.`exphist_lastexp` DESC LIMIT '.$limit)->fetchAll();
elseif($type >= 1 && $type <= 7)
	$players = $SQL->query(' SELECT * FROM players ORDER BY exphist'.(int) $type.' DESC LIMIT '.$limit)->fetchAll();
$main_content .= '<CENTER><H2>Ranking of powergamers</H2></CENTER><BR><TABLE BORDER=0 CELLPADDING=4 CELLSPACING=1 WIDTH=100%></TABLE><TABLE BORDER=0 CELLPADDING=4 CELLSPACING=1 WIDTH=100%><TR BGCOLOR="'.$config['site']['vdarkborder'].'"><TD WIDTH=10% CLASS=whites><B>Rank</B></TD><TD WIDTH=75% CLASS=whites><B>Name</B></TD>';
if($type == "sum")
	$main_content .= '<TD WIDTH=15% bgcolor="red" CLASS=whites><b><center><a href="?subtopic=exphist&type=sum">7 Days sum</a></center></B></TD>';
else
	$main_content .= '<TD WIDTH=15% bgcolor="yellow" CLASS=whites><b><center><a href="?subtopic=exphist&type=sum">7 Days sum</a></center></B></TD>';
for($i = 7; $i >= 2; $i--)
	if($type == $i)
		$main_content .= '<TD WIDTH=15% bgcolor="red" CLASS=whites><b><center><a href="?subtopic=exphist&type='.$i.'">'.$i.' Days Ago</a></center></B></TD>';
	else
		$main_content .= '<TD WIDTH=15% bgcolor="yellow" CLASS=whites><b><center><a href="?subtopic=exphist&type='.$i.'">'.$i.' Days Ago</a></center></B></TD>';
if($type == 1)
	$main_content .= '<TD WIDTH=15% bgcolor="red" CLASS=whites><b><center><a href="?subtopic=exphist&type=1">1 Day Ago</a></center></B></TD>';
else
	$main_content .= '<TD WIDTH=15% bgcolor="yellow" CLASS=whites><b><center><a href="?subtopic=exphist&type=1">1 Day Ago</a></center></B></TD>';
if(empty($type))
	$main_content .= '<TD WIDTH=15% bgcolor="red" CLASS=whites><b><center><a href="?subtopic=exphist">Today</a></center></B></TD>';
else
	$main_content .= '<TD WIDTH=15% bgcolor="yellow" CLASS=whites><b><center><a href="?subtopic=exphist">Today</a></center></B></TD>';
$main_content .= '</TR>';
foreach($players as $player)
{
	if(!is_int($number_of_rows / 2)) { $bgcolor = $config['site']['darkborder']; } else { $bgcolor = $config['site']['lightborder']; } $number_of_rows++;
	$main_content .= '<tr bgcolor="'.$bgcolor.'"><td align="center">'.$number_of_rows.'. </td>';
	if($player['online'] == 1)
		$main_content .= '<td><a href="?subtopic=characters&name='.urlencode($player['name']).'"><b><font color="green">'.$player['name'].'</font></b></a>';
	else
		$main_content .= '<td><a href="?subtopic=characters&name='.urlencode($player['name']).'"><b><font color="red">'.$player['name'].'</font></b></a>';
	$main_content .= '<br />'.$player['level'].' '.$config_vocations[$player['vocation']].'</td><td align="right">'.coloured_value($player['exphist1'] + $player['exphist2'] + $player['exphist3'] + $player['exphist4'] + $player['exphist5'] + $player['exphist6'] + $player['exphist7'] + $player['experience'] - $player['exphist_lastexp']).'</td>';
	$main_content .= '<td align="right">'.coloured_value($player['exphist7']).'</td><td align="right">'.coloured_value($player['exphist6']).'</td><td align="right">'.coloured_value($player['exphist5']).'</td><td align="right">'.coloured_value($player['exphist4']).'</td><td align="right">'.coloured_value($player['exphist3']).'</td><td align="right">'.coloured_value($player['exphist2']).'</td><td align="right">'.coloured_value($player['exphist1']).'</td><td align="right">'.coloured_value($player['experience']-$player['exphist_lastexp']).'</td></tr>';
}
$main_content .= '</TABLE>';
?>

 

[Azi]

"$SQL->query" and where the declared class "$SQL" should add $SQL = new class, and should work. (Class must exist) and you have to use PHP 5.0+

 

[Yony]

didn't understand what i have to change and where :s (i'm not php scripter )

i have this code: what do i need to change?

$players = $SQL->query(' SELECT * FROM players ORDER BY `players`.`experience`-`players`.`exphist_lastexp` DESC LIMIT '.$limit)->fetchAll();

 

[Kofels]

and you have to use PHP 5.0+

Tell me why? o.0
Yonu, where you was get this code? Person who was made this code haven't any skill... In this code it isn't any $SQL declaration

Edit:
I might it's a Gesior AAC? If it is, replace all $SQL to POT::getInstance()->getDbHandle(); or add after <?PHP

$SQL = POT::getInstance()->getDbHandle();

 

[Yony]

I'm using Gesior AAC
did what u said:

Fatal error: Class 'POT' not found in D:\Program Files\Xampp\htdocs\exphist.php on line 2

 

[Kofels]

hey. How you call for this script in browser?
You can't do this like About-servers but ?subtopic=exphist if i good remember

 

[Yony]

worked! thx a lot bro

 

[Kofels]

No problem ;]